— 24 — 



the subdorsal tubercles are nearly as large, but are narrower than 

 the two in the middle. This segment is slightly hiitiipcd, and hears 

 a brou<n spot stirrotiihting the Inucs of the two twin tiilwreles, and a 

 similar spot occurs on the i st abdominal segment. The four dorsal 

 warts on segment 9 are arranged in a trapezoid, the two in front 

 being one-half as large as the- two behind. The uj^per subdorsal 

 row of tubercles are partly connected by short lines or streaks, and 

 between this and the next row of warts lower down is a broken 

 fine brown line, which is, however, almost obsolete. A fine nearly 

 obsolete (or is it incipient?) dorsal brown line. — In more advanced 

 specimens the body is plainly striped on each side with three inter- 

 rupted dark reddish lines. The jMliferous tubercles or warts are 

 dark brown, and give rise all over the l)oily to but a single hair. 

 A pair of especially large long hairs arises from the 2d thoracic 

 and 9th abtlominal segments. The hairs are long and slender, and 

 though under a low power tluy ajipear to be tapering, under a 'A 

 objective they are seen to be docked or blunt at the end and some 

 at least slightly but distinctly bulbous at the tip; they are also seen 

 to be hollow and truly glandular, the itw^X appears to be flattened, 

 as seen sideways the hairs appear to taper. The hairs vary much 

 in length, some being longer than the body is thick. An unusual, 

 if not unique feature, exceptional among Bombycid larvae in the 

 first stage is the microscopic hirsuties clothing the body. 

 Under a 'A objective the microscopic hairs are very short, quite 

 uniform in length, very dense, and taper to a point. 



The suranal plate is distinct, blackish, nearly as long as 

 broad, rounded triangular, antl bears on the edge 8 piliferous 

 warts of nearly equal size, besides two arising from the surface, a 

 little in front of the middle. The spiracles are round and remark- 

 ably small. 



The thoracic legs are black, and at the end near the claw are 

 two tenant hairs which are long and large, curved backward and 

 somewhat knife-shaped. The abdominal legs have a black 

 chitinous scale on the outside above the planta. These are at 

 first crotchets. 



The general color of the body is deep straw-yellow with a 

 greenish tinge and a waxy appearance or gloss on the skin, while 

 the obscurely marked stripes are reddish. 



Stage II. — Length 5-6 mm. Aug. 18-20. Now the generic 

 and part of the specific characters are assumed, the species in this 

 stage being easilv distinguishable from the others of the uenus. 



