MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. liJO 



Packard, Anier. Naturalist, iv, p. 226, PI. II, figs. 2, 2a, June, 1870. 



Fifth Rep. IJ. S. Eiit. Comm., Forest Insects, p. 155, 18<I0. 



Proc. Boat. Soc. Nat. Hist., xxiv, pp. ,534-539, 1890. PI . IV, li';s. 1-6 (Stages 1-V figured). 



Jouru. N. York Eut. Soc., i, pp. 69, 70, .June, 1893. 

 sulci/, in Packard's Rep. For. Ins., Fifth Rej). IT. S. Eut. Comm., p. 155, 1890. 



Moth. — Head gray, vertical tuft above black. Thorax reddish brown, patagia blackish above. 

 So distinct line on the protliorax. Priniaries reddish browu, iiervules black. Base of the costa 

 dark, beyond cinereous with brown scales along the edge, which become indistinct waved lines 

 continued across the wing and are more oblique beyond the discal dot. One of tiiese scalloped 

 lines two-thirds of the way from the base of the wings to the discal spot is more distinct than the 

 others, with a distinct scallop in the discal space. The linear reddish browu discal dot is 

 surrounded by gray, and below and beyond is a dark, rather broad discoloration curved around it. 

 Beyond this the black nervules are interrupted by gray scales. Tliere are two obscure series of 

 reddish dots near the margin in the interspaces. Opposite the outer series of these spots the 

 fiingc, otherwise ferruginous, is of a dirty white. Secondaries sordid white, discolored with 

 smoky brown at inner angle. Tlie large tuft beneath the head is lilac-ashen. Beneath, the fore 

 wings are white, smoky in the middle. Oosto-apical dots distinct. Fringe white, black at the 

 ends of the nervules; at the base are white dots in the interspace. Secondaries entirely white, 

 except the dusky spot on the inner angle. Legs ashen, ends of the scales dark, tarsi broadly 

 annulated with dark. Abdomen slender, whitish, a narrow mesial line beneath. 



In the female the markings are more distinct. The two series of ferruginous waved or scal- 

 loped lines on each side of the median region are more distinct. The submarginal ferruginous 

 region is more broken up by aslieu scales. The secoudaries and abdomeu above smoky brown, 

 with a pale mesial diffuse band ending on the inner edge in a diffuse, oblifiue, sordid, whitish band, 

 bordered on each side by sordid white. There are faint traces of a slight mesial fascia across the 

 wing. Beneath, both wings are dark smoky. A light ferruginous line ou the abdomen, which is 

 itself larger than in the other species. Expanse of wings, male. So— 13 mm.; female, 40 mm. 

 Length of body, male, 17-24 mm.; female, 20 mm. 



('a'lixhaii/n cincreo/rons Pack., as stated by Grote, is undoubtedly a variety of this species, now 

 to be referred to the genus Schizura. It differs in the costal region of the fore wings, except at 

 the base, being ash-gray, with a slight lilac tint; the inner edge also being grayish, the middle of 

 the wing from the base to the outer edge being dark brown. The following notes on the larva of 

 this variety were received from Professor liiley, and published in our lieport ou Forest Insects, 

 1890, p. 155 : 



June 20, found on oak two very small larv;e. Tvhicli entered the ground July 8 and emerged as moths July 30. 

 Color of larva as follows: Second ami third segments grass-green; the horn of the fourth segment is l)iforked and 

 the tips blood-red, also the tips of the two smaller horns on joints S and 11. The rest of the body and head reddish- 

 brown. 



S. telifer (Crote) is only a variety of »S'. ipomca', with two long, distinct, black streaks, one 

 passing through the discal spot and the other extending along the submediau vein. 



The eggs were kindly sent me by Miss Emily L. Morton, who obtained them at Newburg, 

 N. Y., from a female SchizKra ipomea' [Ca-lodasijn huiuttnta Pack.) of the normal form mated with 

 a male of the variety C cincreofrons Pack. Miss Morton informed me that a male of the normal 

 Chlijuttdia was also attracted. The eggs were laid July 11 and hatched July 17; the first molt 

 occurred July 19-24; the second on August 1-2; the third August 0-7; the fourth August 16-18; 

 the date of the last molt not noted, but about four or live days later. 



E<j(j. — One mm. in diameter. I'erfectly hemis|)herical in shai)e, with the surface marked ou 

 the sides and near the base with miuute polygonal areas which toward the top become gradually 

 smaller, with minute beads at the angles; the top of the egg is smooth. 



FifHt stdfjc, larrajifst Imtchcd, — Length, 2-3 mm. It shows an approach to the characters of 

 the firlly fed larva iu the uplifted small anal legs and the tubercles on the segments, though those 

 characteristic of the last stage are not specialized. 



The head is enormous in iJioportion to the size and width of the body, being twice as wide as 

 the thoracic segments; it is well rounded, lather short antero-posteriorly ; full and rounded ou the 

 vertex, rounded, not angulated, above, and iu color dark amber. 



