THE CANADIAN ENTOMOLOGIST. 205 



spots and a number of smaller black dots, besides an obscure white line 

 on the posterior part, each side of the dorsal row of dots ; abdomen 

 pinkish laterally. Length, 12 mm.; width, 5.5 mm. 



Food Plant. — Wild gooseberry {Ribes). The larvpe occur several on 

 the same branch, but they feed singly. 



THE LARVA OF ZOTHECA TRANQUILLA, GROTE. 



BY HARRISON G. DYAR, YOSEMITE, CAL. 



Fggs. — Laid in a mass, probably under the bark of the food-plant, for 

 which purpose the long ovipositor of the ? moth seems fitted ; the winter 

 is probably passed in this state. Spherical, but somewhat misshapen from 

 being closely pressed together ; smooth, slightly shiny, under the micro- 

 scope appearing irregularly indented ; colour, yellow, becoming later 

 reddish; diameter, .5 mm. 



There appear to be six larval stages, the last two of which are all that 

 came under observation, and to them the following description applies : 

 The larvae live singly, each in a leaf of its food-plant, curled over and lined 

 with silk. 



Larva. — Head entirely black, except the bases of the antennae, which 

 are whitish ; smooth, shiny, but under a lens seen to be slightly 

 shagreened ; a few hairs. Width in the fifth stage, 1.8 mm.; in the sixth, 

 2.8 mm. 



Body plump and smooth, tapering at the extremities, curled spirally 

 when at rest. The small black piliferous dots are normal in arrangement ; 

 row (4) stigmatal, posterior to the spiracles ; rows {5) and (6) anteriorly 

 and posteriorly in the sub ventral space, and row (7) the dots on the venter 

 of the apodal segments are very small. Dorsum dark olive-gray, contain- 

 ing a broad yellow dorsal band, which is broken into two round spots on 

 each segment, the anterior one of which is twice indented, or nearly 

 bisected on the dorsal line. This marking is narrower towards the ex- 

 tremities and becomes somewhat confused. Below the olive-gray is a 

 narrow interrupted whitish subdorsal band bordered with black, a lateral 

 blue-gray band and a broad yellow stigmatal band separated from the 

 lateral band by a wavy black line. Venter bluish gray, streaked with 

 black subventrally, feet yellowish, spiracles black. In another example 

 the dorsal and lateral regions are concolorous, bluish gray, sprinkled with 

 black streaks, the dorsal and subdorsal bands edged with black. The 

 anal plate is unornamented. 



