OF NORTH AMERICA. 13 



black, terminally enlarged, neatly and closely sub-annulate with white 

 along their basal portion. Thorax black ; tegulse sulphur yellow, 

 fringed with black hairs; abdomen, black, with two approximate, dor- 

 sal, sulphur yellow dots at the base; legs, mostly closely scaled, black- 

 ish; anterior and middle tibiae, fulvous; the middle femora are also 

 somewhat touched with fulvous inwardly. 



" Wings, black, somewhat lustrous. Anterior wings, with the costa 

 swollen, and slightly convex, centrally owing to the enlargement of 

 interspace above sub-costal nervure. Veins, marked by lustrous scales. 

 At base, a large, sulphur yellow patch, obliquely margined outwardly, 

 and straightly inferiorly, neatly divided by the black median nervure 

 into dissimilar portions. A rounded spot on the disc, and a trans- 

 verse, sulphur yellow, narrow, elongate-oval spot beyond the disc, 

 neatly divided four times by the black nervules. Secondaries, with a 

 large, whitish spot at base, the black median nervure separating a 

 small portion inferiorly. Beyond the discal cell, an elongate, narrow, 

 whitish spot, much as on primaries (but reversed, tapering inferiorly), 

 and divided three times by the black nervules. Fringes on both wings, 

 black and lustrous. On both wings beneath, the ornamentation of 

 the upper wings is reproduced; the spots are very pale yellow; on the 

 secondaries the extra discal spot has lost its inferior dot, is broader and 

 prolonged above sub-costal nervure towards the base of the wing." 



Grote (loc. cit.) 



Expanse of wings, $, , i.oo inch. Lenglh of body, $ 0.47 inch. 



Habitat. — California, (Coll. Edwards, Behr, and Stretch.) Colo- 

 rado Territory, (Coll. Edwards). 



Mr. Grote says (loc. cit.): "Compared with three 6 specimens 

 of A. Maccullochii, agreeing with Kirby's figure, contained in the Brit- 

 ish Museum Collection, and so determined in the B. M. Lists, the 

 present species differs by the sub-terminal band, which is divided into 

 spots by the black nervules, being much narrower on either wing, and 

 coming to a point superiorly on the primaries. The discal spot of the 

 primaries is smaller in A. Maccullochii than in A. Lorquinii, and on 

 the under surface the basal patch is larger. On the upper surface of 

 the secondaries, the sub-terminal band is composed of five spots in 

 Kirby's species, while, in A. Lorquinii, where it tapers inferiorly, it 

 contains but four. On the under surface, the white basal patch in 

 Kirby's species is more extended, and the sub-terminal band receives 

 one or two accessory spots, inferiorly. Finally, the maculations of the 

 secondaries are white in A. Maccullochii, and pale yellow in A. 

 Lorquinii. " 



