DISTRIBUTION OF COLEOPTERA. 141 



357. Ptinus fur Linn., humeral! s Say. 



This species inhabits old houses, natural history museums, etc., and 

 occurs occasionally in all parts of our country to Alaska. It is 

 common in Europe and Asia to Kamtschatka. Col. Am. 154 ; Hey- 

 den, 130. 



358. P. brunneus Duft., frotitalis Mels. 



Occurs in the District of Columbia, where it is commonly bred 

 from rats' dung by Mr. Pergande (Proc. Ent. Soc. Wash, i, 14). I 

 take it here in Pennsylvania; Ohio, Duvy; Missouri, Schuster; 

 Texas, Belfrarje. France. Germany. Southern Europe. 



359. Ernobius mollis Linn., c.onvexifrons Mels. 



" A common European species introduced into the Atlantic States," 

 LeConte (Pr. 18(j5, 224; Pr. 1861, 3.')2). Melsheimer took it in 

 southeastern Pennsylvania, and it occurs here ; northern and southern 

 Michigan, Schivarz. Europe. Barnaul on the Obi, west Siberia, 

 Heyden, 131. 



360. Xestobium tessellatum Fab. 



"Introduced into the Atlantic States from Europe," LeConte {\. c. 

 227). I have seen no native specimens, nor record of occurrence. 

 The specimens in Blanchard's and Horn's collections are from ^las- 

 sachusetts. 



361. Sitodrepa panicea Linn., tenuistriatum Say, ubesum Mels. 



This is a cosmopolitan species common throughout North America 

 to Alaska and Europe, and all Siberia to Kamtschatka. It is often 

 a great pest in houses, stores and museums, 1. c. 229 ; Can. Ent. xv, 

 92; Col. Am. 154; Heyden, 131. 



36:2. Nicobium hirtum ///. 



Dr. LeConte had in his collection a s])ecimen probably taken in 

 Georgia, and Schwarz took one in Florida. I have observed no 

 other record of its occurrence in this country. Europe (France. 

 Spain. Italy). LeConte, 1. c. 231. 



363. Lasioderma serricorne Fab. 



This species, according to Dr. LeConte, lives chiefly, though not 

 exclusively, on tobacco (1. c. 238), and has been carried by commerce 

 over the whole globe. Mr. Schwarz took it at Detroit, Mich. I 

 have it from Louisiana, and have taken it here in Pennsylvania. It 

 is probably common enough, but not generally recognized. 



