SCARAB.^:iD^E— CERAMBYCID^E. ■ 105 



Elytra with distinct aud deep impunctured striae. Outer hind angle of hind 

 tibiae spiniform. 



Length, 4.2 mm.; breadth, 2 mm. 



Florissant, Colorado; seven specimens, Nos. 167, 2312, 3046, 4702, 

 5024, 8147, 11258. 



APHODIUS Ilhger. 



A dominant cosmopolitan type with numerous North American species. 

 Many fossil species have been recorded: In the Pleistocene, one in Pennsyl- 

 vania, and six in Galicia, of which two are regarded as identical with living 

 forms; in the earlier Tertiaries, five species in Baden and Germany and on 

 the Rhine; besides, according to an old reference of Robert, an existing 

 species (probably an artifact) in amber. 



Aphodius precursor. 



Aphodm-s precursor Horn, Trans. Am. Ent. Soc.,V, 246 (1876); Scudd., Tert. Ins. 

 N. A., 488-489, pi. 1, % 11 (1890). 



Bone caves of Pennsylvania. 



TROX Fabricius. 



A cosmopolitan group, with abundant representation in North America. 

 The following species from British Columbia is the only known fossil form. 



Trox oustaleti. 



Trox oustaleti Scudd., Rep. Prog. Geol. Surv. Can., 1877-78, 179-180B (1879); 

 Tert. Ins. N. A., 487, pi. 2, fig. 22 (1890); Contr. Canad. Palseont,, II, 35 (1892). 



Nine-mile Creek, British Columbia. 



Forty-four species of this family have been found fossil, referred to 

 thirty genera, of which sixareextinct. Two only of the species are Pleis- 

 tocene. The only described American species belongs to an extinct genus. 



PAROLAMIA Scudder. 



Parolamia Scudd., Bull. U. S. Geol. Geogr. Surv. Terr., IV, 529-.530 (1878). 



Closely allied to Lamia, but differing from it in the brevity of the 

 head and the structure of the antennae. Body heav}^, moderately elon- 



