ENTOMOLOGICAL CONTRIBUTIONS. ] 13 



side of the leaf, its surface appearing shagreened under a lens, marked 

 with indistinct lateral stripes, and dotted with whitish granulations, 

 which diminish in size toward the center; mandibles yellow, black 

 tipped ; eyes on a fuscous crescent. Collar with whitish granulations, 

 except on the anterior margin where they are orange. Body greenish- 

 white dorsally, with a vascular line of rose-pink interrupted at the 

 incisures ; a lateral stripe of yellow-green papillae of one to each 

 annulet, edged above with darker green, and below with green 

 shading deeper to the prolegs ; lateral papillae greenish-yellow ; ven- 

 trally, from the fourth segment to the posterior extremity, concolor- 

 ous with the vascular stripe. Caudal horn curved, rose-colored, tipped 

 with ferruginous, with fuscous spinules anteriorly and posteriorly. 

 Stigmata crimson, white-dotted at the extremities, and surrounded 

 with rose. Legs and prolegs ferruginous basally, next fuscous, and 

 rufous terminally. 



As the larva approaches maturity, it becomes more white dorsally, 

 the red of the vascular stripe changes to white, and the red sur- 

 rounding the stigmata disappears. With the distention of the skin, 

 the papillae change to whitish ocellations. 



On September 6th, the above larvae commenced constructing their 

 cocoons under leaves drawn against the sides of the glass in which 

 they were confined. The maximum length of the cocoons is one inch 

 and one-half. The silk of which it is composed is of a bronze color, 

 and in so small a quantity as to permit the larva to be distinctly 

 seen through its meshes. On the llth, they changed to pupae of a 

 chestnut color, broadly banded with testaceous at the incisures. 



The pupae, after wintering in a cold apartment, were transferred 

 early in April to a warm room. On the 26th of April, from the 

 three pupae, two males and one female were disclosed. The u vitreous 

 space" in the wings of each is thinly covered with scales. 



On September 19th of the following year, another of the larvae 

 was taken from the same snowball, which made its cocoon on the 

 day following. In the month of September of the two succeeding 

 years, leaves w T ere noticed which had probably been eaten by this 

 larva, indicating it to be an annual visitant of this particular shrub. 



I have collected the imago also at Utica, IS". Y. 



