66 MEMOIRS ON THE COLEOPTERA 



from a European dealer under the name Epectinaspis mexicana 

 Burm. 



There are certain facts and inferences tending to show that the 

 tropical American genera in the vicinity of Strigoderma and Epec- 

 tinaspis, are greatly confused and need revision. For example, in 

 Phyllopertha tolucana and the above described Epectinaspis gracili- 

 pes, as well probably as mexicana, the mes-epimera display no 

 tendency to ascend before the humeri, whereas the other three 

 species, here assigned doubtfully to Epectinaspis, have distinctly 

 ascending mes-epimera, as recorded likewise by Bates of several 

 species, such as moreletiana Bl., which he also places under Epec- 

 tinaspis. The peculiar inflated form of the clypeus, so strikingly 

 developed in gracilipes, I cannot find described by Bates as pertain- 

 ing to any of the Central American Anomalini. In the notably 

 slender hind legs of both sexes, Phyllopertha tolucana and Epecti- 

 naspis gracilipes agree, but they do not agree at all in the form of 

 the clypeus or in intermesocoxal structure, this being tuberculate in 

 the former but depressed in the latter; we therefore have here two 

 undescribed genera. Then the true Epectinaspis, as represented 

 by mexicana, which appears to be similar to gracilipes in general 

 organization but with very stout hind legs, forms another generic 

 type. Again, we have forms with ascending mes-epimera and 

 inflated clypeus, like the three above placed in Epectinaspis, and, 

 finally, the aberrant forms placed in Strigoderma by Bates, which 

 will necessitate the definition of two or three more genera. It is 

 impossible for me to investigate this intricate subject further, 

 because of deficiency of material. 



Callirhinus Blanch. 



The following species differs from metallescens Bl., in its smaller 

 size and in coloration. The narrowed reflexed clypeus is very dis- 

 tinctive. The numerous derivatives were not worked out very 

 thoroughly by Mr. Bates, who merely gave the outlines of certain 

 color variations; there are however, without much doubt, some 

 true species among them. 



Form elongate-oval, convex, strongly shining, black throughout beneath, 

 with feeble greenish lustre, the legs piceous to black, all the tibiae 

 paler and testaceous; upper surface glabrous, the lower with abun- 

 dant long whitish hairs, rather dense on the sterna; head small, 



