KEY TO TRIBES OF CURCUMOMNMC. 139 



k. Antennae inserted entirely on the sides of the 

 more slender cylindrical beak, their insertion 

 concealed from above; front coxae slightly sepa- 

 rated. Tribe IV. PISSODINI, p. 178. 

 7x~A\ Antenna? inserted toward sides of the thicker, 

 more powerful beak, their insertion visible from 

 above; front coxa? contiguous. 



Tribe V. HYLOBIINI, p. 183. 



jj. Tibiae without corbels, truncate at tip; length 

 usually less than 4 mm., never over 7 mm. 



Tribe VII. EBIRHIXIXI, p. 189. 



7)7;. Eyes large, transverse, widely separated above, con- 

 tiguous beneath. Tribe VI. HORMOPINI, p. 188. 

 gg. Tarsal claws toothed; ventral segments less unequal, the 

 sutures strongly angulated at sides, the points of the 

 second segment reaching the fourth in some genera. 

 (Fig. 22, (I.) Tribe VIII. TYCHIIXI, p. 238. 

 ee. Ventral segments nearly equal, though the first may be longer 



than the others; claws more or less toothed. 

 L Thorax pedunculate (with a definite neck), i. e., strongly 

 narrowed at base; ant-like in appearance. 



Tribe IX. OTIDOCEPHALIXI, p. 247. 

 77. Thorax not pedunculate. 



m. Hind angles of thorax acute or produced; outline cunei- 

 form or broader behind. Tribe X. MAGDALINI, p. 253. 

 mm. Hind angles of thorax obtuse. 



n. Mandibular motion vertical; beak often very long and 



thin (nut-and acorn-weevils). Tribe XI. BALANINI, p. 261. 



nn. Mandibular motion horizontal; claws cleft, toothed or 



appendiculate. 



o. Ventral sutures straight; size small, seldom over 4 

 mm. in length. Tribe XII. ANTHONOMINI, p. 273. 

 oo. Ventral sutures angulate at sides. 



p. Funicle 6- or 7-jointed; pygidium covered. 



Tribe XIII. PRIOXOMERIXI, p. 322. 

 pp. Funicle 5-jointed; pygidium usually exposed. 



Tribe XIV. MECINIXI, p. 325. 

 cc. Lateral angles of first ventral segments uncovered. 



q. Form elongate, subcylindrical; elytra without acute post- 

 humeral angle; length 6 or more mm. Tribe XV. CLEOXIXI, p. 328. 

 qij. Form shorter, broad; elytra with acute post-humeral angle; 

 length less than 5 mm. Tribe XVI. STERXECHIXI, p. 344. 



67>. Humeri truncated by side pieces of mesothorax, which are visible 

 from above, protruding as rounded knobs between thorax and elytra. 

 /-. Ventral sutures wholly straight; beak shorter than head; (elytra 

 in our single species largely red.) 



Tribe XVII. L.EMOSACCIXI, p. 345. 

 rr. Ventral sutures more or less curved; beak longer than head. 



Tribe XVIII. BARINI, p. 346. 

 aa. Beak received in or upon the breast in repose; upper surface often 



very uneven. 

 s. Eyes not covered by postocular lobes in repose, very large and ap- 



