PROCEEDINGS ENTOMOLOGICAL SOCIETY OF WASHINGTON. Volume VII, 1 9O5. (Meetings of October 6, 1904, to October 5, 1905. WASHINGTON, D. C. FutJislneci by the Society. 1905.
DATES OF ISSUE OF THE PARTS OF VOLUME VII No. i (pp. 1-64), February 9, 1905. Nos. 2-3 (pp. 65-152), January 10, 1906. No. 4 (pp. 153-202), March 9, 1906. Publication Committee for Volume VII. ROLLA P. CURRIE, E. A. SCHWARZ, E. S. G. TlTUS. WM. H. ASHMEAD, O. HEIDEMANN, AUGUST BUSCK, H. S. BARBER,
PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON. Volume VII, No. 1. JANUARY, 1905. (Meetings of October 6, 1904, to December i, 1904.) Fuit>lihedL Quarterly by thxe Society. WASHINGTON, D. C. 1905.
PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON. Published quarterly by the Society at 1238-1240 Pennsylvania Avenue. N.W., Washington, D. C. Terms for subscription, $2.00 per annum, single numbers 60 cents. Address all subscriptions to the Corresponding Secretary, Mr. Frank Benton, care U. S. Department of Agriculture, Washington, D. C. PRICE OF PROCEEDINGS AND SEPARATES. Vols. I-V, each $3 oo Vol. VI 2 oo ARACHNIDA Arachnids from Cocos Island. By Nathan Banks. 1905. 4 pp., 3 figs 10 An alleged parasitic Tyroglyphid. By Nathan Banks. 1905. 3PP- 3 fi g 10 COLEOPTERA Note on Thaumatoglossa (Axinocerus) americana Jayne. By Herbert S. Barber. 1905. i p., i fig 5 On the species of Sphenophorus related to pertinax Ol., with descriptions of related forms. By F. H. Chittenden. 1905. i5pp-ifig 2 5 DIPTERA Our present knowledge of North American Corethrid larvae. By Harrison G. Dyar. 1905. 4 pp., i fig 10 Remarks on genitalic genera in the Culicidae. By Harrison G. Dyar. 1905. 8 pp., i fig 15 Description of a new Anasa from North America. HEMIPTERA By Otto Heidemann. 1905. 2 pp 5 LEPIDOPTERA New North American Lepidoptera and synonymical notes. By Harrison G. Dyar. 1905. upp 15 ODONATA Dragonflies from the Kootenay District of British Columbia. By Rolla P. Currie. 1905. 5 pp 10 E. A. GENERAL The insect-catching grass of Cuba. By Schwarz. 1905. 5 pp., i pi 10 Any of these, or separates from the five preceding numbers, sent, postpaid, upon receipt of price advertised. Address will be FRANK BENTON, Corresponding Secretary, Care U. S. Department of Agriculture, Washington, D. C.
20 ENTOMOLOGICAL SOCIETY Sympetrum semicinctum (Say). Kaslo, August 6 (i $), August 7 (i ct)- [Sympetrum costiferum (Uhler). Wellington, September 2 (Dyar : [Sympetrum scoticum (Donovan). i $ ).] Banff, Alberta (N. B. Sanson: i teneral o n, Libellula quadrimaculata Linnaeus. i adult d\ i $).] Kaslo, May 29 (Dyar: i$), June 9 (i tf), June IJ > Mirror Lake, 1,670 feet, and Fletcher's Ranch, 2,800 feet (21 dv, 5 $ 9, 2 pairs m coitu), June 14 (2 ctct), June 16 (i $), June 18 (i ct, i $), July 2 (i tf). The concluding paper was by Mr. Banks, and entitled : ARACHNIDS FROM COCOS ISLAND. BY NATHAN BANKS. Cocos Island, situated in the Pacific Ocean some distance off the west coast of Mexico, has been rarely visited by naturalists. The only spider previously recorded from the island is Argyroepeira nigriventris Keys., which was taken by the Hopkins- Stanford Galapagos Expedition. A few years ago Dr. Paul Biolley of San Jose, Costa Rica, visited the island, and several papers have been published on the results of his trip. The Arachnida were sent to me for examination, and although few containjone or two interesting things. The most important is a Phalangid representing a new genus. There were eight species in the collection, six spiders, and two Phalangids. The types are in the collection of the writer. ARANEIDA. Gasteracantha hexacantha Fabricius. Several specimens of the usual type. This is a widely distributed species in the tropics. Gasteracantha biolleyi, new species. Cephalothorax black; legs and sternum black; abdomen yellow, with black spines and marks; a band connecting the larger lateral spines, an oblong spot near base of anterior spines, and a crescent each side in front; from the black band there is a mark extending to the posterior spines; all the sigillae are on these black marks. The venter is black, with many small yellowish spots. In shape it is much like G. cancriformis,
OF WASHINGTON. 21 but the posterior lateral spines are larger and more recurved than in that species. FIG. 7. Giisteracantlia biolleyi. Two specimens from Cocos Island collected by Biolley. Leucauge argyra Walckenaer. A few specimens of this common tropical spider. Dr. Paul Leucauge nigriventris Keyserling. Taken by the Hopkins-Stanford Galapagos Expedition. It occurs also in northern South America and in the Galapagos Islands. Theridium species. A few specimens of a small species, with a short yellow abdomen and a black cephalo thorax. it is new. Ctenus species. One immature specimen. Lycosa species. Several young specimens. Quite possibly PHALANGIDA. Pellobunus, new genus. Near Sterrhosoma Thorell, but separated therefrom by the slender legs, with fewer tarsal joints, and fewer spines on tibia of palpus, and by absence of claw to tarsus I.
22 ENTOMOLOG ICAL SOCIETY Type: the following species : Pellobunus insularis, new species. Body and mandibles reddish ; palpi and legs yellowish ; the latter banded with black on patellae, tibiae, and metatarsi; one at apex of femur, one at apex of patella, three on tibia (one at base, one beyond middle, and one at the tip), two on metatarsus (one near base, and one near the tip); sometimes, also, bands on tarsi. Two ocelli separated by a broad, rounded tubercle; mandibles large, but not greatly swollen. Legs all slender, with 25S3GH^S^^3> FIG 4 Pellobunus insul.ris : a, palpus; b, tarsus III; c, tarsus I ; d, coxa IV and base of abdomen. rows of short bristles; no claw to leg I ; tarsus I with 5 joints; II with 6 joints; III and IV with 4 joints each. Palpus rather slender, two spines, or rather tubercles tipped with bristles, on each lower edge, and a hook at base on outer edge ; two similar bristles on each lower edge of metatarsus, the apical claw nearly as long as last joint. Abdomen with last four segments free; the dorsum with many transverse rows of short curved bristles; similar bristles on the venter. Length 3 mm. One specimen from Cocos Island, collected by Biolley. Cynorta insularis, new species. Dr. Paul Body rich red-brown, a yellow spot each side over coxae II, four pairs of small spots in diverging rows from eyes to posterior margin of dorsal shield, and a larger yellowish spot at each outer apical corner of dorsal shield ; legs and palpi yellowish. Basal joint of mandibles roughened above, and tuberculate on outer sides; eye-tubercle broad, low, and smooth; two erect, acute, submedian spines behind on the edge of dorsal shield; dorsal seg-
OF WASHINGTON. 23 ments with a transverse row of granules on middle, ventral segments with row near posterior margin; coxae strongly and evenly granulate; legs with rows of minute, erect bristles; tarsus I of 6 joints, the basal twice as long FIG. 5 Palpus of Cynorta insularis. as others; tarsus II of 13 joints, the basal scarcely as long as next two together; tarsus III of 6 joints, basal as long as next two together; tarsus IV of 9 joints, basal nearly as long as next three together. Length 4.5 mm. Two specimens from Cocos Island, collected by Dr. Paul Biolley. This species is related to C. quadripustulata, but without the large spots, of "smaller size, etc. DECEMBER i, 1904. The iqist regular meeting was held at the residence of Mr. Otto Heidemann, 700 Newark street, N.W., Vice- President Hopkins in the chair, and Messrs. Ashmead, Barber, Ben ton, Burke, Currie, Dyar, Heidemann, Morris, Piper, Quaintance, Schwarz, Scott, and Titus, members, and Messrs. Couden, Girault and Strauss, visitors, present. The following new members were elected: Corresponding members, Dr. W. E. Britton, Entomologist of the Connecticut Agricultural Experiment Station, New Haven, Ct., and Messrs. W. J. Phillips and G. I. Reeves, of Urbana, 111. Active members, Messrs. F. D. Couden and A. A. Girault, of the Bureau of Entomology, TL S. Department of Agriculture. Officers for the year 1905 were elected as follows: President, Mr. Nathan Banks; First Vice- President, Dr. A. D. Hopkins; Second Vice- President, Mr. Otto Heidemann; Recording Secretary, Mr. Rolla P. Currie; Corresponding Secretary, Mr. Frank Ben ton; Treasurer, Mr. J. D. Patten; additional members of the Executive Committee: Dr. H. G. Dyar, Dr. L. O. Howard and Mr. C. L. Marlatt.