202 B. NKUMOEGEN AND H. G. DYAR. 



Transverse bands normally present. 



Discal dot surrounded by a light cinereous space. 



Scarcely any black shading on primai-ies ipoiiiceiip. 



Two long black dashes var. leliCer. 



Whole middle of wing black to outer margin var. ciiiere4»li'Uii!i«. 



Discal dot on the ground color. 



Primaries pale green at extreme base uiiicui'iiii!*. 



Without green tints. 



Discal dot lunate: size small. 



Transverse lines distinct, black, coarsely undulate apicalis. 



Lines faint, reddish, finely undulate iiitida. 



Discal dot round; size large leptiiioiiles. 



S. COiiciiiiia Abbott and Smith. 



1797. — Abbott and Sniith, Lep. Ins. Ga. vol. ii, pi. 85. Phalsena. 



semirufescens Walker. 

 1865.— Walker, Cat. Brit. Mus. Pt. xxxii, p. 4:24. Edema. 



semirufescens Walker. 

 1865.— Walker, Cat. Brit. Mus Pt. xxxii, p. 450. Hatima. 

 1892.— Sniith, Can. Ent. vol. xxiv, p. 135. 



salicis Hy. Edwards. 

 1877. — Hy. Edwards, Proc. Cal. Acad. Sci. vol. vii, p. 121. Heterocampn. 



riversii Behr. 

 1890. — Behr, Proc. Cal. Acad. Sci. (2) vol. ii, p. 94. Dryocampa. 

 Apical portion of wing cinereous, centre yellowish in %, dull olive-brown in 

 9 ; region along internal margin dark ferruginous brown; markings absent, or 

 very faint, veins blackish. A black basal dash and round discal dot, the latter 

 sometimes absent. Secondaries white in % , cinereous gray in 9 , with a gray 

 spot at anal angle. Expanse 33 — 36 mm. 



Hab. — Atlantic States westward; Calitbruia ; Idaho (Packard). 



^i. exiinia Grote. 



1881. — Grote, Bull. U. S. Geol. .Siirv. vol. vi. p. 275. Oedemasia. 

 Thorax gray, patagia tipped witl; brown. Resembles concinna. but is larger 

 and the wings more pointed. The wing is more shaded with gray, less distinctly 

 yellowish, centrally in the %, , so that the sexes are closely similar. The red 

 shade along internal margin is less distinct, being partly blackish. Transverse 

 maculations absent. Discal dot minute or absent. Secondaries pale grayish in 

 % , darker in J , with indications of a whitish Iiand and dark spot at anal angle. 

 Expanse 42 — 50 mm. 



Hab. — Northern Atlantic States, Pacitic Northwest. 



K. peraiigiilata Hy. Edwards. 



1882. — Hy. Edwards. Papilio vol. ii, p. 125. Oedemasia. 

 Thorax as in eximia ; costal half of wing toward apex bright gray, tiie veins 

 black lined, subapical black dashes present; lower half of wing and base yel- 

 lowish, slightly marked. Transverse lines obsolescent, the t. a. discernible, 

 blackish, lunulate, pul vei-ulent. T. p. line represented by some reddish marks. 

 A black basal dash; di.scal dot lunate, followed by a black cl()ud. Secondai'ies 

 white, with black spot at internal angle. Rather variable, the wing sometimes 

 quite uniformly colored. 

 Hab. — Colorado, Utah. 



