DISTRIBUTION OF COLEOPTERA. 125 



COLYDIIDJE. 



249. Ag-lenus brunneus Gyll., Anom.matus ohsoletus Spence. 



This species is figured Brit. Coleop. Delin. by Spry & Shuck, pi. 

 33, fig. 2. It is probably introduced. My native specimens are 

 from Missouri {Schuster) ; it has also occurred in California (C. 127). 

 Lieut. Casey took a colony of about forty individuals near San Fran- 

 cisco, Cala., under a board long imbeded in a thick grassy turf, Pr. 

 Ent. Soc Wash, i, 46. In Europe it occurs about houses. Samar- 

 kand in Turkestan. Heyden, 94. 



250. Murmidius ovalis Beck. 



Probably introduced from Europe. This minute insect, only .05 

 inch, long, has been observed several times in this country ; it seems 

 to live in mouldy straw. Pr. 1876, 270. My native specimens are 

 from Washington, D. C. 



RHYSODID^. 



251. Rhysodes exaratus Serv., americanus Lap , aratus Newm. 



This species extends from New York and Michigan southward to 

 Georgia and westward to Missouri and Iowa, though it is not com- 

 mon. I have met it here only once. France. Germany. Austria. 

 Russia. T. v, 162. 



CUCUJID.E. 



2.52. Silvanus surinamensis Linn., var. biconiis Er., 6-dentat.us Fab. 



253. S. bidentatus Fab. 



254. S. cassise Reiche. qiindricollis \\ Lee. 



255. S. advena WntL. mnsaeormn Zieg. 



256. Nansibius dentatus Marsh., major Ziinra. 



These five species are cosmopolitan. S. cassiie occurs from New 

 York to the Southern States, where it is especially abundant. JS. 

 bidentatus, advena and N. dentatus are generally distributed, being 

 often taken under bark as well as in articles of commerce. Lieut. 

 Casey has outlined these species, T. xi, plate 4 ; P. vii, 77. Surina- 

 mensis occurs in Turkestan and western Siberia ; bidentatus in east 

 Siberia. Heyden, 95. 



257. Prostomis mandibularis Fah., americanus Crotch. 



Taken by Mr. Crotch on Vancouver Island ; " Oregon, California. 

 Nevada," Casey. Europe. T. v, 74; T. xi, 76. 



