MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 253 



side of the second joint. Fore wings witli black scales at the base and extending- along the inter- 

 nal edge of the wing; a black basal line interrupted by the cubital A'ein: a double black line on 

 the basal third of the wing composed of a large scallop in the discal and a larger one in the 

 subniedian space. 3Iiddle of tlie wing entirely clear ocherous. A long, much-curved linear discal 

 black mark, from the inside of which a long, broad, smoky, blackish shade curves around, interrupt- 

 ing the extradiscal line and ending near the internal angle, behind the inner end of the whitish 

 subapical patch; in its hinder end near the internal angle are three black slashes situated in the 

 interspaces, and from it a short narrow black line crosses the second cubital venule, and which is 

 bordered by a narrow white line. Extradiscal line double, a deep long scallop parallel to the discal 

 mark, and two short scallops in the first cubital space. The white subapical patch is unusually 

 broad, beginning on the first cubital venule and ending on the apex. A scalloped marginal black 

 line. Fringe ocherous, with dusky venular dots. 



Hind wings pale sordid whitish at base, becoming smoky externally, and crossed by a diffuse 

 whitish line which is slightly bent in the middle of the wing. No dusky spot at the internal angle. 

 The abdomen is pale ocherous. The underside of tlie wings is ocherous, the dark shade of tlie 

 fore wings appearing, though faintly. 



I have not seen the male of this ocherous form, but Harvey describes it as differing from the 

 2 "by the subterminal line being more unduhitory, by the less prominently contrasting brown 

 and whitish shades beyond the cell subterminally, while tlie antenniB are pectinate." 



Expanse of wings, S 33mm., ? 35 mm.; length of body, 5 16-17 mm. 



Geographical (lisfrihution. — Apparently mostly confined to the Austroriparian subprovince, 

 but occasionally met with in the Appalachian. 



Central Alabama (Grote); Bastrop County, Tex. (Belfrage, U. S. Nat. Mus., the label being in 

 his handwriting) ; Punta Gorda, Fla. (Mrs. Slosson). (The exact locality of celt qyJiaija was not given 

 by Dr. Harvey); New York, Missouri, Alabama (French); superba, Texas (French); Chicago, 111. 

 (Westcott); Arkansas (Palm). 



Heterocampa hydromeli (Harvey). 



(PL V, fig. 16.) 



Litodonta hydromeli Harv., Can. Ent., viii, p. 5, Jan., 1876. 



Litodonta fiisca Harv., Can. Ent., viii, p. 110, 1876. 



ItydrotneJi Grote, New Check List N. Amer. Moths, p. 10, 1882. 



Smith, List, Lep. Bor. Amer., p. 31, 1891. 



Kirby, Syn. Cat. Lep. Hot., i, p. 563, 1872. 



Neuni. and Dyar, Trau.s. Amer. Ent. Soc, xxi. p. 208, 1894; .Touni. N. Y. Ent. Soc, ii, p. 117, 

 Sept., 1894. 



Moth. — One $ and four 9 (in the Edwards Coll ). Antenn;?, palpi, and vestiture of the head 

 above and in front Just as in H. suhroiaia, but the pectinations of the antenme are a little longer, 

 though the shape of the wings and the markings are just the same. The antenna? are white 

 above, with a black dot at base. Front of the head more hairy and with longer hairs than in 

 H. aniarte, but the palpi are not so long, though very near in shape, black above and gray beneath. 

 Tegulib edged with black, as in H. superba, and the crest on the niesothorax as in II. superba and 

 astarte and allied species. Fore wings and body of a pale and whitish gray, tinged with a decided 

 sea or pale olive green. Thorax with two curvilinear black lines, one on each side on the ])ro- 

 tborax, meeting in the middle of the body. Thorax behind with black cross lines, and the tufts 

 and tegula?. tipped with black. 



Fore wings short and broad, the apex more rectangular than usual except in superba ; olive 

 and yellow scales at base of the wing, the irregular patch interrupting the basal black line, which 

 forms a diffuse patch between the origins of the cubital and submedian veins. Just beyond is a 

 transverse sinuous dark line, curving suddenly inward on the costa, curving outward on the 

 subcostal and cubital veins, and curving in again in the submedian space, then directed obliquely 

 outward and ending on the inner edge of the wing. From the angle on the submedian fold a 

 narrow interrupted line extends along the internal vein to the black line situated on the inner 

 third of the wing, and which is very sinuous, and euds in a black patch both on the costal and 



