158 THE CANADIAN ENTOMOLOGIST. 



as in the Arctiidse, except that there are none on the last segment. They 

 are small, purplish, each with a single black hair. Body green, with a 

 white subdorsal band. The feet are normal, divergent, but the larva 

 walks with a looping motion. Spiracles orange. 



Pupa. — Formed in a slight web just under the surface of the ground. 

 -Cylindrical ; the abdominal segments tapering ; wing cases very promi- 

 nent. Cremaster, two curled, knobbed, slender spines, surrounded at 

 base by several smaller knobbed spines. Wing cases coarsely creased ; 

 body punctured. Colour dark red-brown, the cases almost black; 



Food Plant. — Slippery elm ( Ulmus fulva). The larvfe rest on the 

 leaves, but throw themselves violently off with contortions if disturbed. 



This, as well as the two preceding species, from Dutchess Co., New 

 York. 



NOTES. 



HALISIDOTA TRIGONA, GRT. 



Mr. Dyar's note and Mr. Grote's reply, concerning the identity of the 



above species with specular is, H.-S., may make further notes interesting. 



Mr. Hy. Edwards informed me two or three years ago that Mr. Grote had 



redescribed Herrich-Shaefifer's species, and that he had a specimen. I 



suggested that he should print this note, and he promised to do so in 



connection with a number of other remarks on Bombycid species. The 



notes were not printed, and I made no reference to the matter in my 



catalogue. After Mr. Dyar's note appeared, Mr. Butler wrote me at some 



length giving the differences between the tropical species and North and 



South American forms, and mentioning others which he thought formed a 



distinct section at least of the genus. I saw Mr. Edwards afterwards, 



and stated Mr. Butler's indisposition to accept trigona as =^specularis. 



Mr. Edwards adhered to his original conclusion, and fortified it by stating 



that he had examined and compared the specimens in the British Museum, 



and felt sure he was right. The existence of several closely allied 



species is indicated by specimens in Mr. Neumoegen's collection, and it 



would seem to be hazardous to unite species from a comparison of a 



picture and description merely. Mr. Edwards's comparisons, made in the 



British Museum, stand on quite a different base, but we must wait until 



he gives us his notes before putting trigona into the synonymy. 



J. B. Smith. 



