THE CANADIAN ENTOMOLOGIST. 45 



the inner margin, covered with long hairs as usual, the rest reticulated ; of 

 the same color as the fore wings. 



Head gray, darker in the male ; colar sHghtly more buff tinted than 

 the ground color of the wings, making a light drab, without marks ; thorax 

 gray, a mixture of the ground color of the wings and black, a black line 

 round the posterior margin preceded by a space devoid of black ; abdo- 

 men of a lighter gray than the thorax. Beneath the thorax and abdomen 

 concolorous with the same parts above, the legs ringed with light. 



This species is nearest to Cossus Angrezi Bailey, but differs from that 

 in several particulars. It lacks the dark shading on the fore wings, in the 

 shape and distinctness of the transverse median line on fore wings, and in 

 the shape and position of the subterminal line. The fore wings are a litde 

 less rounded at the apices, otherwise they are shaped alike. The hind 

 wings in this species are reticulated over the terminal two-thirds, while in 

 Angrezi the reticulations do not cover quite half In Angrezi the thorax 

 is black, with the edge of the tegula? shaded with yellowish gray ; in this 

 the thorax and tegulae are both gray. The antennae are pectinated in 

 both sexes, most heavily so in the male. The under side of the wings 

 repeat the markings of the upper side, but a little blurred. The space 

 between the two transverse lines is a little shaded with brownish. The 

 female has the ovipositor exserted about .30 of an inch. 



Described from two examples, one of each sex, taken by David Bruce, 

 in Colorado, in 1887, and in the name dedicated to him. 



Tolype distincta, nov. spec. 



Expanse, male 1.12^2, the female 1.50 inches. 



Male. — In color and markings between Velleda and Laricis, rather a 

 dark leaden gray ; the fore wings crossed by two geminate lines and a 

 subterminal line, similar to those of Velleda, but the subterminal line is 

 also inclined to be geminate. These lines are lighter than the ground 

 colour, but not white as in Velleda. The geminate lines bordered each 

 side by a shade line that is slightly brownish ; fringes concolorous, a 

 whitish gray line at the base. Hind wings nearly the color of fore wings, 

 a pale shade through the middle and at the outer border ; fringe like that 

 on fore wings. 



