THE CANADIAN ENTOMOLOGIST. 75 



Length from one to one and a quarter inches. Head flat, with two promi- 

 nent black points or processes above, madibles yellowish-white. 



Body above dark dull brown, with a slightly reddish tint, and patches of a 

 darker shade along the dorsal region. On each side close to under surface is 

 a longitudinal ridge. 



Under surface similar in color to upper, excepting the spaces between the 

 feet and the two pairs of prolegs, which are of a greenish color. Feet crowd- 

 ed closely together, of a brownish-black color, prolegs of a similar shade. 

 The hinder pair tinged with green. 



In some specimens the general color is lighter. When alarmed they 

 straighten themselves out, and remain for some time in that position, and 

 being so nearly of the hue of the twigs of the plant they feed on, they thus 

 often escape detection. 



Mamestra arctica, Encyc. 



In No. 3 of the present volume of the Entomologist, C. S. Minot, Esq., of 

 Boston, published some interesting notes on the eggs of this species. Obser- 

 vations made last year enable me to add another fragment to the knowledge 

 we have of the history of this — one of our commonest moths. 



On the first of June two full grown specimens of the larvae were found 

 under turf — they probably fed on the roots of the grass, &c. 



Length one and a quarter inches. 



Head rather large, bilobed, reddish, with a polished surface; mandibles 

 black. 



Body above dull greenish-white, smooth, shining, and somewhat semi- 

 transparent, a little darker between segments. Second segment with a horny 

 plate above similar in appearance to head, but of rather a darker hue. There 

 are on each segment a few very small brownish dots, from each of which 

 there arises a single fine brownish hair. Sides of body much wrinkled j ter- 

 minal segment small, brownish-black ; spiracles black. 



Under surface similar to upper, feet brown, prolegs tipped with black* 

 These changed to chrysalides about the 3rd of June, and produced the imago 

 in the latter part of the same month. 



In a previous year I found the same larva full grown as late as the 26th of 

 June. 



Dryocampa rubicunda, Fah. 



Larva found feeding on silver maple July 30th. 



Length one inch, cylindrical. Head rather small, flattened, in front bilob- 

 ed, pale orange, with a black dot on each side below, near mandibles. 



Body above yellowish-white, thickly covered with minute whitish granula- 

 tions, only visible with a magnifying lens, with a dorsal and three lateral 



