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2 
Vol. II, No. 4.]- “Notes on the Freshwater Fauna of India. ‘105 
[N.S.] 
Notes on the Freshwater Fauna of India. No. III.—An 
Indian ‘Aquatic of wet ge Beetle Larva. By N. ANnNAn- 
pate, D.Sc., C.M.Z 
Little is known of ite aquatic or semi-aquatic Orthoptera,' 
al 
which are probably not uncommon ae ropical countries, and the 
from Mala 
only records of aquatic Cockroaches I can find are from Malaya 
and Borneo. . The existence of a species of Epilampra, living in an 
Indian jungle stream, is errs a fact of some interest. 
In recorde n Cockroaches * as haying aquatic 
habits in the Siamese Malay pias It now appears that at least 
two species were included, probably both belonging to the genus 
Epilampra. One of these is in the habit of resting on logs float- 
ing in the ‘Kalattad River, and of diving when disturbed ; while 
the other haunts the roots of trees and other sunken objects at 
the edge of jungle streams in the. Patani States. In 1901, Shel- 
ford’ published a me on two species, an Hpilampra and a "Pane- 
thiid, from the base. waterfall on Mount Matang in Sarawak, 
both species Se ure. 
_.On March .4th last, while turning over stones in a small 
inne stream on a hill near. ees in eae ee eer i 
; mpra. When sleek th a large jar jar of water, it swam very 
ae using all six legs, to Be side, which it attempted to mount. 
‘As was the case with the ‘specimens observed by Shelford in 
Borneo, the tip of the abdomen, which was arched pmo was 
from the thorax. The: Cockroach, finding it ‘ceattile to climb 
up-the glass, attempted to dive beneath it. In so doing, however, 
the Insect was impeded by the air which had become entangled at 
the base of its: legs and: between them .and the. antenne, which 
awere stretched backwards below the belly. : Appernty in’ order 
FS “y Acridiids of the genus Scelymena, Bybee are semi eau: have been re- 
corded from Java, Ce eylon and Burma; many of the Indian and Malayan 
representatives of this group can swim awl on the surface Scala i ‘one 
tention to a Bornean form (Cotyl osoma) which he believed to be. ac ually pro- 
vided with wills "bint Sharp (in Cambr ridge Nat. Hist. V., p. 273 1895) expresses 
doubt as to the function mo the stru tunthres thus’ interpreted. Miall and Gilson 
(Trans. Entom..Soc. 1902, pi 284) have described an aquatic cricket (Hydro 
pedeticus) from Fiji; an Tndian Tridactylus, common among reeds and sedges in 
Calcutta, jumps in ater when disturbed and swims on the surface ; 
Msi 5 rn of the latter gen are known to leap on the surface film 
mologist’s Re ore X slp fo e 
s Resort Brit. Association, ‘Got, 
