98 [Junk 



growth, aad the fine European collection in the Cambridge Museum, 

 have been of essential service in comparing those genera common to 

 both countries. Its collections also contain numerous specimens col- 

 lected mostly about Cambridge by Mr. A. Agassiz, a few collected 

 by J. A. Allen of Springfield and A. P. Cragin. The Californian spe- 

 cies mentioned below were in part collected by Mr. Agassiz, and form 

 but a small portion of the valuable collections of insects which he made 

 in that State. Mr. Edwards also placed in my hands a small collection 

 from San Francisco, which was formed, I believe, by Dr. Behr of that 

 city. 



Dr. Harris' collection was especially rich in Limacodes and allied 

 genera, and in the Notodontians, and for an opportunity of consulting 

 this collection at a time when it was not generally open to the public, 

 I am indebted to the kindness of the Curator of Entomology, Mr. 

 Scudder. Dr. Harris' MSS. descriptions and drawings of the members 

 of this family have been often of aid in limiting and grouping the 

 genera. 



Subfamily Lithosiin^ Stephens. 



HYPOPREPIA Hiibner. 

 Hypoprepia fucosa Hiibner. 



Hypoprepia fucosa Hubn., Zutr. Dritt. Hand. p. 21, fig. 471, 472. (1825). 

 Lithosia miniata Kirby, Fauna Bor.-Amer. Pt. IV, p. 305. (1837). 

 G-nophria vittata Harr., Rt. Ins. Mass. p. 241. (1841). 

 Hypoprepia fucosa Walk., B. M. Cat. Lep. p. 487. (1854). 

 Lithosia miniata Walk.. B. M. Cat. Lep. p. 512. (1854.) 

 Atolmis tricolor Fitch, Third Rt. Ins. N. Y. p. 168. (1856.) 

 Atolmis? miniata Clemens, Proc. Acad. Nat. Sc. Phil, p, 543. (1860). 

 Grnophria vittata Morris, Synopsis Lep. N. Amer. p. 256. (1860). 

 Hypoprepia fucosa Hiibn. Morris, Syu. Lep. N. Amer. p. 303. (1860). 



Maine (Verrill). Mass. (Sanborn, Shurtlefi"). Mich. (Miles). 



Hypoprepia Packardii Grote. 



Hypoprepia Packardii Grote, Proc. Ent. Soc. Phil, ii, p. 30, pi. 2, f. 5. ;1863). 



LITHOSIA Fabr. 

 Lithosia argillacea n. sp. 



Slate-color and yellow. Lustrous slate-color. Palpi yellow, with a 

 few slate-colored scales near the tips. Prothoras yellow, continued 

 on to the costa of the primaries on the upper and under side of the 

 wing, nearly to the apex. Costa of secondaries also tinged with yellow. 



