116 TERTIARY COLEOPTERA OF NORTH AMERICA. 



CISTELID^E. 



Ten species of this family have been found fossil, belonging to five 

 genera, of which one is regarded as extinct. Only one of these species has 

 been found in the Pleistocene, and is regarded as identical with a living form. 



CISTELITES Heer. 



A name proposed by Heer for fossil Cistelidse of uncertain position, of 

 which he described four, two from Greenland, the others from Baden and 

 from Sachelin in eastern Asia. E. Geinitz has used the same generic term 

 for species from the Lias of Dobbertin. 



CiSTELITES MINOR. 



Cistelites minor Heer, Flora foss. arct., HI, 25, pi. 5, fig. 13 (1874); Flora foss. 

 Grcenl., II, 145, pi. 109, fig. 6 (1883). 



Puilasok, Aumarutigsat, Greenland. 



ClSTELITKS PUNCTULATUS. 



Cistelites jmnctvlatit^s Heer, Flora foss. arct., II, 484—1:85, pi. 56, figs. 14, 14bc (1870); 

 Flora foss. arct.. Ill, 25, pi. 5. fig. 12 (1874); Flora foss. Grcenl., II, 146 (1883). 



Puilasok, Atanekerdluk, Greenland. 



IMELOID^gS. 



Thirteen species of Meloidse, of seven genera, have been indicated from 

 the lower Tertiaries, but only about half of them have been described. 



GNATHIUM Kirby. 



An American genus with half a dozen species, all but one found in the 

 United States. A single species has been found fossil in Colorado. 



Gnathium .etatis. 



Gnathium catatis Scudd., Tert. rhynch. Col. U. S., pi. 2, fig. 10 (1892). 



Head smooth or with barely perceptible rugae, prolonged, the eyes 

 oval and nearly longitudinal. Prothorax remarkably short, apparently 

 broader than long, longer above than below, with very faint transverse 



