MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 155 



Lophnptcriix 8tau<liiij;or, Cat. Lop. Eur., ]). ~'■^. I.S7I. 



Gnite, New Check List N. Aiiier. Mtitlis, p. 18, 1882. 



Sniitli, List Lop. ISor. Aiiicr., ]). 30.. 1891. 



Kirby, Syn. Cat. Le)). Hot., i, p. 60."), IS'JL'. 

 Xutoilonla (in part) ami T.opliojili riix ycnm. and Dyar, Trans. .\mer. Lut. Soc, xxi, pp. ISl, l!i(;. .huir, ISill- 

 .Joiiru. X. Y. Eiit. Soc, ii, pp. 11?,, Il.'i, Sojit., 1801. 



Moth. — Head moderately i)r()miiieiit: front iiiodeiately wide, the scales long and den.se, 

 in-ojectiug irregularly and fornung a slight median crest (most mariicd iu L. ((vierimiKC and the 

 European L. camelina); vertex slightly crested or very moderately so (in the European ciiriilla 

 and mmcUtut); palpi varying iu not exteuding beyond {elcgans) or surpa.ssing the front (cnmeliiui, 

 American example), loosely hairy, not very distinct from the front (much larger in camelina than 

 in dedans) ; third joint not very distinct iu clcr/ans, but quite so iu camelina. Eyes naked in elegans, 

 but in the European camelina and the American example distinctly hairy. Anteunfe in S with 

 short, stout, ciliated branches; in 5 thick, with more or less rudimentary branches (in ('/e//(-(Hs they 

 are slender, but distinct, acute, ciliated, but in the 5 of the two above-named European .species 

 the branches are nudeveloijcd). 



Thorax either simple (e%/flH.s) or somewhat crested, or (as in the European .species camelina 

 and the Wisconsin example) with a high di.stinct crest, sloi)ing backward and slightly inclined 

 forward. Fore wings with the costa regularly but slightly curved (elci/ans), or straight (in the 

 European species camelina, etc.); apex acute, square, outer edge a little bent and scalloped (less 

 distinctly so in ritciiUa); inner edge with a distinct or quite large {cainrliiia) tuft. Hind wings 

 trhingular, produced toward the apex; internal angle full and marked witli a brown patch 

 [eJeyans) or with two short parallel lines (in the European species camelinn and cncnlla). Venation : 

 Fore wings with a short scale; no triangular subcostal cell; anterior discal venule very oblicpie, 

 directed inward, the hinder ones curved, not oblicjue; the costal region very narrow in both wino-s. 



Legs very hairy, rather long, hinder pan- with a long stout tibial spur arising from the ba.sal 

 third. 



Coloration: The species are wood or reddish gray, with longitudinal streaks, especially 

 toward the costa, and either with (European species) or without transverse scalloped lines. Hind 

 wings clear whitish, with (in cleyans) a dark black patch at the internal angle. 



The species differ from those of Notodonta in the larger tuft on the internal edge of the fore 

 wings, in the more pointed fore wings which are sfpiare at the ajiex, and in the presence of a 

 subcostal cell, as well as in the distinctly scalloped outer edge of the wing. 



The genus is on the whole nearly allied to I'heosia, as seen in the venation, the shape of the 

 wings, the anterior pair being pointed toward the apex, with the outer edge very oblique, and 

 also in the markings, the fore wings in both having (in eleyaits) no cro.ss lines, and being striped 

 longitudinally with dark brown in the subcostal interspace, and (iu elcyans) with a conspicuous 

 bent silvery white stripe extending from the base of the wing along the internal vein. In camelina 

 there are two scalloped cross lines on the fore wings, converging from the costa to the tuft on 

 the inner edge; there are also no silveiy white markings. 



While we unfortunately know nothing of the transformations of our American species, those 

 of Europe have been tigured and described. The larva of the European L. camelina, which 1 owe 

 to the kindness of Dr. Ileylacrts, of Breda, Ilollainl, is characterized by two twin diverging high 

 dorsal papilhe or tubercles on the eighth abdominal segment, a very interesting feature, since they 

 probably represent what may have been the primitive d(nible nature of the hump or horn of 

 Pheosia and otlier larva' with a "caudal horn." The larva is not humped on any other segment, 

 and the body increases in thickness toward the eighth abdominal segment, as in Pheosia. I 

 .should regard, therefore, Lophopteryx as the more primitive genus, and .standing below Pheosia 

 and above Lophodonta, which has no hump at all. 



Mr. Hellins says the larva of L. camelina spins a cocoon of fine silk, covered with tine earth, 

 etc. The pupa ends in a small straight spike, tipped with four diverging tiny sharj) points 

 (Buckler's Larva' of British Butterflies and Moths, ii, p. Ui;3). The h\v\A of L. cucuUa has on 

 abdominal segments 3 to 7 slightly raised dorsal humps, and on segment S "a more prominent and 

 sharper hump, euding in twin points, wlncli are set with six liairs. "The larva of Z. canneliia is 



