84 BULLETIN 190, UNITED STATES NATIONAL MUSEUM 



Distribution. — Atlantic Coast States, Maine to Pennsylvania; Midwest- 

 ern States. Canada, Ontario to Alberta. 



Type. — Female. In collection of F. Tepper, Michigan Agricultural 

 College. 



Remarks. — Hy. Edwards's very brief original descriptions of albicornis 

 and proxima on the same page (Papilio, vol. 1, p. 201, 1881) are insuf- 

 ficient to separate clearly two species that superficially resemble each other 

 so closely. With imperfect specimens it is diflficult to avoid confusion. 

 For precise determination the genitalia are dependable. 



C. proxima in general may be stated to inhabit the eastern half of the 

 North American Continent, whereas albicornis is indigenous to the western 

 half. The female type came from the White Mountains, N. H. (Mor- 

 rison), from which locality I also have examples. Locally it is a common 

 species in the vicinity of New York City and on Long Island, most easily 

 obtained by rearing from cuttings of canes, branches, and exposed roots of 

 low-growing willows in moist or swampy situations late in spring and 

 early in summer. Numerous records from New York and New Jersey 

 show a period of emergence from late in May to July ; for the Catskill 

 Mountains, July 3 and 20, 1913 (Pearsal) ; White Mountains, N. H., July 

 (Mrs. Slosson) ; Willislon, N. Dak., June 13, 1923 (H. Notman) ; 

 Aweme, Manitoba, June 28, 1921 (N. Criddle). The species is annual, 

 wintering as larvae and pupating within the burrow during spring. 



CONOPIA BOLTER! (Hy. Edwards) 



Aegeria bolteri Hy. Edwards, Papilio, vol. 3, p. 155, 1883; Ent. Amer., vol. 3, 

 p. 224, 1888.— BEUTENMiJLLER, Bull. Amer. Mus. Nat. Hist., vol. 4, p. 172, 1892. 



Sesia bolteri Beutenmijller, Mem. Amer. Mus. Nat. Hist., vol. 1, pt, 6, p. 290, 

 pi. 32, fig. 32, 1901. 



Synanthedon bolteri McDunnough, Check list of the Lepidoptera of Canada and 

 the United States of America, pt. 2, No. 8716, 1939. 



Male. — Antennae black, apical third yellowish white above ; pectinations 

 short and fine. Labial palpi above black, beneath roughly scaled with 

 orange. Head, collar, and thorax lustrous black, orbits white. Abdomen 

 steel or coppery black, segments 4 and 5 encircled with deep orange or 

 scarlet, the band on segment 5 extending over segment 6 beneath ; anal tuft 

 wedge-shaped, edged with white at the sides and yellow in the middle be- 

 neath. Legs bluish black, tibiae rusty yellow at the sides and beneath, 

 white-tufted at the spurs. Tarsi rusty yellow and black, a pale narrow 

 band at first joint; northward within the range of the species the leg in- 

 creasingly brighter with a corresponding reduction in black. Forewing 

 transparent ; veins, discal mark, and broad costal margins lustrous black, 

 sparsely intermixed with orange scales, denser at posterior wing base; 

 distal area very broadly coppery red or deep orange between the veins ; 

 cilia brownish. Hindwing transparent, costa dull yellow. Wings paler 

 beneath than above. 



