164 MEMOIRS OF THE RATIONAL ACADEMY OF SCIE^vCES. 
Notodonta Ocliseulieimer. 
(PI. Xhl, fig. 6; XLII, fig. 1, venatiou.) 
Notodonta Ochs., Sclimott. Eiir., ii, p. -15, 1810. 
Hiibuer, Verz. Schniett.^ ]>. 146, 1816. 
Hijlesia (iu part) Ilubnor, Verz. Schinett., p. 186, 1816. 
Notodonta Boisd,, Gen. et Tiul. M(51h., p. 86, 1810. 
and Peridiaj Duponohel, Cat. Metli. L^p. Eur., p. 91, 1844. 
Notodonta IleiT.-Schaeftbr, Syst., Bearb., Sidimett., Eur., ii, 1845. 
IValk., Cat. Lop. Het. Br. INIus., v, p. 995, 1855, 
Pack., Proc. Ent. Soc. Phil., iii, p. 356, 1864. 
Stand., Cat. Lep. Eur., p. 72, 1871. 
Grote, Chock List N. Am. Moths, p. 18. 1882. 
Smith, List Lop. Bor. Amor., p. 30, 1891. 
Kirby, Syn. Cat. Lep. Het., i, p. 599, 1892. 
(in part) Xciitii. and Dyur, Trims. Amer. Eut. Soc., xxi, p. 184, June, 1894; Journ. N. Y. Ent. Soc., 
ii, p. 113, Sept., 1894. 
Moth. — TTeiul uofc i)roinineiit; front rather narrow, its vestiture long and loose, forming a 
median crest between the antenine; the latter pectinated to near the tips, often with short stout 
branches wliich are ciliated at the end; the joints in $ simple; a tuft of scales at the base of eacii 
antenna. Maxilhe slender, about the length of the fiout. Palpi xiorrect, reaching to the front, 
moderately stout; third joint not very distinct from the second, which is haiiy beneath. Eyes 
hairy. Thorax smooth, not tufted. Fore wings a little less tiian one-half as broad as long; costa 
convex near the base and toward the apex nnn^h more rounded than usual; outer edge oblique, 
nearly as long as the internal edge; the apex much more rounded than usual; internal edge full 
near the base, with a prominent tuft in the middle, Yenatioii: Costal region rather wide; no 
subcostal cell; fourth subcostal venule long; discalveiu transverse, not oblique, eacli vein curved; 
those of the hind wings oblhpie, botli iu the same line, not being obli(|ne to each other. Legs 
densely hairy. Abdomen rather full, simple at the end. Coloration of the species usually gray, 
with reddisli brown markings, and usually a discal spot. 
The species of this genus differ from those of the allied genera in tlie well-rounded apex of 
the fore wings, the feebly i)ectiuated antenna*, the branches being short and ciliated, in the tuft 
on the inner edge, and in the liresence or lack of a subcostal cell, while the outer edge of the 
wings is not scalloj)ed. 
I find that although our N. strar/nia iu its larval and most of its adult structural characters is 
closely related to the European N. ziczae, yet the latter has no subcostal cell, though one is jn'eseut 
iu N. stragula (three S examined). In N. sim])lnrin^ however, there is no cell. In larval characters 
our A. stragula agrees with the European X, dromedariuSy tritophu-s, and ziczac. 
Larva. — Head large, square; a large high nutaut bump on second and a lower one on third 
and a very prominent one on eighth abdominal segment, the latter ending iu two tubercles. Anal 
legs long, but used iu walking. The European species have Irom three to five hunq)s. In the 
European N. ziczac there are, judging by Buckler’s figures, as in onr species, but three humps; iu 
N. tritophuH there are four, while the larva of N. dromedarius most approaches Xerice iu having 
five hum})s, four on each of the four basal abdominal segments and one outlie eighth. 
Pupa. — ISo distinct cremaster, the body being smooth and rounded at the end. 
Geographical diHiribntion. — It is interesting to notice that iu the European forms (and iu 
Europe there are more species than iu ^North America) there is a tendency among the species, 
which vary in the nninber of dorsal humps, to fill up the gap between the genus Xotodonta and 
Nerice. Iu fact, the latter genus exists iu northeastern Asiad aud this fact adds another point of 
resemblance between the fauna of uortheasteru America and northeastern Asia. 
SYNOPSIS OF TUK SPECIES. 
Fore wings rounded, mouse-gray, with reddish hrowu spots; no cross lines; tuft narrow, pointed; a distinct 
linear discal spot N. stragula 
Ash-gray, with no brown ; fore wings with two dark scalloped lines N. simplaria 
^ Nerice davidi Oherthur, from the north of China. 
