lOO SECOND REPORT OF THE STATE ENTOMOLOGIST. 



the largest. The stigmata or breathing-pores are broadly oval, and- 

 bordered with red. A magnifier shows a short blackish hair upon each 

 of the ordinary piliferous spots. The legs are reddish. 



The Moth. 



The moth is quite unlike the usual slender-bodied and broad-winged 

 GeonietridcB, having a short and stout abdomen, in which, together with 

 its proportionate spread of wings and their general shape, it strongly 

 resembles many of the Bomhycidce. Indeed until its structural char- 

 acters are studied, it seems quite out of place in an arranged collection 

 of the Geonietridoe. 



Fig. 17, taken from Saunders' /wsec^s Injurious to Fruits, gives good 



representation of the insect. The 

 body and the thorax are gray, the 

 latter with a white collar. The 

 wings are gray, dotted, streaked and 

 lined with black. Two black lines 

 bound the central portion of the 



Fi«.lT.-The can-ant Ampb.dasy«,AMPH,t.AST3 ^ingS, the OUter one of which is 



coGNATARiA Guenee. Strongly two-toothed on the primar- 



ies, and one-toothed on the secondaries. Between these lines, the 

 ground is white sprinkled with black, and traversed centrally by a two- 

 lobed shade on the primaries. The antennae are broadly pectinated in 

 the male; the abdomen short and quite stout in the female. Expanse 

 of wings, two inches, 



Life-History. 



There are two annual broods of this insect. From larvse collected in 

 August, I have obtained the imago in the following May, From larvae 

 taken by Miss Morton on the 28th of June, nearly full-grown, and which 

 entered the ground for pupation on the loth and 12th of July, the moths 

 were produced from the 12th to the 22d of August, The last of these at- 

 tracted several males during the night following its appearance, and de- 

 posited a large number of eggs on the succeeding night. The larvse from 

 the eggs were fed upon the honey locust, but being only about one- 

 third grown when the leaves fell, they were not matured. They doubt- 

 less died from starvation and exposure in the bag in which they were 

 confined upon a locust, where no suitable shelter could be had, for they 

 were observed traveling about within the bag during all the warmer days 

 of October and November. 



Other larvae taken by Miss Morton during the summer of 1882, bur- 

 ied themselves in the ground, from the i6th to the 20th of September, 

 but failed to produce the perfect insect.. 



