PSYCHE. 



ORGAN OF THE CAMBRIDGE ENTOMOLOGICAL CLUB 

 EDITED BY B. PICKMAN MANX. 



Vol. I.] Cambridge, Mass., March, 1876. [No. 23. 



List of Coleoptera collected in Michigan in 1874. 



Among a large number of species of Coleoptera collected in 

 Michigan by Mr. H. G. Hubbard and myself, during the year 

 1874, those mentioned in the following; list will be found of 

 some interest. Where no locality is given, the species were 

 collected in the vicinity of Detroit. 



Omophron robustum Horn. A single specimen on the shore of Lake Erie 

 near Monroe, in September. 



Schizogenius ferrugineus Putz. With the preceding, not rare. 



Dicaelus purpuratus Bon. The larva of this species is very beautifully 

 colored, and was found in rotten logs, in the middle of August; it under- 

 goes its transformation in this place, and the imago appears about the be- 

 ginning of September. 



Bembidium anguliferum Lee. 1 Very rare under decaying leaves; pre- 

 viously found only in California. 



Hydroporus rotundatus Lee. In the Detroit River, rare. 



Helophorus tuberculatus Gyllh. Not common near Detroit. 



Ph'dhydrus consors Lee. Much rarer than Ph. cinclus Say. 



Cercyon unipuncta/um Linn, and C. cenlrimaculatum St. Not rare, on the 

 window of a stable, in October. 



Cercyon navicular e Zimm. Abundant in decaying fungus. 



Nossidium americanum Mots. 2 In a kind of Polyporus not rare in July. 



Plilium Collani Makl. Common in decaying fungus. 



Smicrus Jilicornis Fairm. Under decaying hay, in October, not rare. 



Pleryx balteata Lee. In rotten wood and sphagnum moss, not rare. 



Ptinella quercus Lee. Under old bark of oak, elm and other trees, common. 



Homalota Mannh. To give some idea of the number of species of this 



1 For the determination of this and many of the following species I am indebted to 

 Dr. Leconte. 



> It may be not without interest to state that a species of Motschulskium, very prob- 

 ably identical with M. s'muatocoUe Matth., was found abundantly by Mr. Crotch at 

 San Diego, Cal., under seaweed. 



