ARTHROPOD A— INSECTA. 447 



Colorado (about twenty species) ; in the Miocenic of British Co- 

 lumbia (Tenebrio primigenius Scudder), and in the Eocenic of 

 Greenland (Helops wetteravicus Heyd.). 



The division of the Phytophaga is well represented in the Amer- 

 ican Tertiary, the Bruchidcu in the Oligocenic of Florissant, Colo- 

 rado (Spermophagus vivificatus Scudder and others), and the 

 White River of Colorado (Bruchus anilis Scudder), the Chryso- 

 melidcE at Florissant (Oryctoscirtetes protogaeum Scudder, and 

 more than twenty other species) ; in the Green River beds of 

 Wyoming (Cryptocephalus vetustus Scudder) ; in British Columbia 

 (Galerucella picea Scudder) ; in Alaska (Chrysomelites alaskanus 

 Heer), and in north Greenland (C. fabricii Heer) and the Ceram- 

 bycidce in the Oligocenic of Florissant, Colorado (Parolamia rudis 

 Scudder, and perhaps twenty other species). 



The division Lamellicornia is sparingly represented in American 

 deposits by the family ScarabceidcF, occurring in the Oligocenic of 

 Florissant, Colorado (thirty or more species), the Green River 

 beds of Wyoming (^gialia rupta Scudder), the Tertiary of British 

 Columbia (Trox oustaleti Scudder), and in the Post-Pliocenic of 

 Pennsylvania (Aphodius praecursor Horn, Choeridium(?) ebeni- 

 num Horn and Phanaeus antiquus Horn). 



The division Serricornia is known from the Eocenic Green 

 River beds of Wyoming (Anobium, three species; Corymbites 

 velatus Scudder, etc.) ; in the Florissant beds of Colorado (several 

 hundred species, including the fire-fly, Chauliognathus pristinus 

 Scudder) ; the White River beds of Utah and Colorado (Epiphanis 

 deletus Scudder; Oxygonus mortuus Scudder, and others); the 

 Eocenic of Greenland (Buprestites heeri Scudder) ; and the Mio- 

 cenic of Nicola River, British Columbia {Buprestis, three species). 



The division Clavicornia is likewise most abundantly represented 

 in the Oligocenic beds of Florissant, Colorado, though the number 

 of species is much less than in the preceding division. Most of 

 the species belong to the family Staphylinidce. Other Tertiary 

 localities in which these insects have been found are British Colum- 

 bia (Prometopia depilis Scudder, Cercyon(?) terrigena Scudder), 

 the Green River beds of Wyoming (Antherophagus priscus Scud- 

 der, Lathrobium abscessum Scudder, Berosus, two species ; Hydro- 

 bius, two species; Tropisternus, two species; Hydrochus relictus), 



