NORTH AMERICAN LEPIDOPTERA. 99 



pelasgus Cram., Lep. Ex. iii, 93. pi. 248, fig. B, Sphinx; Hiib., Verz. 131, 

 Cephanodes ; Harr., Sill. Journ. 36, 308, Sesia ; Wlk., C. M. B. Lep. Het. viii, 

 82, pr. syn. ; Harr., Inj. lus. Flint, ed. 328, fig. 156, Sesin ; Morris, 1. c. in 

 note, pr. syu. 



cimbiciformis Steph., 111. Br. Ent. Haust. i, 13.5, Sesin ; Wood, Ind. Ent. pi. 

 53, fig. 29, Sesia; Wlk., C. B. M. Lep. Het. viii, 82. pr. syn. 



Var. Uniformls G. & E., Tr. Am. Ent. Soc. ii, 181, Sesia; id. List. Lep. 1868, 

 Hsemorrhagia ; Lint., 23d Rep. N. Y. State Cat. N. H. 172, Sesia; Ent. Cont. 

 i, iO := ruficaudis ; Grt., Buflf. Bull, i, 8, Hxmorrharjia ; id. ii, 224; Strk., 

 Lep. Rhop. et Het. 187(5, 109, Macroglossa = rnficaiulis ; Grt., New List 1882, 

 var. thyshe; Edw., Papilio, iii. 125; Holland, Can. Ent. xviii, 102, Hemaris ; 

 Grt., Hawk Moths 27, an dim. form. pr. 



Var. Floridensis G. it R. Ann. Lye. N. H. viii, 439, pi. 16, fig. 20, Hsemorrhagia ; 

 Grt., Buflr. Bull, i, 8, Hxmorrhagia ; Butl., Tr. Zool. Soc. Lond. ix, 522. He- 

 maris; Hulst, Bull. Bkln. Ent. Soc. ii, 40, pr. syn. ; Grt., New List an var. pr. 



The upper side of the head, palpi and thorax is of a bright olive green color. 

 The sides of the palpi are blackish, and they are cream colored beneath ; the 

 breast and legs, except the hind tarsi and lower ends of the tihise which are 

 brown, are also cream colored ; the upper side of the abdomen has the first two 

 segments yellowish-brown, the next two deep reddish-brown or blackish, and 

 the terminal segments yellowish-brown with reddish-brown in the middle and 

 black on the sides. The primaries have a narrow costal border, a wide outer 

 border dentate inwardly on the inter.spaces and a basal patch extending along 

 the hinder margin of a dark reddish-bi'own color and overlaid on the basal por- 

 tion with olive-green hairs. The cell is divided through the middle by a longi- 

 tudinal line of brown scales. Secondaries bordered all around, narrowly on costa, 

 more widely on outer margin, with dark reddish-brown, while the hinder mar- 

 gin and base of the wing have a very wide border of rust-red. All these borders 

 are lighter on the under side of the wings. Expands 2 inches ; 50 mm. 



Hah. — Labrador, Canada ; Southward to Florida ; Westward to 

 the Mississippi. 



This is the description of the type form. 



In Trans. Am. Ent. Soc. ii, 182, Grote & Robinson says: "As 

 Sesia thysbe var. uiiiformis, we would record the /Sesia ruficaudis of 

 Mr. Walker. This is not Kirby's species to judge from the descrij)- 

 tion of that author. This is a form of S. thysbe, occurring in both 

 sexes, in which the external border of the primaries is not dentate 

 inwardly on the interspaces. We formerly regarded this as the usual 

 female form of S. thysbe, but with more material we correct this 

 opinion. In S. thysbe, both S and 9 have the external marginal 

 border of the primaries dentate on the interspaces within." 



Later they separate imiformis as a good species. Mr. Lintner 

 gives a very good description of the hirva of this form in Proc. Ent. 



