THE CANADIAN ENTOMOLOGIST. 85 



grey to a deep chestnut brown. The larva, which is about half an inch 

 in length, black on the upper surface, with a pale spot on the under edge 

 of the prothoracic ring, and furnished with six rows of stout spinulated 

 spines, is an inveterate foe to the larvae of the Colorado Beetle, and on 

 page 169 of the third volume of the Entomologist we have a most 

 graphic account of the summary way in which the young lady despatches 

 the grub. 



The Chiloconis ^/z7//;/^;7/j', Mulsant (see lig. 15) is an obese little 

 Fisr. 15. thing, with minute legs, of a black color, and beautified 



with two yellow spots. 



Such area few of the very many Lady-birds that creep 

 among our trees and adorn our Entomological cabinets. 



REMARKABLE VARIATIONS IN COLORATION, ORNAMEN- 

 TATION, &c., OF CERTAIN CREPUSCULAR AND 

 NOCTURNAL LEPIDOPTEROUS LARV^. 



BY THOMAS G. GENTRY, GERMANTOWN, PA. 



Having spent considerable time during the past season in the collection 

 and study of various larval forms of our twilight and night-fliers, I was 

 peculiarly impressed with the novel colors, markings, and external 

 structural characters presented by those that were taken late in the 

 autumn, at the period when the leaves were donning their autumnal hues. 

 To one who has rendered himself familiar with their usual outward 

 characters, a moment's inspection was sufticient to show a marked 

 contrast between those taken early in the season, when the leaves were 

 fresh and green, and those captured later, when the foliage of the trees 

 had sustained a check to their vitality. That these larval changes have 

 a producing cause it shall be my aim to show in the conclusion of the 

 present article. 



Of the many specimens taken by the writer during the past season, 

 and they were confined to but a few species of as many genera, none 

 exhibited these variations more clearly and prominently than Tdca poly- 



