278 



psrciiE. 



[ April — June iS 



jilum, Pntiiii^ viyginiana^ Plataitus, Gledit- 

 scliia [Rilej]; lictida leiita [Young (Can. 

 entotn., Oct. iSSo, v. 12, p. 212)]: Htiiiia- 

 mclis virginica [Kyle {^op. cit., p. 213)]; 

 Castanea vcsca, Fagiis [Wailly (Joiirn. Soc. 

 arts, 31 Maich 1SS2, v. 30, p. 52S)] ; Tilla 

 enrofaea, Cra/tiegns cocciiiett, C. tomeiitosu, 

 C. crnx-galli, Amelanc/iiei- cauiii/e/isis, Ribes 

 cyiiosba/i, ^iterciis alba, ^. macrocar/>a, ^. 

 1-itbia^ Coiyliis americaiia, C. rostra/a, F'agiis 

 fcringiiica, Carpinus americaiia, Osirya vir- 

 ginica, Caiya toiiientosa, C. amara, C. alba, 

 Betiila tciita, B. excclsa, B. alba, B. pafyra- 

 cca, Aliiiis iiicaiia, A. serrula/a, Salix alba, 

 S. IiHinuli^, Popitlus. graiididentata, P. tre- 

 mii/oides [Brodie (Papilio, April 1SS2, v. 2, 

 p. 58-59)]. Cliestnut, as a food-plant, is only 

 mentioned by Wailly, who reared tlie larvae 

 in England, but they are often found, in east- 

 ern Massachusetts, on Caslaiiea vesca. 



Attaciis lima Linn. (Syst. nat. , 175S. ed. 10, 

 p. 210). Hanis (Rept. ins. injur, veg., 1S41, 

 p. 277-27S) describes larva, cocoon, and ima- 

 go, and gives Jiiglans and Carya as food- 

 plants; he repeats (Treatise on ins. injur, 

 veg., 1S62, p. 3S2-3S4) these descriptions, add- 

 ing a figure of the cocoon and imago; later 

 (Entom. corresp., 1869, p. 293-294, pi. 4, fig. 

 14) he describes and figures the larva, speci- 

 fying the food-plants as Carya forcina and 

 Jnglaiis ciiierea. Morris (Synop. lepid. \. 

 A., 1S62, p. 225-226) describes the larva 

 and imago. Trouvelot (Amer. nat.. Mar. 

 1S67, V. I. p. 31) gives a note on the cocoon, 

 and adds ^iierciis and Pla/iiniis to the food- 

 plants. Minot (Can. entom., Nov. 1S69. v. 2, 

 p. 27) describes the egg. Riley (4th ann. 

 rept. state entom. Mo., 1S72, p. 123-125) de- 

 scribes the egg and larva, which he states to 

 have five stages, and figures larva, cocoon, 

 and imago; among food-plants he mentions 

 Liqiiidambar, Fagiis, Betiila, Salix, and 

 plum. Lintner (Entom. contrib.. no. 3. 1S74, 

 p. 126-128) describes the larva, which molts 

 four times. Gentry (Can. entom.. May 1874, 

 v. 6, p. 86) describes the normal form of the 

 larva, and a variety of it. Bunker (Can. 



entom.. Ajiril 1S75, v. 7, p. 63) mentions how 

 to distinguish the cocoon of this species from 

 that oi A. polyplieiniis. Rogers (Can. entom. 

 1S75, v. 7: Aug. p. 141-143; Oct.. p. 199-200) 

 describes egg, larva, cocoon, and imago. 

 Thaxter (Psyche, Sept. [10 Nov.] 1S76, v. i. 

 p. 194) adds Os/rya X'irginica and Castanea 

 to the food-plants of the larva. Saunders 

 (Can. entom., Feb. 1S77, v. 9, p. 32-33) figures 

 and describes the imago. Grote (Can. en- 

 tom., Sept. 1S7S, V. 10, p. 176J states that this 

 species is double-brooded in the southern 

 United States. 



Drcpaiia sp. A pupa taken 5 July 1SS3. at 

 Cambridge, Mass., upon Beliila alba, upon 

 which the larva had evidently fed, gave as 

 imago. 16 July 1883, a species of Drcpaiia. 



Platypteryx bilincata Packard (Proc. En- 

 tom. soc. Phil., Nov. 1S64, v. 3, p. 359). Pack- 

 ard (Ac.) writes "Dr. Harris has reared this 

 rom the larva, which pupated July 25 ; imago 

 Aug. 15." Harris (Entom. corresp., 1S69, p. 

 142) gives a crude figure of the larva of some 

 American species of Platypteryx?, and Pack- 

 ard (Guide study ins., 1S69, p. 293) repeats 

 this figure as that of a species of Dryopteris; 

 no food-plant is mentioned by eitlier author. 

 The European species, Platypteryx lacerliila, 

 feeds on birch. The larva of P. biliiieata is 

 found upon Betiila alba, in eastern Massa- 

 chusetts, about the first of July and again 

 early in September ; hibernation takes place 

 as pupa in the September brood. Dr. G : 

 Dimmock will later describe the egg, larva 

 and pupa of this insect in detail, but the fol- 

 lowing hotes will sufiice for the recognition 

 of the Irva and pupa. The full-jrown larva 

 is about 12 mm. long, tapering from the an- 

 terior to the posterior end, which latter term- 

 inates in a single point, turned upward, in 

 place of the anal legs. The dorsal surface of 

 each segment bears four tubercles, each sup- 

 porting a single short hair. The arrange- 

 ment of these tubercles is peculiar : segment 

 I has small tubercles arranged thus .. ..; 

 segments 2 and 3 each have large tubercles 

 arranged •..• (the head in each ca.^e sup- 



