182 



UrDEOMETKlD.Ti. 



Genus EOTRECHUS. 

 Eotrechus, Kirl-. E/ifontolo//ist, 1902, p. 137. 



Tj-pe, E. kalidasa, Kirk. 



Distrihution. Burma. 



This genus has been founded on the following characters : — 

 " i'acies of Gerris, Fabr., but distinguished by each tarsus being 

 terminated by two strong, curved, cijiical, arohated claws. Tibiae 

 cylindrical, not tapering." In all other respects Eotrechus is very 

 closely allied to Gerris. 



975, Eotrechus kalidasa, Kirl: Entomolo(jisf, 190 

 Dark chocolate-brown 



Fig. \2>().— Eotrechus Icuhdasa. 



Length 10 to lO^ millim. 

 Hah. Burma ; Ivarennee {Ecu). 



p. 137. 



posterior pronotal lobe castaneous, ante- 

 I'ior lobe with the lateral 

 margins and a central narrow 

 longitudinal fascia ochra- 

 ceous ; hemelytra with the 

 lateral margins and veins a 

 little paler, and with some 

 opaque, cellular, piceous 

 spots ; abdomen beneath, 

 legs and antenna? ochra- 

 ceous ; femora with their 

 apices broadly piceous ; head 

 beneath centrally piceous ; 

 rostrum ochraceous, its apex 

 piceous ; antennae with the 

 first and second joints longest 

 and subequal, third and 

 fourth a little shorter and 

 subequal; pronotum dis- 

 tinctly ridged between the 

 lateral angles, which are sub- 

 prominent and carinate, from 

 thence distinctly obliquely 

 deflected to apex, the apical 

 margin broadlv rounded. 



Genus ONYCHOTEECHUS. 



Onycliotrechus, KirTx. EntoinohxjUi , 1903, p. 44. 



Type, 0. rliexenor. Kirk. 



Distrilmtion. Oriental Region. 



The following characters have been relied on for the separation of 

 Onycliotrechus: — -'Closely allied to Gerris, and intermediate between 

 the latter and Eotrechus. It differs from the former bv the long 



