212 RHYNCHOPHORA. 
a‘, Elytra striate... . ee 
6‘. Elytra with the sutural stria atly. distinct * . 
é°, Anterior tibie only denticulate on their inner edge; scutellum trans- 
verse; elytra with a fine sutural stria only: length of body 2? mm. 
c*. Tibize not deuticulate on their inner edge. 
c‘. Anterior tibize toothed or angulate externally near the apex, as well 
as near the base, and widened for about their median third ; elytra 
with the sutural stria only distinct. 
a’. Body wholly black . . . . rere td 
6°’. Body black, the elytra rufo-testaceous . ; oo 
d‘, Anterior tibize hollowed externally, not widened in their median 
third ; head deeply, transversely suleate ; scutellum subquadrate ; 
elytra with the sutural stria only distinct . <a 
. Anterior tibize distinctly toothed near the apex ectarnally, the 
other tibize dilated and acutely dentate near the base; prothorax 
and elytra conspicuously punctate, the elytra striate . 
f’. Anterior tibiz (except in D. ornatus) not or feebly toothed near 
the apex externally ; scutellum subquadrate or transverse. 
c’. Elytra deeply striate throughout. 
a’. Suture strongly depressed . 2. 2. 6 1 8 ee 
6°. Suture feebly depressed . . 2. 1 ee ee ee 
d’. Elytra finely striate throughout. 
c’. Rostrum longer: length of body 3-43 mm. 
d°, Rostrum very short: length of body 2 mm. 
e’. 2 with the three inner striz only distinct. 
*. Body wholly black . . 
r *. Body black, the elytra with a rufous humeral patch. 
jf’. Elytra with the two inner strie only distinct ; prothorax un- 
impressed at base 2 2 se . en 
g. Elytra with the sutural stria only distinct (the others more or 
less traceable in D. nigripes) ; prothorax unimpressed at base : 
length less than 3 mm. 
g°. Body wholly black (the prothorax reddish in D. distriatus) 
M. Body black, rufous above . 
*. Body rufous, the legs and antenna black . . 
b°. Anterior femora strongly dilated at the base; elytra finely striate ; ; body 
rufescent above . . . - - 3 ws 
6‘. All the tibie rounded near the base externally ; elytra with the sutural 
stria only distinct . . . . rr ee : 
b. Anterior femora feebly denticulate, the anterior tibiz also finely denticulate 
externally towards the apex, all the tibiz angulate near the base ; prothorax 
canaliculate; elytra striate: length of body 23 mm. wots . 
c. Intermediate and posterior femora finely denticulate, all the tibiae snpulate 
near the base externally ; elytra striate: length of body 2,4,-24 mm. 
Species 1. 
Species 2. 
Species 3. 
Species 4, 5. 
Species 6. 
Species 7. 
Species 8. 
Species 9. 
Species 10. 
Species 11, 12. 
Species 13. 
Species 14. 
Species 15. 
Species 16, 
Species 17, 18. 
Species 19. 
Species 20. 
Species 21. 
Species 22. 
Species 23. 
Species 24, 2 
* Exclusive of the marginal striz, which are not visible from above. 
