4: PENTATOMID^. 



B. Ocelli either as far apart from eyes as from 



each other, or nearer to eyes than to each 



other. 

 \ a. Head broad, with the eyes about reach- 

 ing anterior angles of pronotum. 



a. Head sexually diverse, in the <S pro- 



duced anteriorly into two diverging 



processes Tiarocoris, p. 14. 



b. Head not sexually diverse. 



a'. Lateral lobes of the head meeting 

 in front of the central lobe. 

 «-. Head broad and transversely 



truncated in front Ponsila, p. 7. 



b^. Head broad and rounded in front. . Brachyplatys, p. 8. 

 b'. Lateral lobes of head not meeting 



in front of the central lobe Fieberisca, p. 16. 



1» b. Head broad, with the eyes almost but 

 not quite reaching anterior angles of 



pronotum Bozius, p. 37. 



^ 3 c. Head distinctly narrower than the 

 anterior angles of pronotum. 



a. Anterior margin of pronotum deeply 



concavely sinuate at insertion of head. 

 a'. Central lobe of head much shorter 



than the lateral lobes Oncylaspis, p. 7. 



b'. Lobes of head almost equal in 



length ViaExrs, p. 13. 



b. Anterior inargin of pronotum not 



deeply sinuate. 

 a'. Central lobe of head distinctly 



elevated Tropidotylus, p. 36. 



b'. Central lobe of head not elevated. 

 a^. Lateral margins of pronotum 



strongly dilated Tarichea, p. 6. 



b'. Lateral margins of pronotum 



not strongly dilated Coptosoma, p. 17. 



Genus CODRONCHUS. 



Codronchus, Dist. A. M. N. H. (7) viii, p. 233 (1901). 



Type, C. andamanensis, Dist. 



Distribution. Andaman Islands. 



Somewhat broad and moderately convex. Head large, angulate, 

 the central lobe very broad and ovate, a little shorter than the 

 lateral lobes, which are divergent and do not meet in front ; 

 lateral margins moderately concave from base to about the region 

 of the insertion of the antennae and then oblique and reflexed to 

 apex; eyes prominent; ocelli nearer to each other than to the eyes. 

 Pronotum with the lateral margins coavex, the anterior margin 

 much excavated, nearly straight at the extreme base of head ; the 

 disk prominently transversely impressed ; scutellum broad, not 

 quite reaching the apex of the abdomen, its apex slightly concave; 

 stigmata near the abdominal margin. Rostrum reaching the inter- 



