72 SECOND REPORT OF THE STATE ENTOMOLOGIST. 



able the long, black pencil-hairs of the caterpillar and some of the 

 shorter yellow ones. 



The Pupa. 



Upon tearing open the cocoons, the pupae found therein (the third 

 stage in the insect's transformation) will be observed, if a number are ex- 

 amined, to vary greatly in size — some being less than a half-inch in 

 length, and others exceeding seven-tenths of an inch — these last sur- 

 passing the former four or five times in bulk: the 

 smaller ones produce male moths, and the larger, fe- 

 males. They are rounded in front and in their entire 

 outline, except at the hinder end, where they termi- 

 nate in a short spinous tip armed with bristly booklets 

 by which they fasten themselves to the threads of the 

 Pig 8 -The White- ^ocoons. The colors are whitish and brown approach- 

 rfe'Li'^|a;'^?lS ^^g black, particularly upon the back. On the front, 

 male pupa. back and sides are numerous short white hairs — a quite 



exceptional feature in the almost universal smoothness of the pupal form. 

 A prominent and characteristic garniture of the female pupa, shown 

 at c, in Fig. 8, is a pale, oval or square spot composed of minute 

 bladder- like bodies or scales on each of the principal rings (the thoracic 

 ones) back of the head. In the male, d, in the figure the broad antennse- 

 cases, with their transverse markings denoting the pectinations of the 

 organs, are conspicuously folded upon the breast beween the wing-cases. 



The Perfect Insect. 



The male moth, although far superior to the other sex in outward ap- 

 pearance, is not an object that would readily arrest the attention — its 

 plain colors being in marked contrast with those worn in its caterpillar 

 stage. Its size is rather below the average of moths and is seemingly 

 small for the larva producing it, as it measures but little more than an 

 inch across its expanded wings. The wings are broad and rounded in 

 outline and of a smoky-brown color. The front pair 

 have a gray patch on the middle of the anterior border, 

 and are crossed by three or four blackish curved lines> 

 of which the outermost one is quite angulated ; near 

 the outer margin is a gray band, preceded near the tip 

 by some elongate black spots, and near the inner angle 

 by a white spot, often comma-like in fofm. It is from 

 this last that its specific name of Uucostigma (white- 

 ok^GY^f leucSs^^m"!- mark) is derived. The hind wings are also broad, 

 iwsiuon at rest; the gmoky-brown, without any markings, but with a darker 

 border. Both pairs are fringed with projecting scales. 



Fig. 9.— The White- 



