145 



similar to those on the dorsal space. Below the lower line of 

 tubercles, dull orange. 



The single larva from which the above description was taken 

 was found feeding on a willow leaf, September 19, 1880. It pu- 

 pated September 30, in the manner usual to this group and pro- 

 duced the imago June 17, 1881, a ?. 



E. Monitor, Packard. In shape and character of markings 

 similar to the preceding. Length .56 of an inch, width .25 and 

 height .19. Color dull, whitish green, the ridge and row of 

 spiny tubercles in the sub-dorsal and stigmatal regions, a little 

 more of a distinct green. Like the preceding species, this larva 

 has a black tubercle without spines in each sub-dorsal row be- 

 tween the last two spined tubercles. The spines on the tubercles 

 are white at base and black at the tips. Like the preceding, 

 each joint, but the twelfth, has on the back and each side two 

 whitish impressed spots. These are surrounded by black lines, 

 formed along the ridges, connected by transverse lines passing 

 between the impressed places. The green on the sub-dorsal ridges 

 is broken in three places by black. 



Two of these larvae were found feeding on oak leaves, the 

 first, September 20, 1880, and the second, September 30. The 

 first pupated October 2, and the other soon afterward. They 

 produced imagines June 12 and 20, 1881, the first a $ the second 

 a ?. 



DESCRIPTION OF A REMARKABLE NEW GEOME- 



TRID. 



By B. Neumoegen. 



ASPILATES ViRIDIRUFARIA. n. Sp. 



This fine Aspilates has been found by me in a single ? speci- 

 men in the Greenhorn Mountains of Colorado, in the season of 

 1880. This season my indefatigable collector, Mr. I. Doll, was 

 fortunate enough to find the $ mate of it near Prescott, 

 Arizona. 



Looking at it, it reminds one of the much smaller Chloraspila- 

 tes bicoloraria, while it differs in the palpi, being as in Aspilates, 

 and in the shape of the wings. It is green and reddish like 

 Bicoloraria, but the head is not concolorous with the green bliorax, 

 but of reddish color, and the insect is much larger. In point 

 of ornamentation there is a resemblance to some forms of 

 Coloraria. 



Head and primaries are of dark grass-green color, the fringes 

 being reddish, the costal edge likewise having a narrow reddish 



