36 ENTOMOLOGICAL NEWS. [January, 



rina diazoma is correctly referred here, though Mr. Kirby, fol- 

 lowing Prof. Smith's published opinion, has placed it among the 

 Zeuzeridae. 



There are no Bombycidae in North America, unless Bombyx 

 mori Linn, has really been domesticated, as is alleged. 



Family LACOSOMIDE. 



I propose this name for Lacosoma and the allied genera. These 

 have been associated with the Psydridae on the ground of larval 

 habits, but they are different in the structure of the moths. A 

 good family character is afforded by the position of vein 8 of the 

 hind wings, which is not united to the subcostal by a cross- vein, 

 but runs free and remote from it, much as in the Saturniidae. 

 These genera have been placed in the Drepanulidae by Mr. Kirby, 

 but on superficial resemblance only, which renders the reference 

 doubly unfortunate. 



The genus Antarctia Hub. being restricted to South American 

 forms in Kirby 's Catalogue, the North American species must be 

 variously distributed. A. rufula Boisd. will go to Spilosoma, 

 and will stand as follows, as none of the names seem worthy of 

 varietal rank: 



Spilosoma rufula Boisduval. 



pit net a fa Pack. 



proba Hy. Edvv. 

 vagans Boisd. 

 ptcridis Hy. Edw. 



A. Beanii and A. Bnicci are structurally near to Spilosoma, 

 but differ in minor points and markedly in coloration. They will 

 probably form a new genus when further studied. 



A. rubra Neum. differs from all the other species in lacking 

 the middle spurs of the hind tibiae. It superficially resembles 

 Phragmatobia, but differs in wing shape and in the pectinated 

 antennae. 



Elpis n. gen. Head retracted, tongue short, palpi obliquely descending, 

 eyes naked, $ antennae moderately bipectinate to the tips. Thorax as 

 broad as long; abdomen short, conic, scarcely exceeding secondaries: 

 posterior tibiae with a pair of short apical spurs. Venation of Phragma- 

 tobia on both wings; costa of fore wings slightly convex, apex acute, 

 outer margin straight, the anal angle rounded. Wing more than twice 

 as long as broad; hind wings elongate-ovate, less triangular than in 

 Phragmatobia. 



Type, Antarctia rubra Neum. 



E. rubra Neum. 



var. Walsinghami Butl. 



The species inhabits the western part of Oregon and Wash- 

 ington, doubtless extending its range into British Columbia. 



ENTOMOLOGICAL NEWS for December was mailed December 2, 1892. 



