6 THE ROSE SLUG-CATEEPILLAR. 



expanse of the male is generally a little less than an inch ; of the 

 female, a little more. 



The moth closely resembles {Parasa) Euclea cMoris H.-S., for 

 which it has often been mistaken,^ 



THE EGG. 



The egg is described by Dr. H. G. Dyar as follows : 



Singly, or in small groups, slightly imbricntetl. Elliptical, flattened, translu- 

 cent pale oclire-yellow on glass, 1.5 by 9 mm.; reticulations obscui'e, possibly 

 only in a strong liglat, rounded hexagonally, nearly linear, somewhat Irregular. 

 No special characters. They hatch in nine days. 



THE LARVA. 



The following is descriptive of the larval forms received from 

 West Virginia and Maryland, but according to other clescribers the~ 

 general color varies from red to sulphur-yellow. 



The penultimate stage. — In the penultimate stage the larva closely 

 resembles the mature form, but the prominent spine-bearing processes 

 are paler and less reddish, being chiefly of a dull lemon-yellow color, 

 with the exception of the small lateral spiny tufts, which are orange 

 at the base. Between the third and fourth processes the dorso-lateral 

 stripes are distinctly carmine. The length of the slug-caterpillar at 

 this stage is about half an inch or a little more. 



The full-grown larva. — The full-grown larva looks very unlike 

 any common species with which it could be compared, but in the 

 general arrangement of its spines it resembles Sihine stimulea. Its 

 form is similar, but the general impression as to color is orange, 

 which is the color of the principal spine-bearing processes, of which 

 there are seven pairs, as follows: Two in front, two behind, one 

 pair in the middle, a shorter pair proceeding from the first thoracic 

 segment just above the head, and the seventh pair proceeding from the 

 second thoracic segment on each side. There is a dor.so-lateral 

 vermilion-scarlet stripe bearing six pairs of moderately long spinous 

 processes and four rosette-like spinous tufts. There is also a lateral 

 red stripe and a sublateral red stripe bearing nine rosette-like spi- 

 nous tufts. The thin violet or mauve lines, in the middle of the back, 

 as shown in figure 1, c, alternate with white. The length is about 

 three-fourths of an inch. 



THE PUPA AND COCOON. 



The pupa (fig. 1, /) is so similar to that of Sibine stirrhulea that a 

 detailed description is not necessary for present purposes. It is a 

 trifle smaller than the latter, and i-n its early stage pale yellow with 



1 Both species belong to the family (."ochlidiidae. 



