102 TERTIARY COLEOPTERA OF NORTH AMERICA. 



Lytta (Bsculapii, but the structure of the autennse forbids its reference to 

 that genus. 



Length of body, as extended, 13 mm.; of head, 1.5 mm.; breadth of 

 head, 1.8 mm.; length of antennje, 6 mm.; of elytra, 6 mm.; breadth of 

 elytra in middle, 1.2 mm.; of abdomen, 3.5 mm.; length of hind femora, 

 2.6 mm.; breadth of same, 0.5 mm.; length of hind tibiae, 3 mm.; breadth 

 of same, 0.23 mm. 



Florissant, Colorado. 



Twenty fossil species of Ptinidse have been found, belonging to ten 

 genera, one of them regarded as extinct. On the other hand, Forster has 

 found in the Oligocene of Alsatia what he regards as an existing species of 

 Dorcatoma. No Pleistocene species are known. 



SITODREPA Thomson. 



A north temperate genus, with a single North American species. A 

 fossil species occurs in Wyoming. 



SiTODREPA DEFUNCTA. 



SitoOrepa defuncta Scudd., Bull. U. S. Geol. Geogr. Surv. Terr., II, 82 (1876); 

 Tert. Ins. N. A., 493 (1890). 



Green River, Wyoming. 



ANOBIUM Fabricius. 



A widespread genus, mainly north temperate, of which a couple of 

 species occur in North America. Half a dozen species are known or have 

 been recognized, two in Europe at Oeningen and the Isle of Wight, the 

 others in Wyoming and Colorado, two of those from Wyoming doubtfully. 



AnOBIUM % OVALE. 



Anobmm ? ovale Scudd., Bull. U. S. Geol. Geogr. Surv. Terr., IV, 762-763 (1878); 

 Tert. Ins. N. A., 491-492, pi. 8, fig. 1 (1890). 



Green River, Wyoming. 



