NORTH AMERICAN LEPIDOPTERA. 191 



by him in the Adirondacks. It resembles gordius at first sight in 

 color and maculation, but lacks the dark dorsum of thorax, and 

 there are other differences as well. 



Prof. Fernald quotes a letter from Mr. Thaxter as follows : " I 

 found two small Sphinx larvae ready for their last molt, last summer 

 [188")] on the ' bake apple' marshes in NeAvfoundland, as the high, 

 open peat bogs there are called. One was on the bake apple (Rabus 

 chamcemorus), the other creeping among the low Ericaceous plants 

 and both fed in confinement on low bush blueberry. They were 

 much like S. drupij'erarimi and S. gordius, but differed noticeably 

 from either. Unfortunately I lost them before taking a description. 

 Near by on the marsh I found a battered dead female iS. canadensis, 

 and have little doubt that this larva was of the same species." 



Nothing else has been published on the early stages. 



S. Iiigens Wlk.. C. B. M. Lep. Het. viii, 219, Sphinx; Grt., Buff. Bull, i, 26, 

 A(irius ; id. ii, 228, Agrius ; Bd., Sp. Gen. Het. i, 87, Sphinx ; Snow,® Observer 

 of Nature, iii. No. 1; Strk.,* Lep. Rhop. et Het. 115, PL xiii, fig. 12, 9 ; id. 

 p. 142, Sphinx; Butl., Tr. Zool. Soc. Lond. ix, 618, Sphinx. 



ereraitoides Strk., Lep. Rhop. et Het. 93, Sphinx : id. 115, pr. syn. ; Grt. Buff. 

 Bull, ii, 150, pr. syn.?; Butl., Tr. Zool. Soc. Lond. ix. 621, Lintneria. 



merops Bd., Lep. Guat. 73, Sphinx ; Sp. Gen. Het. i, 87, pr. syn. 



andromedea Bd., Lep. Guat. 1870, 74, Sphinx ; Butl., Tr. Zool. Soc. Loud. ix. 

 618, pr. syn. ; Maassen, Stett. Ent. Zeit. 1880, v. 41, p. 65, an sp. dist. 



sordida J Clem., Journ. Ac. N. Sci. Phil. iv. 169, Sphinx; Morris, Synopsis 

 Lep. 1862, 194, Sphinx. 



separatus Neuni., Ent. Am. i. 92, Sphinx. 



Head, thorax and abdomen of mouse gray color, with darker shades on pro- 

 thorax and thorax, shading laterally into whitish gray. Lateral lines of pro- 

 thorax and patagise j)rominently marked in black, inner marginal line hardly 

 distinguishable. Gray dorsal l)and on upjier side of abdomen with a black dor.sal 

 central line ornamented with black segmentary bands. Primaries of mouse gray 

 color, with markings as in Sphinx Itujens Wlk., in brownish black, but the apical 

 diagonal dashes, the undulating transverse line which runs partly along outer 

 margin and in au irregular bend turns and rests within the central part of inner 

 margin, as well as the two horizontal dashes between the median nervules, much 

 more prominent and pronounced than in lugens. The space between interior and 

 anterior transverse line and along costa, above discal spots of brownish hue, leav- 

 ing in discal cell and above centre of inner margin interspaces of grayish white. 

 A round basal black blotch. Secondaries whitish gray, with large marginal and 

 prominent medial bands of brownish black, the color in marginal band fading 

 into gray towards anal angle. A black basal blotch. Fringes on primaries and 

 secondaries whitish gray, ornamented with dark brown at intersection of veins; 

 less marked in secondaries. Below, legs and abdomen mouse gray. Primaries 



