188 THIRTIETH REPORT OJST THE STATE MUSEUM. [76] 



XIII. NOTES ON NOTODONTA DICTJEA LIM. 



? Phaloena tremula CLERCK. Icon. pi. ix, f . 13. 1759. 



? Phalcena Borribyx tremula LINN. Faun. Suec., Ed. ii, p. 298, no. 1121. 1761. 

 ? &quot; &quot; LINN. Syst. Nat., Ed. xii, p. 826, no. 58. 1767. 



dictaa LINN. Syst. Nat., Ed. xii, p. 826, no. 60. 1767. 

 Leiocampa dictcea STEPHENS. 111. Brit. Ent., Haust. ii, p. 25. 1829. 

 Pheosia rimosa PACKARD ; in Proc. Ent. Soc. Phil., iii, p. 358. 1864. 

 Jfiotodonta, Calif ornica STRETCH. ZygamidaB-Bombycidse N. A., i., pp. 116, 240, 



pi. 4, f. 5 ; pi. 10, f . 9, 1872-73. 

 Notodonta tremula STAUD. Cat. Lep. Eur. Faun., Ed. ii, p. 72, no. 975. 1871. 



p. 72. 1877. 



A larva of the above species was taken at Bath-on-the- 

 Hudson, Sept. 9, 1869, on willow. It molted during the night, 

 and on the following day it measured, when at rest, .95 of an 

 inch. The following were its features : Head light yellow- 

 green, subquadrangular, with an impressed median line ; 

 mandibles yellow, tipped with black. Body white dorsally, 

 with a bright yellow stigmatal stripe bordered above with 

 green. Caudal horn conical, white, tipped with glossy black 

 and with a black stripe laterally. Caudal shield granulated, 

 broadly elliptical in outline its largest diameter transverse 

 to the body. Stigmata broadly oval, velvety -black on a white 

 ground. Legs ferruginous, with a black spot above them : 

 prolegs with a glossy black spot laterally, and a dull black 

 larger one above them, extending upward to the stigmatal line. 



The larva was of remarkable transparency, exceeding that 

 of any other which had come under my observation. The 

 lateral and ventral regions had almost the transparency of 

 glass. 



It matured on the 19th, when it measured 1.1 inch long and 

 .17 inch broad. It was not suspected at this time of having 

 reached maturity, but was thought to be a young Sphinx, 

 with probably one or two additional moltings to undergo 

 before its pupation. The diminished activity shown by it, 

 and its refusal of food, was ascribed to its change to poplar 

 soon after its capture. On the 21st, at the suggestion of a 

 friend that it had possibly matured, it was placed on some 



