1886.1 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 428 



in gray, aud bordered outwardly by a sharp triangle of black ; there 

 are live of these extra spots, which diminish in size and clearness as 

 they apx)roach the inner margin. The dark gray ground is outwardly 

 scalloped with a narrow black line, somewhat as in cecropia ; the bor- 

 ders to i^rimaries are gray shaded with whitish inwardly, especially 

 toward apical area ; at apex a zigzag white line connects with the first 

 blue crescent, and between this line and the outer margin is a dull red 

 spot. Beyond the white band on secondaries the color is blackish, 

 with dark gray borders and a scalloped black line, enclosing inwardly 

 a row of black spots, two between each vein. The underside is a re- 

 production of the upper side with the colors more subdued — no light 

 costal band to secondaries." 



Eab. — Southern Arizona, Mexico. Expands 3-4 inches S , 5 inches 2 . 



In wing shape the 3 of this species closely resembles promethea^ 

 while the $ has the wing form of cecropia. The primaries have but 9 

 veins, very closely resembling in that respect the typical Affaciis. The 

 figure will m(n^e clearly show the course of the veins. The genitalia 

 are somewhat peculiar and also more nearly resemble splenMdus than 

 promethea, to which grou p this species undoubtedly belongs. The supra- 

 anal plate has a distinct suture through the center, and the forks at 

 till are short and not divaricate. My figure is probably not accurate, 

 as I could not dissect out the part from the only S specimen I had at 

 band. This species does not appear to be common. 



A. promethea Dm., ii, pi. xi, f. 1. 2 ^ ; pi. xii, f. 1, 2 J (Attacus) 177.3; Cram. Pap^ 

 Ex., 1, 118, pi. 75 f. A. B. 9 ; pi. 76, f. A. B. <? (Attacus), Fabr. Syst. Ent.* 

 558-7 {Bomhyx); Sp. Ins. ii, 168, 8 {Bomhyx); Maut. lus., ii, 108, 9 {Bomhyx) ; 

 Ent. Syst., iii, 1, 411, 12 {Bomhyx); 011%;.., Euc. M^tli., v, 27, 12 {Bonibyx); 

 Gmel. Ed. Linn. S. N., 2403, No. 464 (Attacus); Beauv., Ins. Afr. et Am. Lep., 

 pi. 21 (Attacus) ; A. & S. Ins. Ga. i, t. 46, 1797 (Phalaena); Westw. Ed. Dru., 

 ii, 20; pi. 11, f. 1, 2; pi. 12, f. 1, 2, 1837 (Saiurnia); Hb. Verz., 1816, 1-56, 

 1631 (Samia) ; Geyer Saml., j)!. ii, f. 3, 4, 1832 (Samia) ; Harris, Cat. Ins., Mass., 

 1835, p. 72 (Attacus) ; Rept. Ins. Mass., 1841, p. 281 : Inj. Ins. (First Ed.), 390 f. 

 186 ^,187 9, 1862 (Attacus) ; Duncan, Nat. Lib., 32, p. 134, pi. 12, 1852 (Hya- 

 lophora); Wlk. C. B. M. v., 1223,18.55 (Samia); Fitch 3d Rep., p. 59,1856 

 (Attacus) ; Morr. Syn. 224 (1862) (Attacus); Pack. Pr. E. S. Ph., iii, 1864, 379 

 (Callosamia) ; Minton, Can. Ent., ii, 100 (list of food plants) ; Riley 4th Mo. 

 Rept., 1872, 121, tr. 43-46 (life hist.); Packard, Guide, 1878 (6th ed. ), 298 (Cal- 

 losamia). 



The above bibliography, voluminous as it is, is far from complete, for 

 in almost every American publication in which Lepidoptera are men- 

 tioned at all this species is described. Being so well known no de- 

 tailed description of any of its stages will be attempted, and reference 

 is made to the works of Harris and Kiley for figures and detailed descrip- 

 tions. 



The primaries are 11-veined, vein 8 forking just before the apex. 

 The figures will show the agreements in the sexes. The supra-anal 

 plate of the ^ is deeply furcate, the points widely divaricate ; the side 



