MEMOIKS OF TIIK NATIONAL ACADEMY OF SCIENCES. 99 



Loiifitli of larva, 41 nun. at matnrity. 



Cocuon. — Spun ainonj; loaves. It is conijxi.scil of giuiiniy silU, slinlit. Imt Idiil;;.. , 



I'lqta. — Nearly cyliuilrical, rounded, no creniastor; abdunirn imiictnri'il, cases coarsely creased ; color unil'orm 

 dark lirown, nearly black. Length, 17 mm.; width, (i mni. 



Fund plants. — Poplar { Poititlus iremuhndcA and /*. htOsamifera), Larva- iVoni Vosemite. (!al, (Dyar.) 



Dr. Dyar tells me- that lie lias fouinl at Keciie Valley, New Vorlc, tlie larva of G. ai-iiiuiciila 

 or slossoiiiw, which is exactly like that of (/. .seiH'ra, described above. 



Subfamily II. — Apatelodin.e.' 



Head more proiuiiieiit than in the previous fauiily: autenna? well pectinated to the tips; jtalpi 

 large, stout, ascendiiii;', reaching well beyond the front. Fore wings triangular, falcate, and witli 

 the outer edge bent in front of the middle on the sixth subcostal venule. Ilind wings with the 

 apex much rounded. Ilind legs very thick, the femora oval. 



Larva cylindrical, almost entirely concealed by the long wooMike hair, through which arise 

 long pencilsof hairs; in aiu/cUra, hairs short. Freshly Initched larva, clothed with long white hairs. 



The reference by Mr. Druce (liiologia Oeutr. Amer., p. 208) of this genus to the Lasiocaiupidie 

 seems to us to be quite erroneous, as the venation is truly Notodontian and very unlike that of 

 any of the Lasincainpida' known to us, in all of which there are four branches of the cubital veiu 

 of both wings, and no bristle (frenulum) on the hind wings. The larva does, however, have a 

 superficial resemblance to that of some Lasiocampit. Let the reader compare the A'cnation of 

 Apatclodes with that of Iclithyura and Nadata. The end of the abdomen is also tufted much as 

 in Ichthyura. Apatelodes also spins no cocoon. Acronyctodus of Edwards is closely allied; the^ 

 single species known is from Vera Cruz, INIexico. 



Apatelodes Packard. 



(PI. XXWIII. figs. 5, 5a-5c, venation.) 



Phala'na, Abbot and Smith, Nat. Hist. Lep., Georgia, p. l.")l, 1797. 



Pijqura (m part) Hiibn., Verz. Schmett., p. 162, 1><1(3. 



I'ntalliiiris Hiibn., Verz. Schmett., p. 158,- 1816. 



Apaleludes Packard, Syn. Bombycid;E U. S., Pt. II, Proc. Ent. Soc. Phil., p. 2.53, Nov.. ISIU. 



Grote, Check List N. A. Jloths, p. IS, 18S2. 



Driicc, BiologiaCcntr. Amer., PI. LVI, p. 208, March, 1887. 



Smith, List Lep. Bor. Amer., p. 29, 1891. 



Head moderately iironiineiit, the front rather broad, more so than usual, subtriangular, the 

 hairs clothing it rather uneven and loo.se. Aiiteinne in i evenly branched to the end, but the 

 pectiuatious shorter than usual, about as long as the thorax. Palpi large, thick, stout, slightly 

 ascending, reaching well beyond the front, tips broad; third joint minute, nearly concealed, not 

 distinct from second Joint. Eyes naked. 



Thorax simple, not tufted. Fore wings triangular; nearly one-half as broad as long; in the 

 5 much broader; costa straight, much curved at the apex; outer margin hollowed just below the 

 apex, rendering it unusually falcate. Below the ajiex the outer edge of the wing is oblique, not 

 indented, but making an obtuse angle with the straight inner edge. Costal vein extending nearer 

 the apex than usual. First, second, and third subcostal venules suddenly detlexed upon the 

 costa very near each other. Apical interspace broadly triangular. The fourth and fifth subcostal 

 venules of the same length; no subcostal cell. Discal area short and broad; the discal venules 

 situated within the middle of the wing; the posterior discal venule oblique, though curvilinear. 



Hind wings large, full, and rounded on the outer margin, of an irregular pentagonal form 

 reaching nearly to the tips of the abdomen. Both discal venules very oblique, especially the 

 hinder one. Tibia- with broad flat concavo-convex tufts. Femora den.sely pilo.se, giving the joint 

 an oval form; hind tibia- with dense scales, making it unusually broad, with four large spurs. 

 Abdomen of i slender, with a tuft on each side of the tip. 



Coloration, no di.scal spot; with gray-brown transverse lines and blotches. 



The genus is easily recognized by the broad, very falcate foi-e wings, their peculiar venation, 

 and by the unusually broad hind tibiie and the large tufts at the end of the male abdomen. 



' This name was proposed by me in MS., but Xeumoegen and Dyar afterwards published it lu 1894; the fact that- 

 it was proposed by two different authors shows that it is well founded. 



