42 TERTIARY COLEOPTERA OF NORTH AMERICA. 



BEROSUS SEXSTRIATUS. 



]}< mxiix x,.rxtri<i1iix Scudd., Bull. U. S. Geol. Geogr. Surv. Terr.. IV, 7rio-7(il 

 Tert. Ins. N. A.. 513-514. pi. I, tig. 40 (Lsyo). 



Green River, Wyoming. 



BEROSUS TENUIS. 



/,', /v.v tenuis Scudd.. Bull. T. S. Geol. Geogr. Surv. Terr.. IV. Tiio (IsTs): Tert. 

 Ins. N. A.. 514. pi. 8, rig. s (IS'.)O). 



Green River, Wyoming. 



LACCOBIUS Erichson. 



A limited genus of about a tlozeii species, almost exclusively r< infilled 

 to the north temperate zone and <>f which only two species are known in 

 the United States. A single fossil species is found in the Pleistocene of 

 Galicia, three others in the older Tertiaries of France and the Rhine, and 

 one in Wyoming. 



LACCOBIUS ELONGATUS. 



L<i<-r<il>!iin , /inK/iitiin Soudcl.. Bull. U. S. Geol. Geogr. Surv. Terr.. IV, 761 (1878); 

 Tert. Ins. X. A.. 513, pi. 7, rigs. L'7, i'S (Is'.Mi). 



Green River, Wyoming. 



PHILHYDRUS Solid-. 



A nearly cosmopolitan genus, with numerous species, many found in 

 North America. A fossil species occurs in the Pleistocene of Galicia and 

 at least three others in the older Tertiaries of the Rhine and Wyoming. 



PHILHYDRUS PRIM^EVIS. 



Philhydrus primosvus Scudd.. Bull. I'. S. (Jeol. Geogr. Sun. Terr.. 11, 7* (Is7<'>); 

 Tert. Ins. N. A.. .ML', pi. s. tig. 5 (IS'.t(i). 



Green River, Wyoming. 



I'HILIIVUKI s spp. 

 I'lii'llii/ili'ii* xji/'.. Scudd.. Tcrl. Ins. N. A.. .Mi' ( IS'.MI). 



< ireen l{i\ f er, Wyoming. 



