CHRYSOMELnm 109 







CRYPTOCEPHALUS VETUSTUS. 



, ft/ml nx vetustus Scudd.. Bull. U. S. Geol. Geogr. Surv. Terr., IV, 764 (1878); 

 Tcrt. Ins. N. A.. 4sr>-4,sr ( . pi. 7. figs. 2!i. :',7 (Is'.m). 



Green River, Wyoming. 



CRYPTOCEPHALITES Seudder. 



'Phis genus w;is founded by me for the fossil species here recorded, 

 which is a, peculiar form of the Tribe Cryptocephalini. 



CKYPTOCEPHALITES PUNCTATUS. 



( 'ri//>ti'i; f>/,nlit, .v jiiK'f<itiix Scudd., Contr. Caiiud. Palitont.. II. 33, pi. 2, fig. 4 (1892). 

 Similkaineen River, British Columbia. 



COLASPI8 Fabricius. 



This is an American and Polynesian -enus, with many species, less 

 than half a do/en of which inhabit the United States. A single fossil species 

 is known from Colorado. 



CoLASPIS LUT1. 

 Cnliixj,;* hit! Scudcl., Tert. rhyncli. C'ol. T. S., pi. 1, fig. 4 (18JI2). 



Head very finely rugose, with a large subcircular eye. Prothorax 

 very delicately and rather densely punctate, tapering but little, and 

 apparently nmch narrower at base than the elytra. Elytra with equidistant 

 punctured stria 3 , the punctures rather large, rather closely crowded, rather 

 deep and circular. Under surface of thorax feebly rugose, of abdomen 

 smooth. 



Length, 5 mm.; breadth, 2 mm. 



Florissant, Colorado; one specimen, No. 7670. 



CHRYSOMELA Limit.'. 



A very dominant cosmopolitan genus, with numerous North American 

 species. A single fossil American species occurs in Colorado, but in the 

 older Tertiaries of Europe there are at least nine species, found at Aix, at 

 Oeningen, and in amber; besides which two species, one of them extinct, 

 occur in the Pleistocene of Galici;i. 



