98 THE CANADIAN ENTOMOLOGIST. 



A. Aceris Abb. &= S/ii. 



A. Hastulifera Abb. c^ Sin. 

 These species have not been identified satisfactorily by me. Harris' 

 species are posthumous and founded on the larvce alone. They cannot 

 in any event disturb the synonymy of species described before Mr. Scud- 

 der's pubhcation of Harris' Entomological Correspondence. For Abbot 

 & Smith's Aceris the name Acericola has been proposed by Guenee. If 

 Aceris A. & S. is Americana, which I doubt, then both Aceris and Aceri- 

 cola fall away before Americana of Harris. The North American species 

 of Apatela outnumber the European in the proportion of three to one. 



DESCRIPTION OF MATURE LARVA AND CHRYSALIS OF 

 NISONIADES ICELUS, Lintner. 



BY W. H. EDWARDS, COALBURGH, W. VA. 



On 2oth June, 1884, I found on edge of leaf of an Aspen, P. tremuloides, 

 a young larva of species of Nisoniades unknown. A small bit of the leaf 

 was cut on two sides perpendicular to the edge, folded over and stitched 

 down. At a little distance from this shelter a hole was eaten in the leaf. 

 Two days later the hole was enlarged and the larva evidently had left its 

 nest and returned to it after feeding. On 27 th June one moult was 

 passed, supposed to be the first ; on 5th July a second ; on 16th July a 

 third. This was the last moult, but I am not sure that one did not take 

 place between the 5th and i6th. It is probable there were four moults, 

 as N. Lucilius is reported by Prof. Lintner to moult four times. The 

 larva was kept in a jelly glass, and being always concealed in a leaf, a 

 moult might have escaped me. On 20th July, or 4 days after last moult, 

 the description was as follows : — 



MATURE LARVA.— Length tVo, greatest breadth (in middle) 

 iVV inch ; obese, tapering either way from middle, the dorsum elevated and 

 sloping towards 2 and 13 about equally ; color gray-green, caused by fine 

 whitish granulations on a pale green surface ; over all the dorsal region a 

 yellowish tint ; a mid-dorsal dark line from 4 to 1 2 ; a sub-dorsal white 

 stripe on either side ; no other markings ; segment 2 yellow (no black on 

 this segment) ; whole upper surface covered by a fine gray down ; head 

 sub-cordate, deeply depressed, broader than high ; color all light red- 

 brown ; the surface granulated, and covered with a fine down ; the ocelli 

 red-brown on a black demi-stripe. 



