58 THE CANADIAN ENTOMOLOGIST. 



between the first and second dorsal segments deeply constricted, 

 that between the second and third moderately constricted. 



South Island, Coronado Islands, Aug. 21, three males (7\ and 

 W. CklL). I at first supposed that this was the male of //. grinnelli, 

 but the thorax and wings are so different that it seems necessary 

 to regard it as a distinct species. 



Halictus nevadensis Crawford. 

 One female taken; a little larger than the mainland form, 

 which is apparently the commonest small green Halictus of Southern 

 California. I took the species at the Scripps Institute, La Jolla, 

 and at Orange. 



NOCTUID NOTES FROM WESTERN CANADA, WITH 

 DESCRIPTION OF TWO NEW SPECIES AND 



A VARIETY. 



BY F. H. WOLLEY DOD, MIDNAPORE, ALTA. 



Cucullia omissa, sp. nov. 



Closely allied to asteroides Guen. and poslera Guen. 

 It principally differs from asteroides in being darker through 

 out, and having dark secondaries in both sexes. 

 Even the darkest specimens of asteroides seem always to have a 

 faint violaceous tinge to the grey of the thorax and primaries, 

 which omissa always lacks. The discoidal spots are even less 

 distinct than in asteroides. In all asteroides which I have examined 

 the secondaries are clean pearly white in the basal half or two- 

 thirds, with a \ery irregular and narrow dusky outer border in 

 the male, and a broader and darker one in the female. In all 

 my omissa the secondaries are fuscous throughout, though palest 

 basally. As is the case in postera, or at least in the prairie form of 

 that species, the secondaries are practically alike in both sexes. 



In a few of the darkest specimens there is a small discal spot 

 on the secondaries beneath. Some specimens come very near the 

 prairie form of postera in colour, but the new species is less maculate 

 and streaky than that, and the discoidal spots are much less dis- 

 tinct, being in fact almost obliterated by the rusty red shade 

 overlaying the cell and areas immediately beyond it. The longi- 

 tudinal streak at the anal angle, the preceding crescent and cloud, 



February, 1916 



