1909.] R. Shelford : Some amphibious Cockroaches. 127 



Epilampridse, live in damp places near the edge of jungle streams 

 and do not mind getting wet. It is astonishing what a large pro- 

 portion of insects can swim well if they are forced to do so, and I 

 think that in India there is a very marked tendency for members 

 of terrestrial groups of all kinds to become aquatic or amphi- 

 bious.' ' From observations in Borneo I can confirm Dr. Annandale's 

 remarks, for I have frequently seen species of Tettix (s. /.) and 

 Tryxalides take to the water when disturbed. 



I have much pleasure in naming the new species after its 

 discoverer. 



Epilampra annandalei , sp. nov. 



&. Rufo-castaneous. Vertex of head freely exposed, finely 

 dotted with fuscous ; eyes wide apart. Pronotum trapezoidal, 

 posteriorly produced obtusely, finely dotted with fuscous, smooth, 

 litid. Tegmina exceeding the apex of the abdomen, unicolorous, 

 impunctate. Wings with marginal area flavous, ulnar vein with 

 fifteen rami, four being complete. Abdomen rufo- testaceous, supra- 

 anal lamina produced, subquadrate, apex slightly emarginate, sub- 

 genital lamina rather large, produced, sHghtly asymmetrical, with 

 two slender styles. Cerci long, acuminate. Femora strongly armed : 

 front femora armed on anterior margin beneath with seven spiiies 

 succeeded distally by filiform setse ; four spines on posterior margin. 

 Formula of apical spines, ^y\, \. Posterior metatarsi very long, 

 exceeding the remaining joints in length, completely bi-serrulate 

 beneath, second tarsal joint also armed beneath ; all the pulvilli 

 minute, apical. 



Total length 20 mm. ; hngth of body 12 mm. ; length of 

 tegmina 16 mm. ; pronotum 41 mm. y. 5 mm. 



This species belongs to the group characterised by the small 

 size, impunctate pronotum and elongate metatarsi ; its nearest 

 allies are E. fervida, Walk., E. quadrinotata , W^alk., E. geminata, 

 Br., and E. flavomarginata, Shelf. The larvae cannot be referred 

 with certainty to any known species, since we are almost entirely 

 ignorant of the metamorphoses of any Blattidae, but it would be 

 unwise to describe a new species based only on immature forms, 

 and for the present they must remain without a name. 



