THE LEPTOCORISINAE OF THE WORLD 15 



base ; second usually distinctly shorter than third. Rostrum short, never extending beyond 

 second coxae. Lateral black line usually present but never extending beyond middle of 

 propleuron. Pronotum slightly sloping down towards head with latero-posterior tips usually 

 black. Abdomen usually pale dorsally, ventrally usually dull ochraceous. 



In o", posterior margin of seventh abdominal tergum truncated ; pygophore usually rounded ; 

 claspers short, curved medially with apices acutely pointed, never crossed ; aedeagus with 

 dorsal and ventral pairs of thecal appendages ; dorsal pair united ; single frontal conjunctival 

 appendage bifurcated at apices ; membranous appendage comparatively long with single dorsal 

 appendage, terminal appendage wanting. 



In $, posterior margin of seventh abdominal sternum medially produced, usually with a 

 median notch ; first gonocoxae elongated ; intervalvular sacs absent ; spermatheca elongated 

 with short tube coiling round neck. 



Males of Erbula can be distinguished from those of other subgenera by examining 

 the claspers which are never crossed and the females in having the posterior margin 

 of the seventh abdominal sternum with a median process which is sometimes 

 notched in the middle, but never indented, concave, or with a short median split 

 and in having the spermatheca with a short tube coiled round its neck. 



Mis-identification of Stenocoris (Erbula) southwoodi sp. n. for Stenocoris apicalis 

 (Westwood, 1842), the type of the subgenus and the request for its recognition are the 

 subjects of an application to the International Commission on Zoological Nomencla- 

 ture (Ahmad, in press). 



Key to Species 



1 Lateral black line very faintly represented, usually in the form of a black dot on the 



lateral side of collar ; pygophore elongated ; in $, posterior margin of seventh 

 abdominal sternum with a central median round projection, which has a distinct 

 median notch .......... similis (p. 23) 



- Lateral black line usually strongly represented, extending at least on to collar ; 



pygophore usually rounded ; in 9. posterior margin of seventh abdominal sternum 

 either triangular, rounded or parallel-sided, if rounded never with a distinct notch 2 



2 Claspers short, nearly reaching apex of pygophore ; in $, median projection of seventh 



abdominal sternum round, faintly striated (Text-fig. 59) . . southwoodi (p. 24) 



- Claspers long, always reaching apex of pygophore ; in 9. median projection of 



seventh abdominal sternum parallel-sided or triangular ..... 3 



3 Apex of pygophore pointed ; lateral black line never extending forward on to genae ; 



rostrum usually short, reaching second coxae ....... 4 



- Apex of pygophore medially notched ; lateral black line usually extending forward 



on to genae ; rostrum usually extending at least slightly beyond second coxae . 5 



4 Claspers broad in middle and knob-like at apices (Text-fig. 19) ; in 9. median projec- 



tion of seventh abdominal sternum parallel-sided, with a distinct median notch 

 (Text-fig. 22) ......... annulicornis (p. 16) 



- Claspers narrow in middle and acutely pointed at apices (Text-figs. 29 and 30) ; in 9. 



median projection of seventh abdominal sternum triangular (Text-fig. 31) 



distinguenda (p. 18) 



5 Claspers strongly outwardly curved (Text-figs. 37 and 38) ; in 9. median projection 



of seventh abdominal sternum triangularly produced, with round apex (Text-fig. 41) 



elegans (p. 20) 



- Claspers only curved in middle (Text-figs. 65 and 66) ; in 9. median projection of 



seventh abdominal sternum rectangular (Text-fig. 70) . . . stali (p. 28) 



