l62 CASEY 



having a transverse frontal callous band and broad thoracic sulcus but 

 with the middle tibiae of the male indeterminate, as the latter sex is 

 unknown but apparently simple, since a California male was in all 

 probability inadvertently named californica by Crotch, (Pr. Acad. 

 Phil., 1873, p. 87). In any event californica; as a species, should be 

 considered unpublished, as there is nothing written of it that could be 

 termed a description, the only decisive character being its general 

 stated resemblance to tenebrosa; but as several distinct species were 

 confused by that author under the name tenebrosa, no one of which 

 was in truth the Kirbyan species, we are unable to decide which form 

 was alluded to in the comparison and the language is consequently 

 ambiguous. I have assigned californica Cr., to crassicollis as a syn- 

 onym and have omitted sexualis Cr. (1. c.) as the few words of the 

 description do not admit of giving it a definite position among the 

 others in the above table. Its rounded fifth ventral in the female 

 shows that it is not in any way identical with the species described 

 above as crassicollis, the abdominal apex there being distinctly tri- 

 dentate, as mentioned by LeConte. My rather numerous examples 

 of the latter all have the prothorax less transverse than stated by 

 LeConte, and that author makes no allusion to the unusually elongate 

 callous spots of the elytra, which are, however, noted by Crotch as a 

 peculiarity of sexualis. It does not seem to be probable, in view of the 

 localities of crassicollis, as mentioned by LeConte, that that species 

 could be the same as the montana, of the above table, although the 

 prothorax is shorter and relatively broader than in the form here 

 identified as crassicollis. 



Dumolini was described as coming from Senegal and distinguenda 

 from the interior of Brazil, so that the failure of LeConte to identify 

 them with our species was altogether pardonable, in the absence of 

 sufficient familiarity with the general habitus of the fauna of those 

 regions to betray to him their lack of harmony with their surroundings. 

 I am by no means certain that manca Lee., is the same as hilaris but 

 accept this disposition of it on the authority of Crotch; that hilaris, in 

 any event, is the true tuberculata, of Laporte and Gory, seems to admit 

 of very little doubt, on examining the originally published figure of 

 the latter, and my description of tuberculata is taken from that of 

 hilaris as given by LeConte. The latter author states that in hilaris 

 and manca, the central thoracic callus "interrupts" the sulcus, but 



