AMERICAN LEPIDOrTERA. 309 



pears to have had the true Noctua Hatuey Poey^ before him and to have 

 correctly separated Dyops confligens Walk. {Dyops Hatuey Guenee?) 

 from that species. A single species inhabits our Territory and is known 

 to me in Nature. This is Dyops futilis G. & 7?., from Florida. In 

 the representation of this species only one palpus is indicated by the 

 Artist; an error caused by the fact that but one remained on the only 

 specimen of the species known, after its dissectional study. As remark- 

 ed at the time of its description, the presence in Florida of a species 

 congeneric with West Indian forms, shows the near relationship of the 

 Lepidopterological faunae of the Peninsula and the West Indies. 

 The synonymy of the three species of Litoprosopsus is as follows : 



LITOPEOSOPTJS, m. 

 L. hatuey. 



Noctua Hatuey Poey, Cent. Lep. Cuba. 

 Dyops Hatuey Walk., C. B. M. Lep. Het. p. 855. 

 5ai;Vaf.— "Cuba" Poey. "St. Domingo" Walk. (1. c). 

 L. confligens. 



Dyops confligens Walk., C. B. M. Lep. Het. p. 856. 

 Dyops Hatuey Guenee, Sp. Gen. Lep. Vol. 2, p. 284? 

 Hahitat. — "Honduras;" "West Coast of America/' Walk. (1. c). 

 L. futilis. 



Dyops futilis Grote and Robinson, Trans. Am. Ent. Soc. Vol. 2, p. 202, fig. 73. 

 5a6ito^.— "Florida'' (Linden leg.) G. & R. (1. c). 

 On pages 524 to 528 in the third Volume of the Proceedings of the 

 Entomological Society of Philadelphia, I described four species of Am- 

 erican Noctuidae under the genus Noctua as amended by Gruenee in 

 the Species General des Lepidopteres. The genus is not distinguished 

 by recent authorities from Agrotis and I now refer these species to 

 Treitschke's genus. The four species are: Agrotis brunneicollis 1. c, 

 Plate 5, fig. 5; Agr. cupida, 1. c, Plate 5, fig. 7; Agr. alternata, 1. c, 

 Plate 5, fig. 8; Agr. vittifrons, 1. c, Plate 5, fig. 6. 



I have elsewhere erroneously referred the Noctua lubricans of Guenee 

 as identical with our common Agrotis clandestina {Noctua clandestina 

 Harris), a species found under the loose bark of trees in company with 

 Amphipyra. A. clandestina is nearly allied to Agr. brunneicollis, while 

 M. Guenee's species is totally diiferent in form from these, and hardly 

 belongs to this genus. I discovered my mistake during a visit to M. 

 Guenee at Chateaudun, and afterwards verified this correction by an 

 examination of M. Guenee's type in London. The deceptive coloration 

 of M. Guenee's badly drawn figure of N. lubricans, together with points 

 in the description which agreed with A. clandestina, induced my earl- 

 ier reference. 



