170 BIOLOGICAL si'KVKV OF 



Ptinidae. The Death-watch or Drug Store Beetles 



These beetles bore into the wood of old buildings, where 

 they make a ticking sound. They frequent stores and houses 

 where dried food is kepi and go through the whole menu, from 

 breakfast foods and coffee to cigars, with great relish. They 

 thrive on museum specimens and insect collections. In the 

 open search for them under the bark of dead trees and in the 

 dry trash of woodlands. 



Mezium Curtis 



AT. afpinb Boileau. Occurs in houses where is breeds in ani- 

 mal substances. Has been found in old insect boxes. This 

 is the European species which is found throughout the 

 northern part of the U. S. 



Ptinus Linnaeus 



P. hirtellus Sturm. In a house in Bar Harbor. 



P. fur Linn. (12613). An Old World species very dangerous 

 to museum specimens. In laboratory June and July. 



P. raptor Sturm. (21930). In laboratory October 16. Also 

 in Can. Natl. Coll. labeled "Bar Harbor, '33." 



P. villager Eeit. One specimen Corfield Aug. 8, 1932. 



P. sp. That looks like raptor taken with molasses bait, Cor- 

 field July 18. 



Anobiidae 



Look for them in dead branches, dried fungi, etc., and sift 

 for them. 



Erxobus Thomson 



E. mollis (Linn.) (12649). Occurs on pine. S. W. Harbor; 

 X. E. Harbor; Green Alt., June 22-July 25. General dis- 

 t ribution. 



Sitodrepa Thomson 



S. panicea (Linn.) (12689). The Drug Store Beetle. In a 

 house, Sept. 17. 



Mil KOBRK.CMA Scidl 



M. bmabginatum (Duft.) (12711). Corfield flying, June 3-9. 

 Scarce. 



