202 



MEMOIRS OF TITE NATIONAL ACADEMY OF SCIENCES. 



being' poilitt'd ;iik1 



Fig. 77.— Pilim of Srln'zura leptiiwi- 

 rfc". Diir.sal vifw i)f head. c. /., with 

 till' cocnnn ciittoi": a/if, antenna; pth. 

 prfithorax: K/i. spiradp. 



It (litVers from ;iiiy other species known to nic in hicking any green color on tlie thoracic or 

 other seyiiuMits of the body. 



The larva of iS. mustelina described by Professor French is said to be 0-.S(l incli in length, and 

 "the sides of Joiuts 3 and 4 are bright green," otherwise it ai)pears to agree wilii our s])c(iniens of 

 IrptinoifJcs. Probably the specimens described by I'^rench, which weie under size, were in next to 

 the last stage, or at all events had retained the green coloring of the earlier stages. He raised 

 three moths from his larvie. (Dr. Dyar writes me that French's larva is evidently <S'. nniconiin.) 



Cocoon. — The caterpillar fastens leaves together for a cocoon, within which it changes. 

 (French.) It is oval, made of silk, uniformly thin, though dense and jiarchment like, and my 

 Maine specimen spun between leaves. 



Pupa. — Two 9 . Body rather stout, of the usual color. It is noteworthy from the head 

 ending in two stout conical spines, or cocoon-cntters, arising from the 

 epicrauiuni between the eyes. Cremastei' ending in two stout sjtines, 

 flattened vertically, and ending in four or live slightly curved, short, 

 sharj) spinules, with a minute spinule at the base on the inside. Ves- 

 tiges of the anal legs small, narrow, not ])roniinent. On hinder edge 

 of mesoscutum is a transverse row of ten large deep pits sejiarated by 

 double tubercles, each tubercle being flattened above, with an i-m- 

 ])ressed median line giving a double ai)])earance to the tl]i, which is 

 dull, not polished as arc the sides. Length, 18 mm. 



llahitsi. — Profes.sor French, speaking of the habits of C. nivsteliua, 

 says that "three nearly grown cateriiillars were found at Carbondale, 

 111., on a rosebush September IS. By October 1 they had pupated, and the moths a|)|)eared on 

 May 20, 22, and 31 following. No efforts were made to rear a second brood, but from the time 

 the larva' were found in the fall it is to be presumed that there arc two broods in a season." 



The eggs here described were laid by a species of Schi/.ura, and sent by Jliss l-^mily L. Morton, 

 who is quite sure that it was 8chi::ura Icptinoidc.s. They were laid June 3, at New Windsor. N. Y. ; 

 they hatched June 12, all the others being out of the shell by noon of the next day. I did not 

 carry it beyond the first stage, but have little doubt but that 

 Miss Morton's identification of the moth was correct. 



liiley has found the eggs in August; the larva' in July, 

 August, and September; the moths in August. 



The moth was collei-ted at Cambridge, Mass., by I >r. Harris, 

 June 1.5. 1 have found the larva on the hornbeam at Bruns- 

 wick, INIe.; it was uniformly ])ale russet-brown, the color of a 

 vsere dead leaf. It began to pupate September 12. 



Food planU. — Carya (Thaxter); beech and hornbeam in 

 Maine; in Phode Island, the chestnut and tui)elo ( Packard); 

 rose (Frencli); hickory, walnut, butternut (Miss Jlorton); wal- 

 nut (Pilate); Georgia (Leconte's figure, which I take to repre- 

 sent the larva of this S])ecies, fed on the oak. PI. XXVI, figs. 

 4c, 4i'/, 4e). Abbot (MS.) figures the larva giving as its food 

 jilant HclicDiilnis nnfjiisti/olins. In New York, hickory and hop 

 liornbeam (Dyar). Dr. Dyar writes that Icptinoides is generally a hickory fticder. 



Gcodrnphkul distribution. — A member of the Ap])alachian and Austroripariau subinovincial 

 fauna'; it ranges from Elaine to Georgia, and westward to Illinois. 



Orono, Me. (Mrs. Fernald); Kittcry, Me. (Thaxter); Prnnswick, Me. (Packard); Massachusetts 

 (Harris); $ , Buffalo, N. Y. (P. Fisher, U. S. Nat. Mus.); Newburg, N. Y. (Miss Morton); Platts- 

 ^nirg, N. Y. (Iludson); Carbondale , 111. (French): Ohio (Pilate); Savannah, Ga. (Leconte, Abbot); 

 Wisconsin and District of Columbia (IJ. S. Nat. :Mus.); Maine, Massaehu.sett.s, llhode Island, New 

 York, Pennsylvania, Ohio; Champaign and Carbondale. 111. (French). 



(' Srhi:?irn It'/itiiioiitctt. Ena 



