133 



yellow green, this color bounded on each side by a red curved 

 line ; two short red lines on the back of the seventh and ninth 

 segments. A longitudinal yellow line extends from the last 

 thoracic segment to the tail, margined except in the three last, 

 with a close continuous series of red dots. Anal prolegs useless 

 as organs of motion, forming in appearance a short bifurcate 

 tail. Pupa smooth, black, "feeds on the Quercus tyrata?' 



56. Larva, when not full groAvn (?), green, with scattered 

 white spots, head pale flesh color ; back of the three thoracic 

 segments the same ; a small patch near the base of the third 

 pair of legs, an irregular mark on the third, fourth and fifth 

 abdominal segments, a patch over the fourth pair of prolegs and 

 a small square spot on the twelfth segment, as well as all the pro- 

 legs, pale flesh color. Legs ringed pink and white, two small 

 horns tipped with black close behind the head. Anal prolegs 

 perfect. Adult larva of a buff color, with numerous sub- 

 ocellate whitish spots, and a large lilac patch on the back of the 

 three middle segments extending laterally forward nearly to the 

 head and tail. A similarly colored patch near the base of the 

 third pair of legs. Anal prolegs not perfect. Pupa smooth, 

 dark brown. [Further notes upon these insects, taken from 

 Doubleday's MSS., are given in a note. 1 ] 



1. Genus Stauropus ? [Helerocampa Doubleday, Entomologist, p. 55.] 



Palpi short, porrect, Inarticulate, first joints cylindrical, curved. Second joint nearly 

 double the length of the first, slightly curved at the base, slightly stoutest in the mid- 

 dle, tapering towards the apex, both densely pilose and setose. 



Antennas of the $ strongly bipectinate for about two thirds of their length, the 

 pectinations fringed with delicate setae; apex simple. Antennas of simple. 



Muxillce but slightly developed. 



Head densely clothed, a fascicle of hair-like scales at the base of each antenna very 

 distinct in the 3 (less so in the $ ). 



Thorax densely clothed, slightly crested behind. 



Abdomen tapering, rather long, slightly tufted in the $ . 



Wings entire. 



When I wrote out the character of this genus above, I imagined it quite distinct 

 from Stattropus. I then had only a ? Stauropus, but having since got a <J , I find that 

 the male differs from 60, 57 and 56, only in having the pectinations of the antennae 

 more lengthened, and the abdomen rather more tufted. Of these three species I 

 have only $ . Had la ? , it would much aid me, as the 9 of Staurojius has the tail 

 much tufted. The knowledge of the larva, too, is essential. The larva of Stauropus is 



