COLEOPTERA. 
497 
Prothorax cylindrical * i 12. StheniaSf Lap. 
Prothorax broader than head. 
Antennae with basal 5 joints incrassate .... 13. JDi/mascus, g. n. 
Antennae setaceous or linear. 
Scape very robust, rugosely punctured .... 14. j^tholopus, g. h. 
Scape of moderate size or small. 
Terminal joints of antennae sliort, obsoletely articulated. 
Eyes large, c.xtending to base of mandibles. 
15. Phesntes, g. n. 
Eyes moderate or small. 
Pro- and niesosterna declivous .... IG. Apomecyna (Serv.). 
Ih’o- and niesosterna elevated. 
Eyes Completely divided. 
Third and fourth joints of antennae equal. ' 
17. Etaxahs, g. n. 
Third joint much longer than fourth. 
18. Scsiosa, g. n. 
Eyes not divided 19. Cohria, g. n. 
Terminal joints of antennae longer, and not obsoletely articu- 
lated. 
Antennae linear 
j glabrous . 20. Meximiaj g. n. 
I fringed beneath. ... 21. Gemylm, g. n. 
Antennae setaceous, robust, third and fourth joints curved and 
thickened to apex. 
Body compressed 22. 
Body depressed 23. 
Antennae setaceous, slender. 
Tibiae not longer than their tarsi. 
Elytra short, convex 24. 
Elytra depressed and elongate. . . . 25. 
Tibiae longer than their tarsi. 
Scape cylindrical 2G. 
Scape oblongo-pyriform 27. 
Scape oblong-ovate 28. 
Vramcihay Blanch. 
Stcrilca, g. n. 
Eopica, Pasc. 
Syhra, g. n. 
Bityle,g.\\. 
Pithodia, g. n. 
Mynonoma, g. n. 
Therippiay g. n., Pasc. 1. c. p. 107, note. Allied to Cacia ; antennae shorter 
than body, with the first and third joints nearly equal to fourth ; mesoster- 
mim broad, nearly flat, horizontally produced in front. Sp. T. decorata, 
sp. n., Pasc. /. c. p. 107, note, from Ceylon. 
3tnemca, g. n., Pascoe, 1. c. p. 114. Allied to Ipocreyycs (Pasc., see Becord, 
1804, p. 427) ; mandibles elongate, antennae with the first joint short, much 
produced and cicatricose at apex. Sp. M. pKalcraliiy sp. n., Pasc. he. p. 115, 
pi. 7. fig. 8, from Sarawak. 
Eissosira, g. n., Pascoe, h c. p. 124, note. Allied to Ayelasta ) third joint 
of antennae longer than scape ; prothorax suboblong, cylindric, transversely 
impressed in front; legs nearly equal. Type Aydasta catenata (Pasc.). 
Helixoia, g. n., Pascoe, 1. e. p. 124, note. Allied to Aydasta \ third joint 
of antennae much longer than scape; prothorax small, not wider behind; 
mesosternum dentate; legs nearly equal. Type Ayelasta riqyfa (Pasc.). 
Xynenon, g. n., Pascoe, h c. p. 159, note. Allied to Sthemas ; antenniferous 
1865. [voL. II.] 2 k 
