ECJSTHENES. 263 



Division EUSTHENARIA. 



Eusthenina, Stdl, En. Hem. i, p. 60 (1870). 



Eusthenaria, Hon:. Tennesz. F'dzetek, xxiii, p. 340 (1900K 



Metasternum simple or elevated, never freely produced anteriorly ; 

 scutellum equilateral, narrowiug aud slightly produced at the apex 

 behind the frena, rounded or truncated at apex, less than half the 

 length of abdomen ; proiiotum not posteriorly produced, 



Sijaoj^sis of Genera. 



A. Posterior femora in male sex strongly incras- 



sated and near base lougly spined. 



a. Metasternum strongly elevated Eusthenes, p. 263. 



b. Metasternum not elevated Eurostus, p. 268. 



B. Posterior femora in male sex neither incras- 



sated nor longiy spined near base. 



a. Metasternum elevated. 



a. Second abdominal segment centrally ele- 



vated and reaching base of metasternum. 

 rtK Length of head about equal to breadth 

 betw^een eyes. 



a-. Mesosternuni with a furrowed ridge ; 

 metasternal plate narrowed an- 

 teriorly, emarginate from centre to 

 base Mattiphus, p. 269. 



b'^. Mesosternum with a distinct central 

 plate, furrowed anteriorly ; meta- 

 sternal plate with margins straight 

 from base to centre, then broadly 

 rounded to apex Origanaus, p. 271. 



b. First abdominal segment elevated and 



reaching base of metasternum. 

 b^. Head shorter than breadth between 



eyes Asiargha, p. 272. 



b. Metasternum not elevated. 



a. Posterior femora moderately tlaickened, 



posterior tibiae curved Carpona, p. 273. 



h. Posterior femora not thickened, posterior 

 tibiae straight, 

 a^. Abdominal margins straight, not 



dilated Pycanum, p. 274. 



h^. Abdominal margins ampliated, forming 



an angle ou each side Dalcantha, p. 275. 



Genus EUSTHENES. 



Eusthenes, Laporte, Ess. Hem. p. 64 (1832) ; Amy. S,- Sere. Hem, 

 p. 167 (1843) ; Stdl, Hem. Afr. i, p. 225 (1864). 



Type, E. robustus, Lepell. & Serv. 

 Bistrihution. Oriental Region and China. 



Head moderately long, the apex somewhat truncate, lateral 

 lobes much longer than central lobe, which is altogether submerged, 



