232 RHYNCHOPHORA. 
ce’. Elytra, at least towards the suture, punctate-striate, the 
alternate interstices with from 2-4 rows of punctures; 
the pubescence white and arranged in broad or narrow 
lines . . ~ + e e ws . . Species 8-12. 
b‘. Elytra (and the rest of the surface also) with radiato-pectinate 
scales, simple hairs, and suberect dark sete; femoral tooth 
small 2... 1 ww ee eee ee ee eee... «Species 18. 
*, Elytra with decumbent, piliform or squamiform, pubescence and 
darker setze * 
c’. Elytra each with five rows of rather large, rounded, smooth 
spaces, and for the rest closely, confusedly punctate and 
clothed with greyish pubescence: general coloration nae 
geneous. . . . . . . . rr . Species 14, 
d’. Elytra more or less distinetly seriate- punctate, with close inter- 
stitial punctuation. 
d°*, Elytra with small, irregular, smooth spaces and for the rest 
thickly greyish-pubescent: general coloration piceous. . . Species 15. 
e*, Elytra with close reddish-brown pubescence, which is here 
and there fasciculate: general coloration eneous . . . . Species 16. 
f°. Elytra with close intermixed fulvous and whitish pubescence, 
which becomes entirely white along the suture, and with 
both black and white sete: general coloration cupreous . . Species 17. 
gy’. Elytra with sparser intermixed fulvous and whitish pubes- 
cence, the sete blackish: general coloration nigro-zneous . Species 18. 
e’. Elytra distinctly punctate-striate or seriate-punctate (except 
in O. levipennis, O. crassirostris, and O. levis), with sparser, 
seriately arranged, interstitial punctuation, which is partly or 
entirely obsolete in some of the species. 
h’. Hyes well separated. 
a’. Elytra with rows of closely placed decumbent white hairs 
throughout their entire length, the alternate interstices, 
at least, bi- or tri-seriate-punctate. 
a’. Femoral tooth large. . . . . 1. 1. 2. ws «6 Species 19-25. 
6°. Femoral tooth smaller. . . . 2... . Species 26-28. 
6’. Elytra with rows of closely placed decumbent white hairs 
on the posterior half ; femoral tooth large. . . Species 29. 
". Elytra with rows of less closely placed, decumbent, bristly 
white hairs arranged in a single or double line throughout 
the length of each interstice ; femoral tooth triangular. | 
ce’. Femoral tooth large. . . . . 1. 1 1 we ee) «Species 80-82. 
d°. Femoral tooth smaller. . . . . . . 2. « . « Species 33, 34. 
* In some specimens of O. punamensis, O. pubescens, and O. megalops the erect bristly hairs or sete are 
almost entirely white. 
