PSYCHE. 



ORGAN OF THE CAMBRIDGE ENTOMOLOGICAL CLUB 

 EDITED BY B. PICKMAN MANN. 



Vol. I.] Cambridge, Mass., June, 1875. [No. 14. 



On the localities and habits of the various species of 



Omus. 



The rarity of the species composing this genus, and the posi- 

 tion which it holds in the ranks of Coleoptera, have always ren- 

 dered it a favorite one with collectors, and the few notes which 

 I have endeavored to bring together may not be without inter- 

 est to the readers of Psyche. The species of Omus are more 

 numerous than may be believed, as since the publication of 

 Gemminger and Harold's Catalogue, vol. i, in which only four 

 species are enumerated, the list has been increased to eight, and 

 it is quite probable that more remain to reward the investiga- 

 tions of explorers. The following are the species at present 

 known. 



Omus. 

 Eschscholtz. Zool.AU., I, 1829, p. If. 



C California, west of Sierra Ne- 

 californicus Eschtz. Zool. All., I. ^vada, and not farther south 



( than Monterey Co. 



i Foothills and Sierra of Cali- 

 Audouinii R e i c h e . Ann. Fr., 1838. -jfornia; Oregon; Washington 



( Territory ; Vancouver Island. 



_, . .. ,, . , . -r-, 1000 S Northern California; Oregon: 



Deieann Reich e. Ann. Fr., 1838. ■{ « r ir ti i 



J ' ( Montana; Vancouver Island. 



laevis Horn. Proc. Ac. Phil., 1866. Sierra Nevada; California. 



submetallicus Horn. Trans. Am. EntA^ Dorado c California< 



ooc, 1868. I 



Lecontei Horn. Trans. Am. Ent. Soc, \ Monterey (Gabb), Gaviota 



1872. { (W. S. Edwards), Cal. 



sequoiarum C r o t c h . Big Trees, Calaveras Co., Cal. 



Edwardsii Crotch. Lake Tahoe, California. 



0. californicus. I have frequently found this species in 

 various districts around San Francisco, and every year can look 

 with certainty for a few specimens in particular localities. I 

 have little doubt from its habits, that the whole of the group are 



