536 Coleopterological Notices^ V. 



and two small subbasal denticles ; posterior with four teeth, of which the one 

 nearest the base is much the smallest. Length (median line of pronotum and 

 elytra) 9.0 mm. ; width 7.8 mm. 



Arizona (Sta. Rita Mts.). Mr. Wickham. 



Although allied to texanus and grosHus, this species is distinct in 

 several important characters. It is much bronder than iexanus, and 

 grossus differs radically in the disposition and extent of the punc- 

 tured areas of the pygidium and propygidium. Judging by the 

 description and figures, it seems impossible to consider texanus and 

 grossus identical, as surmised by Dr. LeConte ; nor is the habitat 

 of texanus necessarily open to doubt ; texanus is not mentioned at 

 all by Mr. Lewis in treating of the Mexican species. 



O. vitreolucens.— Broadly oval, excessively finely punctulate through- 

 out, the punctures especially evident and closer on the elytra toward the 

 scutellum. Head broadly impressed along the middle throughout the length, 

 finely, closely punctate, the punctures becoming stronger at base ; marginal 

 stria only present at the sides along the eyes ; antennae with the club piceous. 

 Prothorax nearly twice as wide as long, the apical angles distant by scarcely 

 more than two-filths of the basal width ; base oblique but scarcely sinuate 

 laterally ; sides oblique, nearly straight, rounded anteriorly, not distinctly 

 sinuate near the middle ; marginal stria evident only near the apical angles ; 

 lateral stria not quite entire, very close to the edge, deep near the apical 

 angles ; disk strongly, densely punctate near the lateral stria, the punctured 

 area becoming narrower and evanescent to the base, broadest at apex ; ante- 

 scutellar puncture small. Scutellum equilateral, not deeply impressed. Elytra 

 one-half longer, and, before the middle, distinctly wider than the prothorax ; 

 striae very fine ; flanks with a strong sigmoid stria from the humeri extending 

 unbroken along the apex to the suture ; oblique humeral stria straight ; sub- 

 humeral strongly arcuate, not extending to the middle and approaching close 

 to the marginal at apex : first dorsal subentire ; second nearly entire, abbre- 

 viated at base and consisting of an uneven series of punctures toward apex ; 

 third beginning at the basal margin, not attaining the middle. Prosternmn 

 with a short stria before each coxa, feebly dilated and broadly rounded behind, 

 the apical lobe broadly rounded ; raesosternum short, broadly, roundly sinu- 

 ate, the transverse stria very widely interrupted. Anterior and posterior 

 tibiae 4-dentate, the intermediate 5-dentate. Length (median line of protho- 

 rax and elytra) 70 mm. ; width 6.0 mm. 



Southern Florida. Mr. Jiilich, 



This species has been identified as klugi Mars., but the latter is 

 undoubtedly different, although allied in having a transverse mar- 

 ginal stria at the apex of the elytra. In klugi the frontal stria is 

 entire and semi-hexagonal, and the posterior tibi&e are 3-dentate 

 externally, while in the present species the frontal stria is only 



