DISTEIBUTION OF COLEOPTERA. ] 51 



423. Upis ceramboides Linn., reticulata Say. 



This species inhabits the northern portion of the continent from 

 Hudson Bay southward to New Hampshire (Nova Scotia, Harriuff- 

 ton in litt. ; New York, Michigan, Wisconsin, Manitoba, INIontana). 

 Germany. Northern Europe. Eastern Siberia, the Amur basin. 

 Tr. Am. Phil. Soc. xiv, 838 ; Col. Am. 139. larzowa Selo, Jenisei, 

 hit. 60° 10'. Nord., 27 ; Heyden, 146. 



424. Tenebrio obscurus Fab., tristis Hald. 



This common European sj)ecies has been introduced into this 

 country by commerce, and is spread from the Atlantic to the Rocky 

 Mountains ; also in eastern and western Siberia, 1. c. 345 ; Heyden, 

 146. 



425. T. molitor Linn. 



This species has likewise been introduced from Eui-ope by com- 

 merce, and occurs all over the United States and Canada from Nova 

 Scotia to Alaska, and southward to Mexico, depredating on flour 

 and stored grain. Eastern and western Siberia. Heyden, 146. 



426. Tribolium ferrugineum Fab. 



This and the five following species have been introduced by com- 

 merce, and are found where flour and grain are stored. The occur- 

 rence of this species in this country is noted in various places from 

 Florida to Alaska. Europe. Lintnergives a good account of it in 

 2d Rep. State Entomologist, N. Y., p. 136-3l>. 



427. T. madens Charp. 



Though widely distributed in this country, this species does not 

 appear to be connnon. I have specimens from New Mexico and 

 Hamilton, Canada; Ottawa, Harrington ; Marquette, Michigan, 

 Schivarz. Europe. 



428. Gnathocerus cornutus Fab. 



Occurred in California, inside of an army biscuit, Horn, 1. c 336 ; 

 Alaska, Mann., 1852. Notice of other occurrences has not been ob- 

 served. Europe. 



429. Echocerus maxillosus Fab. 



This species is common here, and in many places throughout the 

 United States and Canada (Florida; Cincinnati; Detroit; Milwau- 

 kee ; Alaska). 



430. Alphitobius diaperinus Pans. 



This species is likewise found here in feed stores. I have speci- 

 mens from Florida; Cincinnati, Dniry ; Horn, 1. c. 369. 



