300 FIFTH BEPOBT OF THE ENTOMOLOGICAL COMMISSION. 
Full-fed larva . — White, covered with white hairs in short spreading tufts, a row of 
eight black tufts on the fourth segment ; two long, black, pencil-like tufts on the 
fourth and tenth segments; four white pencils on the second and third, and two on 
the eleventh and twelfth tegmenta. Head and prolegs black, the surface of the 
body with minute black tubercles, and a transverse black line between each segment. 
(Harris.) 
ilu moth. — Very light ocher yellow; the long narrow-pointed fore wings are thickly 
sprinkled with little brown dots, and have two oblique brownish streaks passing 
backwards from the front edge, with three rows of white semi-transparent spots 
parallel to the outer hind margin ; hind wings very thin, semi-transparent, and with- 
out spots. The wings expand about 2 inches. (Harris.) 
47. The luna moth. 
Actias luna (Linmeus). 
Order Lepidoptera ; family BoMBYCiDiE. 
Devouring the leaves in August, a large thick-bodied caterpillar, about 3 inches 
long, apple green, each segment with six small bright rose-red elevated dots, and low 
down along each side a pale yellow line running lengthwise immediately above the 
lower row of dots, from which line at each of the sutures a pale yellow line extends 
upward upon the sides. Spinning a large oval cocoon, which is found among the 
fallen leaves; the moth, one of our largest insects, appearing late in May and during 
June; pale green, with eye-like spots in the center of each wing, the hinder pair pro- 
longed into two long, broad "tails." 
48. The American silk worm. 
Telea polyphemw (Linn.). 
Mr. D. L. Harris, of Cuba, III., writes me that he has found this cater- 
pillar more abundantly upon the hickory thau upon the oak. Mrs. 
Diminock has contributed the following bibliographical account to 
Psyche, iv, 278 : 
Attacw {una Linn. (Syst. Nat., 1758, ed. 10, p. 210). Harris (Rept. Ins., Injur. Veg. 
1841, p. 277-278) describes larva, cocoon, and imago, and gives Juglans and Carya as 
food-plants; he repeats (Treatise on Ins. Injur. Veg., 1862, p. 382-384) these descrip- 
tions, adding a figure of the cocoon and imago ; later (Entom. Corresp., 1869, p. 293- 
234, pi. 4, fig. 14) he describes and figures the larva, specifying the food-plants as 
Carya porcina and Juglans cinerea. Morris (Synop. Lepid. N. A., 1862, p. 225-22(5) de- 
scribes the larva and imago. Trouvelot (Amer. Nat., Mar. 1867, v. 1, p. 31) gives a 
note on the cocoon, and adds Quercus aud Platanus to the food-plants. Minot (Can. 
Entom., Nov. 1869, v. 2, p. 27) describes the egg. Riley (4th Ann. Rept. State Entom. 
Mo., 1872, p. 123-125) describes the egg aud larva, which he states to have five starts, 
aud figures larva, cocoon, and imago; among food-plants he mentious Liquidambar, 
Fagus, Betula, Salix, and plum. Lintner (Entom. Contrib., No. 3, 1874, p. 126-128) 
describes the larva, which molts four times. Gentry (Can. Entom., May 1874, v. **,, p. 
86) describes the normal form of the larva, and a variety of it. Bunker (Can. Entom., 
April 1875, v. 7, p. 63) mentions how to distinguish the cocoon of this species from 
that of A. Polyphemus. Rogers (Can. Entom. 1875, v. 7; Aug. p. 141-143; Oct., p. 
199-200) describes egg, larva, cocoon, and imago. Thaxter (Psyche, Sept. [10 Nov.] 
1876, v. 1, p. 194) adds Ostrya virginica and Castanea to the food-plants of the larva. 
