476 Coleopterological Notices. 



narrowly and very feebly impressed in the inid<lle toward base, the fifth seg- 

 ment with a very deep transverse parallel-sided impression at the apex. 

 Length 4.7-6.0 mm. ; width 1.9-2.7 mm. 



California (southern). 



Resembles granulatus, but differs in its much more robust and 

 rather more depressed form, larger size, sparser pronotal punctures 

 toward the middle, less acute and abrupt basal angles, much feebler 

 but more coarsely punctate elytral stria3, longer dorsal seta?, much 

 more robust and more strongh' dentate anterior tibia; of the male 

 and more robust tarsi. 



The prolongation of the apical angles of the elytra is also notice- 

 able, but to a less extent, in granulatus, and in both is more char- 

 acteristic of the female. 



Crassipes and granulatus form the nearest approach to Couibio- 

 soma, and thence to Xotibius. 



COXIBIOSOHIA n. gen. 



Body elongate, parallel, setose. Head broadly sinuate at the sides ante- 

 riorly ; epistoma broadly, angularly sinuate ; mentum small as wide as long, 

 the sides very feebly reflexed, the surface flat, densely punctate, the apex 

 inflexed ; labial palpi inserted at the sides of the very short corneous ligula, 

 their base concealed by the mentum ; maxilhe very wide at base, the palpi 

 normal. Prothorax fimbriate at the sides with very short, robust, posteriorly 

 recumbent, spiuiform setae. Seutellum very short and wide, triangular, not 

 entering at all upon the disk of the elytra. Abdomen with the fifth "segment 

 strongly inflexed in repose at least in the male. Leys moderate ; anterior 

 tibi;e not dilated. 



This genus is closely allied to Xotil)ius. The sing-le species 

 resembles Conibius in outward form, and constitutes a transition 

 from Xotibius, apparently having a greater affinity with the latter, 

 although, if it were not for the fimbriate sides of the prothorax, it 

 could be quite as easily assigned to the former. 



C. elongata Horn. — Conibius elong. : Trans. Am. Phil. Soc, XIV, p. 3.')1. 

 — Elongate, parallel, moderately convex^ shining, bright rufo-testaceous, the 

 elytra black; vestiture consisting of short, stifi", spiniform setas which are 

 distinctly visible under low power. IJecui transverse, the sides near the eyes 

 straight and parallel, the upper lobe of the latter small but broailly oval, 

 much larger than the lower lobe ; surface finely, rather sparsely punctate, the 

 punctures shallow, variolate and subscabrous ; anteuuse very robust, com- 

 pact, much shorter than the head and protliorax together, the three last joints 

 moderately dilated, joints obcouical, third much shorter than the next two, 



