STUDIES ON SOME DERMAPTERA ,PRESENT IN THE AMERICAN MUSEUM OF NATURAL HISTORY, NEW YORK

The present report is based upon a small collection of Dermaptera from Pakistan, India, Burma, Philippine Islands and New Guinea comprising 17 species '(including 3 spp up to generic level which are I represented by females only) under 16 genera of which one species each belonging to genera Anisolabis Fieber and Paratimomenus Steinmann, from New Guinea are described as new to science. The material from New Guinea was collected by 4th, 5th and 6th Archibold Expeditions to the area organised by the American Museum of Natural History, New York (U. S. A.) during the years 1953, 1956 and 1957, respectively. .


Records oj the Zoological Survey of t na~Q,
Remarks: Previously recorded from Solomon Islands in New Guinea area.

Euborellia annulipes (Lucas)
Forflcesila o,1't1tulipes Lucas, 1847, Annls. Soc. ent. Fr., 15 : 84. Material examined: INDIA Head longer than broad, smooth, hind margin emarginate in middle, frons convex, sutures faintly marked. Eyes shorter than genae in length. Antennae partly broken (2 segments remaining on the right and 7 on the left but strongly crushed), basal segment stout, gently expanded apically; 2nd small, almost transverse; 3rd long and slender ; 4th slightly shorter than preceding; 5th almost equal to 3rd j 6th onwards gradually increasing in length and each gently expanded apically. Pronotum slightly broader than long, gently widened posteriorly, sides straight, feebly reflexed, hind margin rounded, prozona raised and well differentiated from flat metazona, median sulcus faint. Elytra and wings absent. Mesonotum posteriorly truncate and metanotum broadly concave. Legs typical of the genus. Abdomen with very fine pubescence above and obscurely punctulate, gently widened posteriorly, sides <;>f segments 7th to 9th acute angled but median carina present on segments 7th and 8th only. Penultimate sternite triangular with hind margin subtruncate. Ultimate 'tergite impunctate but with faint, rough longitudinal stripes, transverse, gently narrowed posteriorly, median sulcus faint, hind margin in middle emarginate, on sides oblique. Forceps with branches contiguous and straight in basal two thirds thence strongly curved, trigonal above in basal half, afterwards depressed and attenuate, internal margin crenulate, but smooth a little before apex. Genitalia with parameres three times longer than broad, gently narrowed apically with apices broadly obtuse and faintly incurved, virga not visible, preputical sacs with fine chitinous teeth.
~ : Agrees with male in most characters except that colour dark brownish black; penultimate sternite obtuse posteriorly and forceps simple and straight. Remarks; With Steinmann's (1979) key to the species belonging to the genus Anisolabis, from New Guinea, the described species runs down close to A. perissa Gunther, but differs in having the pronotum transverse (vs. as long as broad in A. perissa); penultimate sternite subtruncate posteriorly (vs. emarginate in middle posteriorly) and genitalia with both distal iobes flexed forward and parameres comparatively broader (vs. on~ of the distal lobe flexed backwards and parameres comparatively narrower). From A. maritima Bonelli,· it differs by the shape of penultimate sternite and parameres and by the absence of virga.

Cbelisoches morio (Fabricius)
Head only slightly longer than broad, smooth, frons and occiput raised, sutures fine but distinct, hind margin freebly emarginate in middle. Eyes small, about half as long as the post-ocular length. Antennae partly broken (3 segments remaining on right 'side and 5 on the left), 1st stout, gently narrowed basally, longer than combined length of 2nd and 3rd; 2nd small, about as long as broad; 3rd onwards segments gradually increasing in length, long Records of the Zoological Survey oj 1 ndiG and slender. Pronotum smooth, quadrat, slightly wider than long, anteriorly as wide as head, sides almost depressed, feebly convex, hind margin rounded, median sulcus faint, prO'Zona raised and well demarcated from flat metazona. Pro sternum longer than broad; ~eso·stemum about as long as broad with hind margin rounded; metasternum transverse, hind margin between hind coxae narrow and truncate posteriorly. Legs normal, hind metatarsus almost equal to protarsus, 2nd segment lobed with hind margin entire, clad with fine pubescence on underside; femora compressed, apically smooth above, not sulcate. Elytra and wings well developed, smooth. Abdomen spindle shaped, convex, tergites smooth, sides of segments smooth, convex. Penultimate sternite rounded posteriorly. Ultimate tergite transverse, smooth, convex above, sloping backwards, narrowed posteriorly with hind margin trisinuate, faintly tumid above the . bases of forceps. Forceps stout, depressed in basal one third, internally strongly serrated, dorsally with an oblong depression, afterwards branches gently raised, tapering, compressed and strongly curved enclosing an oval space, armed above with a sharp vertical, posteriorly directed tooth at a little before middle. Pygidium scarcely visible from above, obtuse. 'Genitalia with parameres flat, narrowed apically; virga stout. Remarks: The described species can be easily separated from the other two known species of the genus viz., P. flavocapitatu8 (Shiraki) from Formosa and p. nathani (Srivastava) from India by following key based on males only. 1 (~). Elytm brownish black with an, irregula.r yellow stripe in middle; pronotum trans" verse; forceps shorter in being about one third of body in length, dilated in basa.l one third with internal margin serrated.
2 (I). Elytra unicolourous; pronctum not transverse; forceps longer in being only slightly shorter than body in length, cylindrical, often armed with dorsal tooth or provided with minute teeth internally.