272 Memoirs on the Coleoptera 



feebly impressed, more deeply toward apex, the coxae moderately separated; 

 third tarsal joint feebly dilated, the fourth and the diverging claws well 

 developed; prothorax not tubulate at apex, the scutellum short, narrowed 



at base. [Type R. uniformis nov.] Ranceoma 



15 — Body oblong, parallel and more or less stout; genera allied to Dirabius. . . 16 



Body slender, sometimes stouter in some species of Sibariops 19 



16 — Beak very short and thick, only slightly arcuate, truncate and with small 

 mandibles, separated from the head by a transverse sulcus; antennae short, 

 the funicle compact, gradually broadening outwardly, the club short, grad- 

 ually formed, with rather large basal segment; presternum flat, with small 

 apical fossa, unarmed in the male, the coxae rather well separated; legs 

 short, the straight tibiae strongly fluted; tarsi broad, the claw-joint rather 

 narrow, with moderately diverging claws; integuments subglabrous; pro- 

 thorax feebly and gradually tubulate at apex; elytra not grooved, but with 



strongly punctate striae. [Type E. curtirostris nov.] Eusomenes 



Beak very short but less thick, feebly arcuate, separated from the head by merely 

 a feeble obtuse impression; antennae, prosternum and coxae nearly similar; 

 body much smaller; elytra with moderate impunctate grooves; tibiae simply 

 punctulate, not at all fluted, the tarsi narrower. [Type P. brevirostris nov.] 



Parasomenes 

 Beak longer, thinner and cylindric; prosternum armed in the male, so far as 



known 17 



17 — Beak shorter than the prothorax, smooth, cylindric, rather strongly arcuate, 

 separated from the head by a deep sulcus; antennal scrobes strongly oblique 

 as in the two preceding, the club oval, gradually formed, with its first segment 

 less than half the mass; prosternum flat, the coxae moderately separated; 

 tibiae fluted; tarsal claws rather short and thick though widely diverging; 

 only the female known at present. [Type L. aequalis nov.].. . .Liosomenes 



Beak less abbreviated, cylindric and but feebly arcuate 18 



18 — Beak separated from the head by a distinct transverse sulcus, which is 

 bordered anteriorly by a strong tumidity; antennal scrobes only feebly 

 oblique, the club abrupt, oval, its basal segment about half the mass; pro- 

 sternum flat, the two spines in the male separated by a moderate circular 

 cavity, the coxae somewhat narrowly separated; integuments with more or 

 less sparse, simple vestiture, the elytra strongly grooved. [Type 5. subin- 



flatus nov.] Somenes 



Beak a little thicker, not swollen dorsally at base and not separated from the head 

 by any kind of depression; antennal scrobes moderately oblique, the club 

 abrupt, oval, with its basal segment fully half the mass; anterior coxae 

 moderately separated, the prosternal spines of the male very short, thick 

 and curved, separated by a small perforation; tarsi rather broad; body 

 broadly oblong, the pronotum with circumambient dense vestiture, the elytra 

 moderately grooved, the alternate intervals more or less densely clothed 



with scales. [Type D. vittata nov.] Demoda 



19 — Body glabrous, feebly sculptured and never black. Beak rather slender, 

 cylindric, feebly arcuate, not separated from the head by trace of impression ; 

 antennae moderate, the funicle gradually broader and compact distally, the 

 club thus gradually formed, oval and subequally segmented; prosternum 

 broadly, feebly canalate, not armed in the male, the coxae well separated; 

 prothorax not tubulate, the scutellum small, free, and the elytra deeply 



grooved; tarsal claws small. [Type V. piceolus nov.] .Valdenus 



Body with simple uniform sparse vestiture 20 



Body with variegated vestiture 24 



20 — Prothorax abruptly and strongly tubulate at apex. Body slender and 

 cylindric; beak short, rather thick, strongly sculptured, separated by a 



