132 JOHN HAMILTON, M. D. 



29S. Omosita colon Linn. 



This is another introduced Euroj)ean sj)ecies, and, like the two 

 preceding, occurs here, though greatly more commonly and abun- 

 dantly. It has spread from the Atlantic to Colorado, where it meets 

 0- dUcoldea in its eastern progress. The southern contiguous parts 

 of west and east Siberia ; Amurland, 1. c. 306 ; Heyden, 92. 



299. O. discoidea Fah., inversa Lee. 



" Occurs in Europe and in the Pacific States, extending as far east 

 as Colorado," Horn, 1. c 306. Northern Michigan, Schivarz; Ottawa, 

 Canada, Harrington, in lift. It appears to be very abundant in New 

 Mexico and Colorado. 



300. Meligethes brassicas !^cop.. eeneus Fab., ritfimanus Lee, mwrens Lee, 

 californicus Reitter. 



"This species occurs in California and Oregon," Horn, 1. c. 313. 

 The var. daHricus Mots, viridipennis Mots, occurs throughout eastern 

 Siberia and Amurland ; Col. Am. 129 and figure. 



301. Cryptarcha strig-ata Fab. 



While not very abundant, this species is found in many places 

 from the Atlantic to Colorado, though a record northward from 

 Michigan has not been noted. West Siberia, 1. c. 322 ; Heyden, 93 ; 

 Chabarofka, Heyden, 1886. 



302. Ips fasciatus Oliv., geminafus Mels., 4-signntus Say, G-pustulatus Eeit., 

 hipustulatus Mels. 



These names indicate merely color variations, and several others 

 might be given with equal propriety to other forms. I observe no 

 structural differences of any permanency between these forms, nor 

 the 4-g7dtatus Linn, of Europe, which has nearly the same markings 

 as geminatns. This species occurs everywhere in the United States 

 eastward from the Rocky Mountains and across the northern part of 

 the continent to Oregon and Vancouver, 1. c 323, Can. Ent. xvii, 46. 



LATRIDIID^. 



The species of this family being minute and difficult to recognize, 

 are mostly neglected by collectors, many of them are undescribed, 

 and their distribution is but faintly indicated by the records. 



303. Haloparamecvis singularis Beck. 



A little thing, only 03 inch, in length, which inhabits under bark 

 in central Eunjpe ; occurred at Fort Yuma, California. C. 156 ; 

 and at New York in mould v straw goods from Italy. Pr. 1876. 



