214 THE CANADIAN ENTOMOLOGIST. 



Hind wing pale yellowish, faintly tinged with pink, quite markedly 

 so beyond a rather indefinite, incomplete, blackish mesial shade, fringe 

 concolorous, paler outwardly. Beneath fore wing pink along costa and at 

 apex, fading into a more yellowish tint towards inner angle. Yellowish 

 along inner margin, blackish-fuscous centrally. The outlines of the Y 

 mark can be discerned, though faintly. Hind wing yellowish, overcast 

 with pink along costa and to a lesser degree along outer margin. Head, 

 thorax and abdomen concolorous with wings. Palpi yellowish-white, 

 slightly dusky outwardly. Thorax, legs and abdomen yellowish -white. 



Type, I ^ , Southern Arizona. 



Heterocampa Wymola, n. sp. — Expanse, ^^Z '^'^'^^ 



Fore wings from costa to median vein and narrow bands along outer 

 and inner margins shades 'of light and dark gray, remainder of wing a dull 

 brassy-yellow. Veins darkened with black scales. A dark apical patch 

 running from apex to median vein, preceded by patch of lighter gray than 

 rest of costal area. The gray on inner margin darker than on costal or 

 outer margins. Only faint fragmentary indications of transverse lines can 

 be made out. A narrow discal bar is in evidence in the male, doubtfully 

 so in the female. A rather faint narrow marginal dusky shade. Fringe 

 concolorous, darker outwardly and at ends of veins and with a well- 

 marked black line at base. Hind wing of ^ almost white, showing very 

 slightly fuscous under lens. Of ? fuscous outwardly, with faint dusky 

 mesial band. 



Beneath fore wings dusky, lighter centrally and along outer margin. 

 Hind wings in J paler, fuscous along costa and outer margin. In $ as 

 above. Fringe of both wings concolorous, with scalloped basal black 

 line and black dashes through fringe at ends of veins. Head and thorax 

 rather dark gray, the latter ])Osteriorly and edges of patagia somewhat 

 darker. Some metallic tipped scales on thorax and patagia, especially at 

 their posterior parts. Abdomen yellowish-fuscous above and below. 

 Thorax and legs gray. Tarsi checkered black and gray. Palpi smoky- 

 brown, gray at tip. Antennae gray above, yellow beneath, bipectinate 

 in ^ almost to tip; in 9 serrate. 



Types $ and $ , Pinal Co., Arizona. From Mr. Poling. 



Thyridopteryx Alcora, n. sp. — Expanse, 25 mm. 



Head, thorax and abdomen jet black. Wings hyaline, very sparsely 

 coated with black scales. Costal edge narrowly black, somewhat broader 

 beyond cell before apex. Subcostal and median veins as far as end of 



