DESCRIPTIONS OF NKW BPECIE8. 45 



gin, and the fifth feebly impressed and emarginate behind. The 

 anterior thighs are feebly sinuate beneath, but not toothed. 



Several small species in my collection are yel nondescript, but 

 the want of time prevents mo from making them known in the 



present publication. 



CRYPTOBIUM Mann. 



156. C. pimeriaiotim. Nigro-piceom, nitidturi, capite confertim 



l'ortiter punotato, thorace angustiore, latitudine longiore paroe fortiter 

 punctato, vitta latadorsali laevi, elytris thorace longioribus, fortitiT <l<-iis.- 

 punctatis, margine apieali rufescente, abdomine piceo punotato, 

 mentis postice late rufo-marginatis, ventre pedibusque rufo-piceis. Long. 

 •39. 



Valley of Colorado and Gila, California. The head is wider 

 and more thickly punctured than in C. bicolor, and the elytra 

 less coarsely but more densely punctured. In the male the 2d 



and Sd ventral segments are deeply l'oveate at the middle ; the 

 od is prolonged behind into a large obtuse process extending 

 over the 4th segment. 



157. C. sellatum. Nigrum nitidutn, capite confertim punotato, andce 

 l;evi, thorace latitudine fere sesqui longiore, parce subseriatim punctato, 

 vitta lata dorsali lsevi, elytris dense punotatis, thorace Longioribus, laete 

 runs, vitta suturali communi a basi ad dodrantem extensa, abdomine 



punctulato; ore antennisque obscure, pedibus late testaceis. Long. '35. 



Illinois, rare. The sixth ventral segment of the male is acutely 

 emarginate behind. A very beautiful and distinct species. 



15S. C. despecttmi. Valde elongatum, nigrum subnitidum, oapite 

 confertim subtilius punctato, fronte la?vi, thorace latitudine longiore, 

 nitido, minus subtiliter sat crebre punctato, vitta dorsali Isevi angusta, 

 elytris dense punctatis, limbo apieali tenui testaceo, abdomine paroe vix 

 conspicue punctulato, antennis ]>alpi>(pie obscure rulis, pediboa flavis. 

 Long. '26. 



Louisiana; Dr. Schaum. In the male the third ventral - 

 ment is prolonged into a broad rounded process extending to the 

 middle of the fifth joint, and clothed with very lung divergent 

 hairs. 



159. C pusilluiii. Valde elongatum lineare, nigrum, capite tho- 

 racique rude sal dense punctatis, hoc vitta dorsali . -i, elytris 



fortiter punctatis, thorace subbrevioribus, abdomine subtiliter hand dense 

 punctato, ore, antennis palpi9 pedibusque fla 1 .Long. ■_". 



