Male Genital Armature of the Dermaptera. Part II. 539 



being more gradually narrowed towards the tip. On these grounds, 

 a new genus might be made for its reception, but I prefer to avoid 

 erecting new genera unless compelled. 



The preputial sacks have densely denticulate pads in several 

 species, e.g. A. isomorpha, A. hottentotta, A. vicina Burr, A. turgida 

 Burr, and A. marginalis Dohrn. They appear to be unarmed in 

 A. Imta Gerst. 



Another species which I range here with some doubt is 

 A. picea Bor. This species has the abdomen rather strongly 

 dilated posteriorly, which led Borelli to place it in the old genus 

 Gonolabis ; I am glad, however, to remove it here, as its place 

 seems more natural in a mainly Ethiopian genus, and Gonolabis 

 can then be retained for Oriental species (PI. XI, figs. 8-14). 



Genus Epilabis g. n. 



Elytra rudimentaria, ad suturum attingentia ; abdomen pone 

 medium dilatatum ; sternum typicum ; metaparameres sat longi, 

 haud angustati, margine externo recto, interno undulato, apice 

 late rotundati. 



Elytra rudimentary, but meeting at the suture ; abdomen 

 moderately dilated just beyond the middle ; sternum typical ; 

 metaparameres rather broad, but not narrowed towards the tips, 

 the outer margin straight, the inner margin undulate, the tips 

 broadly rounded ; preputial sacks with small chitinous indurations ; 

 a fine virga sometimes discernible ; forceps subremote. 



Type. — Epilahis penicillata Bor. 



Range. — Southern India and Ceylon. 



This genus removes from the old Ettborellia two South Indian 

 species, E. penicillata Bor., which is characterized by a small tuft 

 of bristles at the apex of the ninth sternite of the male, and 

 E. sisera * Burr, which is characterized by a remarkable deep 

 cavity in the middle of the head capsule ; the latter species is 

 much larger and more powerful than the former. 



I am faced with a peculiar difficulty in this case. I have only 

 seen two specimens of E. sisera, taken together in the Anamalai 

 Mountains by Mr. T. B. Fletcher, who kindly sent them to me. 

 Externally the two individuals are indistinguishable, but the 

 metaparameres are not alike ; in one, they closely resemble those 

 of E. penicillata, of which I have several mounts. The other 

 specimen, however, rather recalls the type seen in Gelotolabis ; 

 the figure shows the difference of outline ; the convexity of the 

 inner margin, which is so striking a feature of the type form, is 



* Judges, iv. 21. My regretted friend, the late R. Shelford, suggests this very- 

 appropriate name. 



2 p 2 



