418 PERCY SLADEN TRUST EXPEDITION 
6b. Rostrum of ¢ abruptly bent and with lower apical portion shovel- 
shaped ; elytra with two small patches of scales, and transversely 
tumid before the middle, in $; anterior coxee more widely separated 
flexirostris. 
6%. All the femora with a more or less distinct tooth. 
c’. Body long, cylindrical, ferruginous or brown above, usually mfuscate 
or black along the sides ; rostrum of ¢ stout, of ? slender. 
a. Vestiture short and wholly decumbent. 
a’. Vestiture fine. 
a’. Rostrum almost straight in both sexes... ... cylindricus. 
b’. Rostrum strongly curved in 3 ie ae ... parallelus. 
6°. Vestiture coarse; rostrum feebly curved in g ... mgrolimbatus. 
b°. Vestiture very long, erect, and setiform towards apex... albosetosus. 
d‘. Body moderately elongate, black, vestiture coarse and decumbent ; 
rostrum very stout in ¢, comparatively stout in  ...fortirostris. 
e'. Body less elongate, the elytra in part ferruginous, vestiture consisting 
of intermixed adpressed scales and erect setze ; rostrum slender in 
both sexes. 
c. Prothorax moderately rounded at sides; elytra longer and less 
convex, the setz longer : ue --- duplovestitus. 
d’. Prothorax strongly rounded at eee elytra shorter and more 
convex, the setz short ... ae ... praslinensis. 
Ce. 
All the femora unarmed; rostrum of 2 stout, of 2 slender. 
fi. Prothorax feebly constricted anteriorly; body oblong or elongate, 
black : species small. 
e. Vestiture of upper surface decumbent, moderately coarse. 
ce. Rostrum of g (seen laterally) depressed above and arcuate beneath, 
that of ? opaque: ... 506 ... depressirostris. 
d°®. Rostrum of ¢ (seen laterally) ‘eae above and beneath, thus 
appearing strongly sinuate, that of 9 shining  fovewentris. 
Rostrum of g gibbous above, that of 2 opaque --- CUrvupes. 
f*. Rostrum of ¢ flattened or feebly curved above, that of 9 opaque. 
‘. Eyes not prominent; elytra broader than prothorax symplex. 
Gh 
d’. Eyes rather prominent; elytra not wider than prothorax: 
eé 
species minute ae sao | UMS: 
f°. Vestiture of upper surface wanting ody o opaque aoe and beneath ; 
elytra broad, convex w+ peropacus. 
4 
g'. Prothorax strongly constricted Acuity: ood abloners in great part 
ferruginous ; vestiture very coarse, decumbent. 
g. Rostrum of g gibbous above... = ... gibbirostris. 
h’. Rostrum of ¢ not gibbous above, Filial eed beneath. 
g’. Prothorax and elytra fasciate ue Bs ... stricticollis. 
h’. Prothorax and elytra not fasciate ... sas ... stevensonie. 
b°. Wings rudimentary or wanting : species small. 
