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PROCEEDINGS

OF THE

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Academy of Natural Sciences

OF

PHILADELPHIA

Volume LXll

1910

philadelphia : The Academy of Natural Sciences

LOGAN SQUARE ^'3 ^

1910-1911

"l^

I

The Academy of Natural Sciences of Philadelphia,

February 2, 1911.

I hereby certify that printed copies of the Proceedings for 1910 were mailed as follows :

Pages 1-32 March 29, 1910.

'' 33-144 April 26, 1910.

" 145-254 May 23, 1910.

" 255-270 May 26, 1910.

" 271-382 July 21, 1910.

'' 383-430 July 25, 1910.

" 431-462 July 29, 1910.

'' 463-494 August 17, 1910.

'' 495-534 October 6, 1910.

" 535-566 December 13, 1910.

" 567-614 January 14, 1911.

" 615-694 January 27, 1911.

EDWARD J. NOLAN, M.D.,

Recording Secretary.

PUBLICATION committee:

Henry Skinner, M.D., Wither Stone,

Henry A. Pilsbry, Sc.D., William J. Fox^

Edward J. Nolan, M.D.

The President, Samuel G. Dixon, M.D., LT..D., ex-officio.

EDITOR: Edward J. Nolan, M.D.

CONTENTS.

For Anriouncements, Reports, etc., see General Index.

PAGE

BarboJljr, Thomas. A note regarding the Chinese Alligator 464

BiLGRAM, Hugo. Unusual forms of Myxomycetes 271

BoYER, Charles S. Jelly-pores in the Diatomacese 271

Bush, Katharine J., Ph.D. Description of new Serpulids from Bermuda, with notes on known forms from adja- cent regions. Plate XXXVI 490

CoLTON, Harold Sellers. Modiolaria marmorata and its

surface film 42

Cook, Margaret Harris, Ph.D. Spermatogenesis in Lepi-

doptera. Plates XXH-XX VII. 294

Fowler, Henry W. Thamnophis butleri in Pennsylvania 149

Notes on the Variation of some species of the Genus Notro-

pis. Plates XV-XXI 273

Notes on Batoid Fishes 468

Description of four new Cyprinoids (Rhodeinae) 476

Little-known New Jersey Fishes 599

Notes on Chimseroid and Ganoid Fishes 603

A new Albuloid Fish from Santo Domingo 651

Fowler, Henry W., and Dr. Richard J. Phillips. A new fish

of the Genus Paralepis from New Jersey 403

Moore, J. Percy, Ph.D. The Polychaetous Annelids dredged in the U. S. S. "Albatross" off the coast of Southern California in 1904: II. Polynoidae, Aphroditidse and

Segaleonidffi. Plates XXVIII-XXXIII 328

Nolan, Edward J., M.D. A Biographical Notice of Henry Cad-

walader Chapman, M.D., Sc.D. With portrait 255

Palmer, T. Chalkley. Stauroneis Terryi D. B. Ward. Plate

XXXIV 456

A new Diatom. Plate XXXV 460

Pennell, Francis W. Flora of the Conowingo Ban-ens of

Southeastern Pennsylvania 541

iv CONTENTS.

PAGE

PiLSBRY, Henry A., Sc.D. A new species of Mariniila from

near the head of the Gulf of California 148

A new Haitian Oligocene Horizon 487

Land Mollusca of the Panama Canal Zone. Plate XXXVII. . . 502

PiLSBRY, Henry A., and Amos P. Brown. The Mollusca of

Mandeville, Jamaica, and its Environs 510

PiLSBRY, Henry A., and J. H. Ferriss. Mollusca of the Southwestern States: IV. The Chiricahua Mountains, Arizona. Plates I-XIV 44

Rehn, James A. G. On the Orthoptera of Bermuda 3

Some notes on Idaho Orthoptera, with the description of a

new^ species of Trimeropteris 12

Rehn, James A. G., and Morgan Hebard. A revision of the North American Species of the Genus Ischnoptera

(Orthoptera) 407

Records of Georgia and Florida Orthoptera, with the

descriptions of one new species and one new subspecies. . . . 585 Preliminary Studies of North Carolina Orthoptera 615

Sargent, C. S. Crataegus in Pennsylvania. II 1 50

Smith, Burnett. Notes on some little-known Fishes from the

New York Devonian 656

Smith, Edgar F. Some Berks County Minerals 538

SouTHERAN, R., B.Sc. A ncw species of Enchytrseid Worm

from the White Mountains 18

Vanatta, E. G. Bermuda Shells 664

Walker, Bryant. Variations of Polygyra albolabris in Michi- gan 21

Wherry, Edgar T., Ph.D. The Copper Deposits of Franklin

and Adams Counties, Pennsvlvania 454

PROCEEDINGS

ACADEMY OF NATURAL SCIENCES

PHILADELPHIA

1910.

January 4. J. Percy Moore, Ph.D., in the Chair.

Twelve pei-sons present.

The Council reported the appointment of the following standing Committees to serve during the year:

Finance : John Cadwalader, Edwin S. Dixon, Effingham B. Morris, James D. Winsor, and the Treasurer.

Publications: Henry Skinner, M.D., Witmer Stone, Henry A. Pilsbry, Sc.D., William J. Fox, and Edward J. Nolan, M.D.

Library: Thomas Biddle, M.D., Thomas H. Fenton, M.D., Henry Tucker, M.D., and Frank J. Keeley.

Instruction and Lectures: Benjamin Smith Lyman, Henry A. Pilsbry, Sc.D., Charles Morris, Witmer Stone, and Henry Tucker, M.D.

The death of Israel W. Morris, a member, December 17, 1909, was announced.

Henry Leffmann, *M.D., made a communication on parasitism in plants. (No abstract.)

2 proceedings of the academy of [jan.,

January 18. Henry Skinner, M.D., in the Chair.

Twenty-five persons present.

The deaths of the following were announced: Edward A, Jessup, a member, April 4, 1909; John Ford, a member, January 10, 1910; Peter MacOwen, a correspondent, December 1, 1909; R. Bowdler Sharp, a correspondent, December 25, 1909.

Dr. William Morton Wheeler made a communication on the effects of parasitic and other kinds of castration on insects. (No abstract.)

Hamilton D. Carpenter was elected a member. The following were ordered to be printed:

1910.] NATURAL SCIENCES OF PHILADELPHIA.

ON THE ORTHOPTERA OF BERMUDA.

BY JAMES A. G. REHN.

In the spring of 1909 the Academy received from Mr. Frank M. Jones a collection of Bermudan Orthoptera which had been secured by him during a residence of some months in the islands. This sending was supplemented later by several others, the whole series, while not large, being of considerable interest, as Mr. Jones endeavored to secure every species seen during his stay, which lasted from Decem- ber, 1908, to the latter part of April, 1909. The examination of the literature on Bermudan Orthoptera demonstrated how imperfect and unsatisfactory was the last summary of the Bermudan repre- sentatives of the order, that of Verrill. In consequence the pub- lished records were gathered together, the determinations of necessity being given as recorded unless the synonymy was well known and established, the results of the material on hand and the publish^d^ records being incorporated into the paper here presented.

Twenty-eight species are here recorded, of which two taken from previous authors have only generic reference. A tabulation of the species according to their distribution (omitting the two Avithout specific identification) gives the following results:

Peculiar to Bermuda 2

Tropical and subtropical America 2

South America, Antilles and Bermuda 1

North America and Bermuda 5

Circumtropical 3

North America, West Indies and Bermuda 3

Cosmopolitan '■ •• 5

All America 2

North America, Bahamasand Bermuda 1

North America, Mexico, Cuba, Bahamas and Bermuda 1

North America, Mexico and Bermuda 1

From this it would appear that the greater portion of the Orthop- terous fauna of the region is closer related to that of the mainland than to that of the Antilles, excluding, of course, from consideration the cosmopolitan and circumtropical forms, which probably have been introduced by commerce.

4 PROCEEDINGS OF THE ACADEMY OF [Jan.,

The author wishes to express his indebtedness to Mr. Jones for his interest and energy which brought to light the most remarkable of the two known endemic species.

DERMAPTERA. LABIDURIDiB. Labidura bidens (Olivier).

Five adult males, one immature male and three adult females from Paget West, taken December 9 to March 24, have been examined and compared with Georgian and Cuban material of the species. This species has been recorded (as L. riparia) by Uhler, Dahl, Scudder and Verrill. The latter states (p. 827) that it is ''not uncommon, occur- ring among debris along the shores, and also in storehouses,'' Uhler (p. 156) has suggasted the probability of its introduction by com- merce. Anisolabis maritima (Bon.).

According to Verrill (p. 827) this species is common under decaying debris and stones at high-tide mark. No Bermudan specimens have been seen by us, and no other author has recorded the species from the islands. Aiiisdlabis axinulipes.(H.LLucas).

This widely distributed species is represented by a male and four female individuals taken in Paget West, December 9 to March 30. One female, taken March 30, 1909, has the femoral annuli practically absent. Kirby^ has described the Bermudan insect as distinct, but Caudell had shown it is not separable from the typical form of this almost cosmopolitan species.

ORTHOPTERA s. s.

BLATTID^. Blattella germanioa (Linnseus).

Verrill (p. 826) recorded this species on local authority, but no speci- mens had been seen by him.

Ceratinoptera diaphana (FabrLcius).

Scudder recorded this species from the collection made by J. M. Jones, while the present series contains three adult males, three adult females and five immature individuals taken in Paget West, January 2 to May 17. The collector's notes are to the effect that the specimens

^ Anisolahis antennata, Journ. Linn. Soc. London, XXIII, p. 517, 1891.

1910.] NATURAL SCIENCES OF PHILADELPHIA. 5

were beaten from cedar trees and the species was found rarely under stones in woods.

The species is widely distributed in the West Indies., Blatta orientalis Linnaeus.

Included on the authority of Verrill, who states (p. 825) that it is mostly confined to dwellings and ships. Periplaneta americana (Linnaeus).

This widely distributed species has been recorded by J. M. Jones, Uhler, Dahl, Hurdis and Verrill, and is represented in the series in hand by a single male from Paget West. It is stated to be extremely abundant during the hot summer months, particularly in old houses surrounded by trees, and Verrill (p. 824) entertains the possibility of its being indigenous. F. M. Jones' note, ''Not often seen, perhaps more abundant indoors," may be explained by the season when collecting was done not being the hot summer months, although the suggestion of greater abundance indoors is probably the more potent explanation. Periplaneta australasiae (Fabricius).

Scudder and Verrill have both recorded this species, the latter author considering it common in the fields, under stones and in buildings. An adult male from Paget West and one nymph from th^ same locality, taken May 8, are before us. The collector's notes arQ, to the effect that the species is very abundant under stones out o^ doors. Leucophaea maderae (Fabricius),

This widely distributed species has been recorded from Bermuda by J. M. Jones, Uhler, Hurdis and Verrill. The latter author states that it is very common in storehouses, while Jones and Hurdis agree in considering it less abundant than P. americana. The former of these two last mentioned authors states (p. 110) that it is rarely seen except in cellars and other dark places, and that it is known locally as the ''knocker," from a habit of making a noise like a person gently tapping on a box or board. The present collection contains one female from Paget West, the notes accompanying which are the same as those on Periplaneta americana, and which can probably be ex- plained in similar fashion. Pyonoscelus surinamensis (Linnaeus).

This species has been recorded by Scudder, Dahl and Verrill, and is represented in the present series by two adult females and five imma- ture specimens, taken in Paget West, December 11 to January 24. It is found under stones and considered common.

6 PROCEEDINGS OF THE ACADEMY OF [Jan.,

MANTID^. Stagmomantis sp.

Verrill (p. 823) records on Henshaw's authority a species of this genus in Bickmore's collection from Bermuda. Mr. F. M. Jones (in litt.) comments as follows on this record: ''The mantis recorded was perhaps a stray specimen, otherwise I should have seen at least the egg-masses before this.''

PHASMIDiE. Anisomorpha buprestoides.

On Henshaw's authority Verrill (p. 823) also records this species as taken in Bermuda many years ago (about 1861) by A. S. Bickmore. The fact that both this and the preceding species have been unnoticed by other collectors, in spite of their conspicuousness w^herever found, leads one to suspect the possibility of erroneous labelling.

, AORIDIDiE. Orphulella pelidna (Burmeister).

Uhler (p. 152) has recorded this species as Stenobothrus maculipen- nis, one of its synonyms. Probably 0. olivacea is the species to which the reference should belong. Orphulella olivaoea (Morse).

Scudder (p. 43) has recorded this species, and a series of two males and five females taken in Warwick Parish, December 11 to April 18, are now before us. Probably Dahl's record of a species of Orphula and J. M. Jones' "small yellowish-brown colored grasshopper" belong to this species. The latter author says (p. Ill) the species is " common on open tracts, particularly where the sandy waste is relieved by tufts of grass." The notes with the specimens in hand are to the effect that it Ls not rare and found on the south shore of Warwick Parish. Orphulella speoiosa Scudder.

This species was recorded by J. M. Jones in 1876 on Scudder's deter- mination, the record being published as Stenobothrus bilineatus, one of the synonymic names of the species. It appeai-s probable to the author that the record really refers to 0. olivacea, a species unrecog- nized at that date. Dissosteira Carolina (Linnaeus).

This species has been recorded by Jones and Verrill, and three females from Paget West, December 16-27, 1908, and summer of 1909 are in the present series. The two December specimens were the only ones seen by the collector during his stay, the summer individual having been sent him by a friend. These specimens have the median

1910.] NATURAL SCIENCES OF PHILADELPHIA. 7

carina of the pronotum lower and more uniform in elevaticin than in the majority of specimens from the United States. , Soaistoc«roa amerioana (Dniry). Caudell (p. 330) has recorded this species from Bermuda.

Paroxya bermudensis Rehn.

1909. Paroxya bermudensis Rehn, Ent. News, XX, p. 343. [Warwick Parish, Bermuda.]

The full data for this most interesting species are given in the original description. It is apparently a form which matures late in the fall and in early winter, as search in March, April and May in the section where the types were taken on January 15 revealed only immature individuals.

TETTIG-ONIDiB. Neoconocephalus triops (Linnaeus).

Verrill (p. 821) has recorded this species as Conocephalus dissimilis on Henshaw's authority. Neoconocephalus maxillosus (Fabricius).

This Antillean species is represented in the present series by a single male and two females taken in Paget West, December-January and summer of 1909, and at Walsingham, February 16.

These specimens are smaller than Redtenbacher's measurements of the species, but otherwise no differences exist. The male Paget West individual measures as follows :

Length of body.. 24.0 mm.

Length of fastigium 1.2 "

Length of pronotum 7.5 "

Length of tegmen 30.5 "

Length of caudal femur 18.0 ^'

This is the first record of the species from Bermuda. Neoconocephalus fusco-striatus"(Redtenbacher).

Scudder (p. 43) has recorded this species, and a pair taken in Paget West, December to January, are before us. According to the accom- panying notes the species is not common at that season. Orchelimum vulgare Harris.

Uhler (p. 158) has recorded this species on the basis of a badly broken female individual.

Conocephalus fasciatus (DeGeer). {Xiphidium fasciatum Auct.)

One male and three females of this species taken in Paget West are in the present series. This is the first record of the species from Bermuda, where it is said to be locally abundant.

8 PROCEEDINGS OF THE ACADEMY OF [Jan.,

Gryllus bermudensis Caudell.

This form, recently described on the basis of a single specimen, is represented in the present collection by an interesting series of forty- one individuals taken in Warwick Parish, in Paget West and on St. George Island, on a number of dates in December, January, April and May. The majority of the specimens are accompanied by habitat data, and the whole series presents some light on the extent of variability in size, proportions and coloration in material of this genus from a circumscribed locality.

The striking coloration of the type is hardly equalled in the series before us, although closely approached, but in no case is the extent of ochraceous on the head as great as originally described. Mr. Cau- dell, while in Philadelphia, kindly looked over some of the material treated in this connection and, as far as memory served him, he con- sidered the specimens to belong to his species. It is apparent that the majority of specimens are darker and less contrastingly colored than the type, and it is as evident that a considerable amount of color variation is present in the species. From a type with the head and pronotum blackish, marked on the gense, shoulders of pronotum, borders of the lateral lobes, cephalic edge of pronotal disk and around the eyes with ochraceous, and having the tegmina and limbs rufo- testaceous, the series can be laid in a graduated transition to a nearly uniform blackish type. The specimens from the south shore of War- wick Parish exhibit a constant type of coloration for the habitat, four males and two females from this section, all taken in April and May, having the head and pronotum shining black, with little or no ochraceous and comparatively pale tegmina and limbs. A depau- perate pair from the meadows of Paget West, all seen from the locality, are blackish brown without any pale color, except on the angle of the tegmina where there is a touch of testaceous. The other series are either of a uniform type, blackish brown with a limited and variable amount of ochraceous on the gense and pronotum, or each locality has several different shades of coloration.

In size we have an interesting case of depauperation in five specimens from Paget West and Warwick Parish Meadows and Warwick Parish without further data, all the other material being of what miglit be considered more normal size.

Careful tabulation of the proportions of the ovipositor and caudal femora reveals a variable disparity between the two, and while the correlation with the habitat is barren of results of a positive character, the suggestions are rather significant. The proportions of the females are as follows :

1910.]

NATURAL SCIENCES OF PHILADELPHIA.

Caudal femora. Meadow: Warwick Parish 9.3 mm.

Paget West .....".10.0 "

South shore: Warwick Parish 12.0 ^'

Inland: Paget West 12*8 ''

" 10.2 "

'' ^ " 10.8 "

*' Warwick Parish 11.5 "

'' 10.8 "

" 11.3 "

" 11.5 "

'' " " 11.3 "

'' 12.8 ''

No habitat given : Paget West 11.5 "

'' 12.8 "

" 11.0 ''

Warwick Parish 10.0 "

" 12.0 "

St. George Island 11.2 "

Retabulating the same specimens for the excess of one of these" proportions over the other we have the following:

Caudal femora Ovipositor exceeding exceeding

ovipositor, caudal femora.

Meadow: Warwick Parish 3 mm

Ovipositor.

9.0 mm.

10.5

9.2

16.5

16.0

18.0

12.0

11.8

13.0

10.5

12.5

11.8

12.5

13.0

11.5

16.5

13.8

13.0

9.5

15.0

13.5

Paget West 8

South shore: Warwick Parish

Inland : Paget West.

Warwick Parish.

No habitat given : Paget West 0

K li

il li

li li

Warwick Parish.

li

a

St. George Island.

im. ]

liin.

.2

a

it

4.5

a

4.5

il

5.2

11

1.8

11

1.0

li

1.5

11

li

1.2

il

'' ' .3

it

1.2

a

.2

ic

.0

a

3.7

a

2.8

it

1.2

it

.5

ft

3.0

f.

2.3

((

10 PROCEEDINGS OF THE ACADEMY OF [Jan. ,

The series is divided as follows on wing length :

Short-winged. Long- winged.

d' 9 d 9

Meadows : Warwick Parish 2 - . 1 2

Paget West - - 11

South shore: Warwick Parish 2 2 - -

Inland: Paget West 1 1 3 2

" Warwick Parish 2 2 - 5

No habitat given : Paget West 2 3 3 1

" Warwick Parish - 1 - 1

St. George Island - - - 1

It is interesting to note that the depauperate individuals are all long-winged.

At the present time it does not appear desirable to attempt to make any statement on the systematic relationship of this species. To regard it as an entity worthy of a name, whether specific or subspecific, appears to us to be a necessary course, but what its possible origin was or nearest affinities are can only be determined by careful quan- titative work on not only this, but also the closely related North American and West Indian species of the genus. Mr. Jones' notes are to the effect that the species is very abtmdant under stones.

Gryllus luctuosus Serville.

This species has been recorded by Uhler and Verrill, and also as the synonymous ahbreviaius by the latter author. It is quite probable that these references really belong to the preceding species, G. her- mudensis.

Gryllus assimilis Fabricius.

Dahl has credited this species, bat no doubt the reference really belongs to G. hermudensis.

Liphoplus krugii Saussure.

Four females of this species, taken January 6 and 18 in Paget West, are in the collection. When compared with Cuban specimens they are found to be inseparable. The collector's notes are to the effect that the species is not frequent and that the specimens were beaten from cedar trees.

This is the first record of the species from the Bermudas. Cylindrogryllus sp.

Dahl has recorded an undetermined species of this South American genus as living in numbers on a gray-leafed shrub growing in moist places. A strong suspicion exists in the author's mind that the well-

1910.] NATURAL SCIENCES OF PHILADELPHIA. 11

known Liphoplus krugii may have been erroneously determined as a Cylindrogryllus by Dahl.

Literature.

1859. Jones, J. M. The Naturalist in Bermuda. London. Orthoptera on pp. 109-112. Five species mentioned. 1876. Jones, J. M. The Visitor's Guide to Bermuda, with a Sketch of its Natural History. London. Orthoptera by Scudder, p. 144. 1889. Uhler, p. R. Observations on the Insects of the Bermudas. In Angelo Heilprin, The Bermuda Islands, pp. 152-158. Six species of Orthoptera mentioned. 1892. Dahl, Fr. Die Landfauna von Bermuda. In Ergebnisse Plankton-Expe- dition der Humboldt-Stiftung, Bd. I, pp. 104-112, taf. III. Six species of Orthoptera mentioned on page 109. 1897. HuRDis, J. L. Rough Notes and Memoranda relating to the Natural History of the Bermudas. Notes on three species of Orthoptera on pp. 326-327. 1897. Scudder, S. H. [Note on Bermuda Orthoptera.] Psyche, VIII, p. 43. Six species listed.

1902. Verrill, a. E. The Bermuda Islands: Their Scenery, Climate, Produc-

tions, Physiography, Natural History and Geology; with sketches of their Early History and the changes due to Man. Trans. Conn. Acad. Arts and Sci., XI, pt, II. Orthoptera on pp. 821-828. Eighteen species recorded with more or less certainty.

1903. Caudell, a. N. Notes on the Orthoptera of Bermuda, with the Descrip- tion of a New Species. Proc. Ent. Soc. Wash., V, pp. 329-331.

Thirteen species mentioned.

12 PROCEEDINGS OF THE ACADEMY OF [Jan.^

SOME NOTES ON IDAHO ORTHOPTERA., WITH THE DESCRIPTION OF A NEW SPECIES OF TRIMEROTROPIS.

BY JAMES A. G. REHN.

The following notes and records are based on a small but interesting collection of Orthoptera made in the month of July at Springfield^ Bingham County, Idaho, by Dr. Henry Skinner. One of the most interesting species in the collection is Trimerotropis rebellis Saussure, a form which stood on our lists as a species unrecognized in American collections for several decades.

MANTID^. Litaneutria minor (Scudder).

One female.

This is the first exact record of the species from Idaho, Scudder's onh^ record from that State being ''Southern Idaho," taken from Bruner's record of " Ameles sp."

AORIDID^. Cordillaoris affinis Morse.

Four females. July 25.

These specimens agree with the character given by Morse for sepa- rating this species from C. occipitalis, and in addition the species is seen to differ in the narrower interspace between the eyes. This species was described from Ormsby County, Nevada, and is here recorded from outside that State for the first time. Stirapleura delioatula (Scudder).

One female. July 25.

This is the first Idaho record of the species. Hippisous neglectus (Thomas).

One female. July 25.

This specimen lacks the pale line along the posterior anal vein seen in some individuals.

Hippisous validus Scudder.

Two females. July 24.

These specimens have the tegmina several millimetei-s longer than the measurement given by Scudder for the species, which was de- scribed from Blaine County, Idaho, and also exhibit other minor

1910.] NATURAL SCIENCES OF PHILADELPHIA. 13

differences; but inasmuch as the specimens show considerable indi- vidual variation in themselves, it appears preferable to regard the material in hand as validus, at least until further information is avail- able. Conozoa wallula Scudder.

One female. July 25. Trimerotropis rebellis Saussure.

Two males, one female. One dated July 25.

These specimens fully agree with the original description of the species which was described from California. Rehn and Hebard's T. bilobata is the closest relative of this species, differing, however, in the characters given in the diagnosis of their species.

Trimerotropis gracilis (Thomas).

One female.

This species has been recorded from Birch Creek, Idaho. Trimerotropis arenaceus n. sp.

Types : d^ and 9 ; Springfield, Bingham County, Idaho. July 25, 1906. (Henry Skinner) [Acad. Nat. Sci. Phila.]

Related to T. albolineata Bruner and T. cristata McNeill, with specimens of both of which it has been compared, differing from both in the more robust build, the glaucous caudal tibiae and the suppression of the dark dorsal bar on the entire length of the lateral lobes of the pronotum. The general color is much like that of Trimerotropis maritima interior, but the pronotal crest is very much more decided than in that race.

Size slightly less than the average for the genus ; form moderately slender; surface of the body more or less distinctly punctate except for the glab- rous venter of the thorax and abdomen. Head with the occiput and interocular region strongly arcuate and distinctly elevated dorsad of the disk of the pronotum, the interspace between the eyes being hardly (cJ^) or distinctly (9) broader , Fig. l.~Tri7nerotro- than twice the width of the basal antennal joint; P^' LaSout* fastigium nearly half again as long as broad, line of head and decidedly excavate with a low medio-longitudinal f|^^''*''(''x'*3.T''^^ carina, lateral carinse well elevated, the depression extending caudad to between the eyes and not markedly delimited from the occiput, cephalad separated more or le-s distinctly by a V-shaped carina from the frontal costa ; lateral f orveolae distinct, impressed, tri-

14

PROCEEDINGS OF THE ACADEMY OF

[Jan.,

gonal ; frontal costa compressed dorsad of the insertion of the antennee, expanding between the antennae, very slightly constricted ventrad of the ocellus and thence expanding to the clypeal suture, moderately sulcate for a short distance ventrad of the ocellus, slightly sulcate dorsad of the same; eyes quite (d^) or moderately (9) prominent, in length about equal to (cJ^) or slightly shorter than (9) the infraocular sulcus;

Fig. 2. Trimerotropis arenaceus n. sp. Dorsal view of female type. ( X 2.)

antennae distinctly exceeding the head and pronotum in length. Pro- notum with the greatest doi-sal width about equal to the greatest length; median carina distinctly elevated and cristate on the prozona, divided rather deeply into two lobes of which the cephalic is twice the length of the caudal, although but slightly higher than the caudal, the outlines of the lobes being rounded, except for the caudal por- tion of the margin of the cephalic lobe which is subangulate, varying in the two types, median carina distinct on the metazona, but not elevated except cephalad; lateral angles distinct, irregular cephalad,

1910.] NATURAL SCIENCES OF PHILADELPHIA. 15

carinate on the cephalic portions of both the prozona and meta- zona; cephalic margin broadly obtiise-angulate, caudal margin slightly obtuse-angulate, metazona about one and one-half times the length of the prozona; lateral lobes deeper than long, subequal in width, ventral margin oblique, the ventro-caudal margin rounded, ventrad with a very blunt and low process. Tegmina exceeding the apex of the abdomen by about ( 9 ) or nearly (cJ^) the length of the head and pronotum together, rather slender, the greatest width contained about five and one-half times in the length, the apex oblique rotundato- truncate. Wings rather narrow, the greatest width very slightly more than half the length. Caudal femora of medium build, the ventral carina hardly arcuate and not produced; caudal tibiae with eight to nine spines on the external margin.

General color very pale pinkish ochraceous, becoming yellowish on the abdomen and venter, the overlying markings being dull, burnt umber. Head with the occiput obscurely mottled, the gense pale but clouded with pale bluish and the carinse beaded with the darker color, a faintly indicated transverse bar indicated by very weak clouds and clustered beading on the carinse being present immediately ventrad of the antennae and another midway between this and the sutural margin ; eyes raw sienna ; antennae regularly annulate umber and pinkish, the annulations usually occupying a wlioie joint each . Pronotum uniformly stippled with the umber dorsad the lateral lobes with the metazona nearly uniform with the dorsum, the prozona with two longitudinal umber bands one dorsad and the other mesad, the area between pale, a more or less distinct hoary white spot present about in the middle of the lateral lobes. Tegmina with the punctations of umber grouped irregularly into a median and one or two proximal groups, very poorly defined and limited almost entirely to the discoidal field, the distal half occa- sionally (d^ type) with an additional small irregular group indication and always with distinct infuscation of the longitudinal veins, infuscate cross veins in some cases forming contrasting cells. Wings with the proximal half pale greenish yellow, the apical portion hyaline with the principal veins blackish brown; transverse bar blackish brown varying some in intensity, narrow, in no case solid but always with the vein infuscation giving the body to the bar, nearly or quite reaching the caudal margin but not continued on it toward the internal margin; spur rather broad, reaching halfway to the base of the wing, separated ' by a very narrow hyaline area from the wing band. Cephalic and> median limbs annulate more or less distinctly by clouds and bead grouping on the carinae. Caudal femora with four distinct black

16 PROCEEDINGS OF THE ACADEMY OF i [Jan.,

areas on the internal face, one proximal, one distal, one premedian, one postmedian, the base color here pale greenish yellow, external face with two more or less distinct oblique bands, dorsal face with the bars of the internal face continued more or less distinctly upon it, ventral face dull yellowish with a distinct preapical black band and occasionally ( 9 type) a median one is more or less distinctly indi- cated; caudal tibiae glaucous, cream colored proximad with the gen- icular section blackish on the internal face, spines with their apical halves black; caudal tarsi pinkish ochraceous.

Measurements.

Length of body 20.5 mm. 27.0 mm.

Length of pronotum 4.0 " 5.5 '^

Length of tegmen 21.5 " 29.0 ''

Length of caudal femur 11.5 " 15.0 "

A series of five male and three female paratypes have also been examined. These exhibit a slight amount of variation in size and an appreciable amount of difference in the intensity of the depth and size of the tegminal color blotches and' in the intensity of the femoral bars. The wing bar is variable in intensity, but not in position or extent, and the general pale color varies only in two lines, i.e., one toward a more pinkish type, the other toward a more distinctly ochra- ceous shade. The dorsal section of the frontal costa is distinctly sulcate in the majority of the paratypic males, but this is not nearly so apparent in the females. In one of the few specimens in which a median blackish s'pot is present on the ventral sulcus of the caudal femora it extends distinctly toAvard the base. Trimeroiropis laticincta Saussute.

One female. July 25.

This specimen has the left tegmen considerably aborted, its length being but three-fourths that of the normal right one.

Trimerotropis vinculata Scudder.

Ten males, fourteen females. Several dated July 25, remainder not dated.

One specimen has the head, thorax and abdomen hoary, while the majority of the series are slightly darker and more contrasted in coloration than the usual type, the markings being blackish brown.

Cirootettix carolinianus (Thomas). Three males, one female. July 25. These specimens are similar in size to a pair from Soda Springs,

1910.] NATURAL SCIENCES OF PHILADELPHIA. 17

Idaho. In two of the males which are spread the wings are without infuscation except along the radiate veins.

TETTIGONID^. Idiostatus variegata Caudell.

Two females.

The type material of this species consisted of a single female taken at Pocatello, Idaho, which remained unique until the present time. The measurements of the caudal femora and ovipositor of the Spring- field specimens are as follows:

Length of caudal femora 19.5 mm. 22.5 mm.

Length of ovipositor 18.5 " 18.2 "

Stenopelmatus fasoiatus Thomas. Two females.

18 PROCEEDINGS OF THE ACADEMY OF [Jan.,

A NEW SPECIES OF ENCHYTE^ID WORM FROM THE WHITE MOUNTAINS.

BY R. SOUTHERN, B.SC.

In the late summer of 1907, after the meeting of the International Zoological Congress at Boston, Dr. Scharff visited the White Moun- tains in New Hampshire. He informs me that earthworms were very rarely met with in the forests at elevations of 2,000-3,000 feet, but he succeeded in finding a few specimens of Helodrilus {Dendro- boena) ruhidus Savigny, forma typica, under the bark of trees. The typical form of this species has not yet been recorded with certainty from North America. Michaelsen, in 1900,^ doubtfully includes North America, but later^ he confines its distribution to Europe and Asia. The variety suhruhicunda (Eisen) is widely distributed over the whole Northern Hemisphere. The typical form is endemic in the British Isles, Germany, France, Switzerland, Siberia and Iceland. Its occurrence on the latter island and on the eastern side of North America is interesting with reference to theories of a former land connection between Europe and North America by way of Iceland and Greenland.^ After a close examination of the American speci- mens, I was unable to find a single character distinguishing them from the same species, which occurs commonly in Ireland.

In some damp moss, in which Dr. Scharff brought back some living slugs and newts from the White Mountains at an elevation of 2,000 feet, I found a single mature specimen of an Enchytrseid worm which appears to be new to science, and for which I propose the name Henlea scharffi sp. n.

It is 10 mm. long, and milky-white in color. The epidermis of the prostomium and first segment is covered with small glandular papillae. The clitellum is formed by a mosaic of large granular glands, and occupies the 12th segment. In the anterior ventral bundles there are 5 setae, which are approximately equal in length, slightly curved,

* Das Tierreich, Oligochoeta, 'Lief. 10, 1900, p. 490.

^ Die Geographische Verbreitung der Oligochceten, Berlin, 1903, p. 140.

' R. F. Scharff, On the Evidences of a Former Land-bridge between Northern Europe and North America, Proc. Royal Irish Academy, VoL XXVIII, B, 1909, p. 1.

1910.]

NATURAL SCIENCES OF PHILADELPHIA.

19

and widely separated at the base. The head-pore is situated between the prostomium and first segment.

The brain (fig. 1) is concave before and behind. The length exceeds the breadth, and the greatest breadth is near the posterior end. No salivary glands were observed. The coelomic corpuscles are large, flat, broadly oval to circular disks.

The intestine widens out somewhat gradually at the beginning of the 9th segment. There are no intestinal pouches. The dorsal vessel rises in the 9th segment, and the blood is colorless. Three pairs of septal glands are present in the 4th, 5th and 6th segments.

The nephridia (fig. 2) have a large anteseptal, somewhat longer than broad. The postseptal is 2 to 3 times as long, and the duct,

Fig. 1. Henleascharfflsp. n. The brain.

Fig, 2. The nephridium.

Fig. 3. The spermatheca.

Fig. 4, The spermatheca seen through the body of the worm.

which equals the postseptal in length, rises from the anterior end. The spermathecse, which lie in the 5th segment, are long and slender, showing no differentiation into duct and ampulla (figs. 3 and 4). The opening to the exterior is surrounded by a large rosette of glands. Fig. 4 shows this from the inside.

This description is very inadquate, owing to the lack of material, but sufficient was seen to differentiate this form from all other species of the genus. H. scharffi is characterized by the structure of the ne- phridia and spermathecse, the number of setse, the place of origin of the dorsal vessel, and the absence of salivary glands and intestinal pouches.

This species falls into that somewhat unsatisfactory section of the genus which is characterized by the absence of intestinal pouches. This group includes :

1. Henlea dicksoni (Eisen).

20 PROCEEDINGS OF THE ACADEMY OF [Jan.,

2. H. rosai Bretscher.

3. H. pratorum Br.

4. H. sulcata Br.

5. H. lefroyi Beddard.

6. H. dorsalis Br.

7. H. rhcetica Br.

8. H. stolli Br.

None of these species have yet been recorded from North America. They may be separated as follows :

1. Salivary glands \ ES'::::::::::::::;:;::::::::::::^

2. No sharp distinction between oesophagus and intestine H. lefroyi.

Very sharp distinction between oesophagus and intestine 3.

3. Nephridial duct rises at the front end of the postseptal..../f. dicksoni. Nephridial duct rises at the back end of the postseptal 4.

4. Dorsal vessel rises in the 8th segment H. rosai.

Dorsal vessel rises in the 7th segment 5.

5. Nephridia w^ith broad anteseptal H. pratorum.

Nephridia with small anteseptal H. sulcata.

6. Swelling of gut in the 8th segment 7.

No swelling of gut in the 8th segment 8.

7. Setse of anterior ventral bundles 4-6 H. dorsalis.

Setae of anterior ventral bundles 6-8 H. rhoetica.

8. Spermathecse uniform in width; dorsal vessel rising in the

9th segment ..H. scharffi.

Spermathecae differentiated into duct and ampulla; dorsal

vessel rising in the 8th segment H. stolli.

Members of this genus are characterized by the sudden change in diameter of the gut, where the oesophagus passes into the middle intestine, and by the frequent presence at this point of intestinal outgrowths or pouches. In H. scharffi these pouches are absent and the change in diameter is gradual, and is spread over half a seg- ment. In this feature it bears some resemblance to the species H. lefroyi, described by Beddard* from India. In the latter species Beddard working on preserved material found that the oesophagus passed without any abrupt change in dimensions into the middle gut. The two species also resemble each other in being without the intestinal pouches. The genus Henlea includes a somewhat heterogenous assembly of species, and will probably be found to contain several distinct generic types. However, the present species may be placed provisionally in this genus.

The type-specimen is preserved in the Irish National Museum, Dublin. '

* Proc. Zool. Soc. London, 1905, II, pp. 61-64.

1910.] NATURAL SCIENCES OF PHILADELPHIA. 21

VARIATION OF POLYGYRA ALBOLABRIS IN MICHIGAN. BY BRYANT WALKER.

Polygyra albolabris Say is not only the largest, but one of the most abundant and widely distributed species of the genus. It inhabits the whole of the Eastern States and Canada, ranging north to the Saskatchewan, south to Florida and west to Nebraska, Kansas and Texas. It may be fairly said to be the characteristic land snail of the region.

In view of the enormous extent of territory which it occupies, and the very diverse environmental conditions to which it is subjected, it would naturally be expected to show a very considerable range of variation. This is true particularly in the Southern States, where in the southeast two well-marked varieties {major Binn. and fusco- labris Pils.) have been developed, and in the southwest a third