THE CANADIAN ENTOMOLOGIST. 



14-; 



regularly common species of the genus. Have taken it most commonly 

 at light, end June and July, but have seen it flying in sunshine." None 

 of those we have examined agree with Dodge's figure of IVillianisii, 

 admittedly not correct, in Can. Ent., Vol. III., p. 167, every specimen 

 having the extra transverse band on the primaries. During the past 

 summer Mr. A. J. Dennis, of Beulah, Man., kindly sent me a batch of 

 eggs of Wiliianisii, var. determinata ; but, unfortunately, only two of 

 them hatched. These eggs were laid about the ist July, and hatched on 

 the 9th. The two larvae reached Stage VI.; one has since died, but the 

 other is now hibernating. The notes on the six stages, presented here- 

 with, are, I believe, the only knowledge we have of the larvte. In 1885, on 

 May 31, Dr. Fletcher found one larva on Erigeron fil if alius, ^wW., at 

 Kamioops, B. C, the moth emerging Aug. i; other larv?e were seen 

 under stones, and at Spence's Bridge, B. C. (June i), on Senecio. 



Stage I. — Length at first 1.8 mm., colour dirty whitish, after feeding 

 greenish. Head 0.3 mm. wide, dark, slightly bilobed ; mouth-parts 

 reddish. On each segment of body is the usual row of transverse 

 tubercles ; these are black and shiny. Cervical shield black. Bristles long 

 and slender, those from tubercles on dorsum black, from the lateral 

 tubercles silvery and longer than the black bristles. Tubercle i. small, ii. 

 very large, iii., iv. and v. nearly same size. Bristles finely barbed. 

 Tubercles ii., iii., iv. and v. are surrounded with brownish-red. Feet 

 concolorous, marked exteriorly with brown. Three days after hatching a 

 pale blue dorsal stripe was discernible. 



Stage IT. — Length 4.5 mm. Head 0.5 mm. wide, brown, darker at 

 apex, ocelli black. The larvai in general appearance are brownish, but 

 under a lens the skin from the inside edge of tubercle i. to the lower edge 

 of ii. is seen to be reddish-brown, except at intersegmental folds where it 

 is greenish; with a medio-dorsal stripe of pale blue. The skin between ii. 

 and iii , iii. and iv., iv. and v. and v. and vi. is yellowish, or greenish- 

 yellow, paler subventrally, blotched with reddish-brown. Tubercles 

 black, i. very small, ii. large, iii. and iv. about same size, v. smaller than 

 iv., and vi. smaller than v. Bristles from i., ii. and iii. nearly all black, 

 only a few silvery ones from iv., and from lower tubercles silvery. Bristles 

 faintly barbed, of varying lengths, the silvery ones slender and longest. 

 Spiracles small, black, close in front of tubercle iv. Feet concolorous, 

 semi-translucent, darkened exteriorly. 



