100 TERTIARY COLEOPTERA OF NORTH AMERICA. 



the name of Buprestites dfirHnitlcs. He undoubtedly overlooked the t';ict 

 that he had previously used the specific name. The present species may 

 therefore bear his name. 



Ilaseninsel, Greenland. 



CHRYSQBOTIIRIS Kschscholtz. 



A prevailing cosmopolitan genus with numerous North American 

 species. A fossil species has been described from Austria and another from 

 Colorado. 



CHRYSOKOTHRIS HAYDENI. 

 PI. XI. %. 1. 



r///y/Ww///'/.v lt,i,jil /,/Scudd., Hull. U. S. (TOO!. Geog-r. Surv. Terr.. II. so (1876). 



A single specimen, rather poorly preserved and obliquely crushed, was 

 obtained by Dr. F. V. Hayden at what was then known as Castello's ranch. 

 While it is unquestionably a buprestid, I place this species in Ohrysobothris 

 with some hesitancy. The shortness of the broad-tipped elytra, the rotund- 

 ity of the eyes, and the comparatively slender fore femora separate it from 

 tin- species of that genus which 1 have examined. The head is large, full, 

 well rounded; the eyes moderately large, nearly circular. The prothorax 

 is rather short, arched a little, minutely and shallowly punctulate. The 

 elytra reach to the base of the penultimate abdominal segment, and, as 

 exhibited on the stone, are as broad at tip as at base; the apex in any case 

 is broad, broadly rounded, or almost truncate: there is no appearance of 

 punctures, although there seem to be three or four faint equidistant longi- 

 tudinal ridges. A fragment of one of the wings is seen extending at right 

 angles to the elytra, The legs are slender and the fore femora resemble 

 the others. 



Length of insect, 15.75 mm.; of prothorax, 3.75 mm.: of elytra, 10 

 mm.; width of elytra at tip, 2.(i mm.; length of fore femora, 3.25 mm.; 

 of hind femora, 3.25 mm.; breadth of tore femora, 0.5< mm.: of hind 

 femora., ().4(! mm. 



Florissant. ( 'olorado. 



