3ie:moiks of the xatio:s^al academy of sciences. loi 



spot present, the apical region being reddish brown. Within is a re.eularly curved light line. In 

 the middle of the wing is an obsolete reddish line. 



Hind wings discolored with red along the median vein, there bending into the middle of the 

 internal margin: this is faintly continued upon the costa. A submarginal white line. Fringe on 

 the internal angle, reddish brown. The lateral tufts on the end of the abdomen reddish brown. 

 The female only differs in the much broader wings. 



Expanse of wings, i 4.") mm., 9 50 mm.: length of the body, S 20 mm., 2 24 mm. 



Var. tloriilaiia Edwards, much redder, lines fainter, the discal whitish spots more clearly 

 defined. Beneath, wings foxy red. (Coll. Amer. Mas. ^at. Hist.. Xew York, and Coll. Xeunioegen.) 



The following notes are based on the sketches and uotes made for me by Mr. J. Bridgham, 

 who kindly preserved for me in alcohol specimens of the two later stages, from which, with the 

 aid of his excellent drawing, the following description of those two stages were drawn up. It 

 appears that there are six larval stages. 



Egg. — The eggs were laid on the wild cherry June 22, and hatched July 9; another lot 

 received from Mi.ss Morton, hatched July .5-0. They are much flattened, resembling a very 

 shallow invei'ted i)latc, with sloping sides. The siu-face appears as if covered with overlapping 

 rings, each inclosing a circle of five, six, aud sometimes seven spines. . Diameter, 1 mm. 



Miss Caroline C Soule describes the eggs as at first green, and five days later sordid 

 yellowish white, circular, flat on both top aud bottom, translucent, and looking like tiny gelatine 

 lozenges, 1.5 mm. in diameter. 



Larva, Stage I. — Length, 4-5 mm. Head and body pale greenish white or whitish flesh, with 

 no black or dark marks; head moderately large: body covered thickly with long white hairs, 

 mostly curled, which arise in irregular and scattering tufts from four dorsal and three lateral 

 tubercles; the hairs arising from the thoracic are rather longer than those from the abdominal 

 segments. 



Larva. Stage II. — Length, ti mm,, July 1(3, Much as iu the first stage, the hairs a little 

 denser, and the head and body still whitish, with no dark spots. 



Miss Soule says that after the first molt the larva becomes " even whiter and flurtiei- than 

 before, with a dorsal line of black dashes, and a dark pencil on the tenth segment. A few had gray 

 hairs over the head."' 



Larra. Stage III. — Length. 11 nnn., July 25, Color of the head and body the same, but the 

 woolly white hairs on the thoracic segments appear to be thick and matted. Xow appears along 

 the back of each abdominal segment a conspicuous black dash, and from the eighth abdominal 

 segment arises a long, slender, tapering black pencil, whicli projects backward. 



Miss Soule .says: "As before, with the addition of a gray pencil on the second au<l third 

 segment." 



Larva, Stage IV. — Length, 20 mm., August -i. The head is yellowish white, but the body 

 slightly pale gray. From the second and third thoracic and eighth abdominal .segments arises a 

 black pencil, each about the same length as the other, viz. about twice as long as the thickness 

 of the body; the anterior pencil points forward, the two others backward. The interrupted black 

 dorsal stripe is as before. 



3Iiss Soule states that in this stage •• a lateral and subventral Hue of black arrowheads 

 appeared. One larva became l)right yellow, with the pencils tan coloreil, with black tips, and one 

 was of a soft gray, with black pencils." 



Larva, Stage V. — Length. 27 nun.. August 7. (This and the last stage described from alcoholic 

 specimens as well as from Mr. Bridgham's colored drawing.) Head normal, rounded, the sides 

 and top somewhat swollen, the median suture somewhat depressed: of a peculiar white-flesh color. 

 Prothoracic segment without a pencil or a lateral black patch; second thoracic segment with two 

 coutiguous i-ouuded tubercles from which arise two long pencils whose hairs blend together to 

 form a common median deep ocherous pencil inclined forward, becoming black at the distal 

 third. Third thoracic segment with a similar pencil inclined backward. A -similar median 

 pencil on the eighth :ibdominal segment. There is now a dorsal row of six long median black 

 stripes on abdominal segments 2 to 7. Between these spots arise a pair of dorsal pencils 

 composed of curious long spindle-shaped flexible black hairs, pale at the base, which taper from 



