202 



jMemoirs of the national academy of sciences. 



5P 



"Fig. 77. — Pupa of Si-hizura leptrnoi- 

 de^". Dorsal viuw of head. c. ^, witli 

 the co(:oon cutter; a)>(. aDteuna : pfh. 

 prothoras; «?;, 8i))ra<;le. 



It (litters from any other species known to me in lucking any green color on the thoracic or 

 other segments ot the body. 



The larva of *:>'. mnxteJina described by Professor French is said to be 0-SO inch in length, and 

 "the sides of joints .'5 and 4 are bright green." otherwise it appears to agree with our specimens of 

 h'ptiii<>iile.s. Probably the specimens described by French, which were under size, were in next to 

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

 three moths from his larvte. (Dr. Dyar writes me that French's larva is evidently *S'. unicornis.) 



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

 (French.) It is oval, made of silk, uniforndy thin, though dense and parchment-like, and my 

 Maine specimen spun between leaves. 



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



beino- pointed and ending in two stout conical spines, or cocoon-cutters, arising from the 



epicranium between the eyes. Gremaster ending in two stout sjiines, 

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

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

 tiges of the anal legs small, narrow, not prominent. On hinder edge 

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

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

 pressed median line giving a double appearance to the ti]), which is 

 dull, not polished as are the sides. Ijcngth, 18 mm. 



Habits. — Profes.sor French, speaking of the habits of 6'. miistelina, 

 says that ''three nearly grown caterpillars were found at Carbondale, 

 111., on a rosebush September 18. By October 1 tiiey had pui)ated, and the moths a])peared on 

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

 the larv?e were found in the fall it is to be presumed that there are two broods in a season." 



The eggs here described w^ere laid by a species of Schizura, and sent by Miss Emilj' L. Morton, 

 who is (juite sure that it was Schizura Icpiinoides. 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. 



Ililey has found the eggs in August; the larva' in .Tuly, 

 August, and September; the moths in August. 



The moth was collected at Cambridge, Mass., by Dr. Harris, 

 June 15. I have found the larva on the hornbeam at Bruns- 

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

 sere dead leaf. It began to pupate September 12. 



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

 Maine; in Rhode Island, the chestnut and tupelo (Packard); 

 rose (French); hickory, walnut, butternut (Miss ]\Iorton); Aval- 

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

 sent the larva of this species, fed on the oak. PI, XXYI, figs. 

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

 plant Bclianthus ancjristifoUus. In New York, hickory and hop 

 hornbeam (Dyar). Dr. Dyar writes that leptiiioides is generally a hickory feeder. 



Geographical distribution.— A member of the Appalachian and Austroriparian snbprovincial 

 fauna-; it ranges from ^'iaine to Georgia, and westward to Illinois. 



Oiono, Me. (Mrs. Fernald); Kittery, Me. (Thaxter); P.runswick, Me. (Packard); Massachusetts 

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

 burg, N. Y. (Hudson); Carbondale , 111. (French); Ohio (Pilate); -Savannah, Ga. (Leconte, Abbot); 

 Wisconsin and District of Columbia (U. S. Nat. Mus.); Maine, Massachusetts, Rhode Island, New 

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



f Si'Jiiziira Icj'tiitaiilcs. Kna 



