new genera and sj)ecies of Ilalticincc. 173 



the thorax ; sides obliquely converging from the middle to 

 the apex, the latter conjointly subacutely rounded; upper 

 surface strongly and regularly punctate-striate ; inter- 

 spaces (when seen under a deep lens) minvitely granulose- 

 reticulate ; interspace next the suture impunctate. 



Chcetocnema mexicana. 



Elongato-ovata, convexa, cuprea, nitida, pedibus an- 

 tennisque palllde fulvis, harum articulis quatuor ultimis 

 piceis, femoribus posticis infuscatis ; thorace granuloso, 

 subremote punctulato ; elytris sat fortiter punctato-striatis, 

 interstitiis la3vibus. 



Long. I lin. 



Hah. — Mexico, Teapa ; collected by M. Pilate. 



Vertex and front finely granulose-reticulate, separated 

 from the eyes and lower face by a deep groove ; encarpte 

 and carina entirely obsolete ; interocular s]3ace smooth, 

 impunctate. Thorax more than one-half broader than 

 long; sides straight and parallel, anterior angles thickened, 

 obliquely truncate ; above granulose-reticulate, subremotely 

 punctulate. Elytra broader than the thorax, ovate, acutely 

 rounded at the apex, regularly punctate-striate, interspaces 

 impunctate. 



ChcBtocnema megalopoides. 



Elongata, convexa, pallide piceo-tenea, nitida, subtus 

 picea, pedibus antennisque fulvis, his extrorsum femori- 

 busque posticis pallide piceis; capite valde exserto, fortiter 

 pimctato ; thorace subcylindrico, fortiter punctato ; elytris 

 sat profunde punctato-striatis, interspatiis ad latera et ad 

 apicem convexis. 



Long. 1^ lin. 



Hah. — Australia, Rockhampton. 



Head strongly exserted, neck cylindrical; vertex and 

 front convex, strongly but not closely punctured; eyes 

 lateral, rotundate, space between the eyes swollen ; inter- 

 ocular spaces coarsely punctured ; carina oblong, not 

 extending to the anterior border of the clypeus ; labrum 

 very broad ; antenna3 three-fourths the length of the body, 

 six lower joints pale fulvous, the rest piceous. Thorax 

 scarcely twice as broad as long; sides distinctly margined, 

 slightly rounded, scarcely converging in front, hinder 

 angles rounded, the anterior produced laterally into an 

 acute tooth ; above su])cylindrical, strongly but not very 



