io6 



interspaces much longer, owing to greater length of wing; discal ven- 

 ules situated on inner third of wing, the discal space being unusually 

 small and discal spot forming a mere dot. Costa of hind wings and 

 venation similar to Lasiocampa, but the base of costa is much less con- 

 vex. Legs long and stout but less hairy and the body much less 

 woolly than in Lasiocampa. 



This remarkable genus is the type of a separate section of the Lach- 

 NEIDES (Lasiocampad^ of Duponchel ) from Gastropacha and Clisio- 

 campa. but for want of material, I have been obliged to compare it with 

 Lasiocampa alone. That it belongs, however, to this sub-family, is 

 evident by the form and peculiar squamation of the antennae, form of 

 head and venation, so well marked in this group, and form of costa of 

 hind wings." A. S. Packard Jr. loc. cit. 



To the description of the species Dr. Packard adds: "It is more 

 nearly allied to Gastropacha ? Otus (Drury) Westwood's edit. {Bombyx 

 Agrius, Oliv. Ency. Meth. 5, 39, 56, Westw.) from Smyrna, than any 

 moth with which I am acquainted. It agrees closely in the general 

 form of the body and wings, with the same style of markings. That 

 is a (? , while G. Arizonensis is a 9 , and differs in the longer and more 

 rounded hind wings, the body not extending so far beyond the wings as 

 in G. Otus. ' ' That Dr. Packard is right in creating for this fine insect 

 a new genus I have no doubt whatever, though it is very closely related 

 to Lasiocampa, and more particularly so to the species known as L. Pini, 

 L. But, as formerly understood, the genus Lasiocampa of Euro- 

 pean authors is liable to create confusion, including as it did, the 

 genera now separated under Gastropacha, Clisiocampa, Odonestis, 

 Bombyx and others. Dr. Packard, if I apprehend him righdy, takes 

 this view and confines Gastropacha, Ochs. to the species which have 

 somewhat foliaceous wings in repose, as G. Quercifolia, L. and our G. 

 Americana, Harris; Clisocampa, Curtis, to the tent caterpillars, feed- 

 ing in large webs and in societies, as C. Neiistria, L. of Europe, and 

 our own C. Americana, Harris; Lasiocampa, Odonestis and the rest 

 having no true North American representatives. Otns should certainly 

 form the type of a new and distinct genus, the antennal structure serv- 

 ing to distinguish it. These are widely pectinate at the base in the $ , 

 becoming suddenly finely so at the apical third, reminding us strongly 

 of the structure of the antennae of Cossus. In the shape of the wings 

 and other characters, it is near the African genus Lebada. 



Gloveria, as has been said, approaches most nearly to Lasiocampa 

 Latr., and by some entomologists may possibly be regarded as only a 

 sub-genus. From the $ , in addition to the characters already given 

 by Dr. Packard, the following may be noted, the more remarkable 

 features being marked in italics: 



Fore wings very broad from internal angle to apex, and more dis- 

 tinctly rojinded on extertial margin than in Lasiocampa, though in our 



