1886.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 429 

 The only North American species is — / 



A. lunaLinu., Syst. Nat., ed. x, 496 No. 5 {Bonibyx) ; ed. xii, 5i, 810, 1767 (Attacus) ; ed. 

 siii (Gmel.), 2404, No. 5 (Aitacus) ; Mus.'L.lJ./SlO (Attacus); Clk., Icon., t. 

 52, f. 1 (Phalwna) ; Fabr., Ent. Syst., lii, 1, p. 414, 1770 (Bomhijx); Maut., Ins., 

 ii, 109, 17 (Bombyx) ; Sp. Ins., ii, 170, 15 (Bombyx) ; Oliv., Enc. M^th., 5, 29, 

 20, 1825 (Bombyx) ; Cram., Pap. Ex., 1, t. 2, f. A, et 3, t. 31, f. A, B (Attacus) ; 

 Pal. Beanv. Ins. Afr. et Am. Lep., pi. 22, f. 3 (Phalwna) ; A. & S. Ins. Ga., p. 

 95, pi. 4d, 1797 (Phalwna) ; Hb., Saml., i, f. 153 (Echidna caudata) ; II, f. 382, 

 383, 384, 1806 (Tropea); Verz., p. 152, 1816 (Tropea) ; Leach., Zool. Misc., 2, 

 1815 (Actias) ; Dru. 111., 1, pi. 24, i\ 1, 1770 ; Westw., ed., p. 4.^, 1837 (Actias) ; 

 Harris, Cat. Ins. Mass., 1835, 72 (Attacus) ; Rept. Ins. Mass., 1841, p. 277 

 (Attacus); luj. Ins., iii ed., 382, f. 179, 180; Wlk., vi, 1260, 1855 (Tropea); 

 Fitch, 3d Rep., 134, 1856 (Actias) ; Morr., Syu., 1862, p. 225 (Attacus) ; Pack, 

 Pr. E. S. Ph., iii, 1864, 379 (Tropea) ; Minot, Can. Ent., ii, 27; Chamb., id. 

 43 ; Riley, 4th Rep., 1878, 123, f. 47, 48, 49. 

 var. DiCTYNNA Wlk., C. B. M., vi, 1264 (Tropea). 



An easily distinguished and rather abundant species. The fore wings 

 are of a variable shade of green, costal margin of primaries and a broad 

 band on collar purple, fringes yellow and purple, the two colors varia- 

 ble in extent. Body white, antennae yellow. A small vitreous spot 

 at the end of the discal cell in each wing, margined with white, purple, 

 green, and black. 



Expands 3-5J inches. Rab. Eastern and Central United States. 



This species has also been figured innumerable times and is suffi- 

 ciently well known to make description here unnecessary. The variety 

 dictynna, according to Mr. Walker, differs as follows : " This species 

 much resembles T. luna, but may be distinguished by the baud on the 

 wings, by the not empurpled exterior border, by the fore wings, which 

 have a less oblique and more straight exterior border, and by the hind 

 wings, which have shorter tails." , 



There are two annual broods of this insect in most sections of the 

 country, and the midsummer brood is usually smaller, more yellowish, 

 and has the wings more densely scaled. 



TELEA Hb. 



This genus is the close ally of Aiitherea and of Saturnia, as the term 

 is used in Standinger. I am not at all certain that Antherea is not 

 strictly synonymous with Telea, and am in doubt whether some of the 

 European species of Saturnia are not referable here. The straightening 

 out the perplexing generic synonymy in this group must be the work 

 of the monographer of the whole family, and I simply point out the 

 structures peculiar to our American species. 



The primaries have ten veins ; vein 7 and 8 from a long stalk out of 

 the subcostal, and vein 9 also from the subcostal, very close to the in- 

 ception of vein 8. There is thus an essential difference between this 

 genus and Actias, in which vein 9 is from the same stalk with 7 and 8. 

 The dorsal vein is furcate, rather an unusual feature in this group. 

 The secondaries are, as usual, 8-veined, vein 7 very strongly curved. 



