104 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Larva (fall fed). — Head siibrotund, dark brown, and two lines on the iVont lifjhter brown. 

 Body with the thoracic sejjinents taperinji'; terminal segments taperinj;' and flattened posteriorly; 

 vential region Uattened, the anal legs ])r()jecting behind. Color of the body, gray; numerous One 

 black linings, among which may be traced two foruiing a vascular stripe and two simdar lateral 

 strii>es on each side. On segment 1, anteriorly, are four dorsal wjiite lines; posteriori}', black; 

 segment 1' is black anteriorly, behind which are irregular black linings ; segment 3, as the preceding 

 oue; on segments 5 to 10 the dorsal black linings assume a V shape, the apex resting on tbe suture 

 and iiick)sing centrally two yellow-green siibelliptical spots, with a similar spot exterior to each 

 within the sui)erior lateral stripe. 



From the first segment long whitish brown hairs project over tiie head, nearly concealing it; 

 from the middle of the second and third segments whitish hairs project forward, of which those 

 on the latter segment are shorter and arranged somewhat in tufts, beneath which, when extended, 

 some short, stifl', red hairs are seen; laterally below the stigmata are two rows of fascicles of white 

 hairs of uner|ual length, mingled with a few longer brown ones, extending rectangularly with the 

 body until to its middle, whence the remainder art; directed backwiird; from the terminal segment 

 white and browu hairs, of greater length than elsewhere on the body, project horizontallj', brush- 

 like, backward; short whitish hairs are scattered sparsely over the body. (The larva escaped 

 before its description could be comi)leted, and the remainder is from memory.) On the vascular 

 lino oil each segmeut is a tuft of black hairs about (1.0(1 inch long, the ends of which converge to a 

 point. The prolegs project laterally, almost hidden by the hairs. Ventrally is a broad fuscous 

 stripe. (Lintner.) 



Habits. — Lintner found eight or ten larvie near Albany, early in September, feeding on the 

 ash, aud Mr. Meske collected them from the lilac (Si/riiujii ruh/arin). When not eating, they 

 usually occurred resting on and closely appressed to a twig. The first trausformatiou to a pu]ia 

 was on September 14. The larva lias a marked gastropachau aspect. (Lintner.) 



Fdixl phiitix. — Ash and Syringa. 



Geof/yaphicul distribution. — Medford, Mass. (W. II. Dall, Mus. Comp. Zool. Cambridge); 

 eastern New York (Lintner, Meske); Plattsbiirg, N. Y. (Hudson); Middle Atlantic States (Grote, 

 Coll. Anier. ICnt. Soc. Phil.); Ontario, Canada; New Y'ork, >"ew Jersey (Palm); North Carolina, 

 Ohio, Irvingtou, 111. (French); Enterprise, Fla. (Thaxter). 



Var. indistincta H. Eilwaiils. 



Apaie.lodea indistinclii Edw. Ent. Aiiier., ii, p. 13. April. is8(i. 

 Siuitb, List Lep. Bor. Amer., p. 2;t, 1891. 

 Kirby, Syii. Cat. Lep. Hot., i, p. 852, 18'J2. 

 Var. hidintincia, Ncum. ami Dyar, Traus. Auut. Eut. Soc, p. 181, 1894. 



Primaries of a grayish drab, tinted with reddish, the lines and marks all obsolete: the 

 surface dotted with black irrorations. There is near the apex a semitrausparent sijuare spot, 

 with a smaller one beneath it. The fringe is reddish chestnut. The secondaries are reddish 

 testaceous, without marks. Cnderside wholly reddish fawn color, with a few black and brown 

 specks, but wholly without the dark shading so consiiicuous in ^1. torrc/actd. Thorax color of 

 primaries. Abdomen reddish testaceous, with brown dots. Expanse of wings, .'Jo mm.; length of 

 body, IS mm., IS. Indian liiver, Florida, Coll. P. Neumoegen, (Ent. Anier., ii, p. 13); Florida 

 (French). 



Subfamily 111. — Pyu.ekin.e. 



Head rather large, the front rather broad; the antenna' ciliated, not pectinated in the male. 

 The body and wings are usually, and in all the species of Dataiia, reddish ochcrous, the fore wings 

 being crossed by from four to five straight parallel lines. Egg oral cylindrical, smooth; top 

 depressed. 



Larva brightly banded and very hairy; no tubercles, the body being smooth. They spin 

 no cocoon, but pupate deep in the earth. ' 



' Harris says of D. minisira: ''When ready to transform, all the individuals of the same brood quit the tree at 

 oiici', dcstoiidiu}; by night, and burrow into the ground to the depth of 3 or 4 inches, and, within twenty-four 

 hours afterwarils, cast their caterpillar skins, and become clirysalids without iiiaking cocoons. They remain in the 

 ground in this state all winter, auU arc changed to moths and come out between the middle and end of July." 

 (Treatise, p. l.^O.) 



