108 PROCEEDINGS OF THE NATIONAL MUSEUM tol. 90 



band with large, hairy, lateral lobes. Gnathos an oval spined knob. 

 Socii very large flaps clothed with many fine hairs. Tegumen pointed. 



Female genitalia. — Genital plate narrow, strongly sclerotized and 

 produced anteriorly. Ostium round. Ductus bursae membranous, 

 gradually becoming larger to form the large oval bursa copulatrix. 

 Signum a large four-pointed plate, the anterior and posterior points 

 of about equal length but smaller than the lateral points. 



Alar expanse, 18-22 mm. 



Type. — In the United States National Museum. 



Type locality. — Cabin John, Md. 



Food plant. — Senecio aureus L. 



Distribution. — Eastern United States. 



United States records 



District of Columbia: Washington, 8 5 (J, 9 (May 28 to June 16, 1900, August 



Busck). 

 Maryland: Cabin John, 2 S S (IV-28 and 30-1900, August Busck) ; Plummers 



Island, 3 5 5 , 11 $ $ (May and June dates, A. Busck and Chas. R. Ely). 

 Virginia: Great Falls, 9 (May 28, 1900, no collector), 



AGONOPTERIX ANTENNARIELLA, new species 



Plate 30, Figuees 175, 175a ; Plate 45, Fig-dbe 264 

 A medium-sized red-brown species unlike any other described from 

 North America. 



Head dark reddish fuscous above mixed with carmine and whitish- 

 ochreous-tipped scales ; face shining whitish ochreous ; second segment 

 of palp)us whitish ochreous tinged with carmine inwardly and irrorated 

 with fuscous exteriorly; brush trumpet-shaped; terminal segment 

 whitish ochreous with broad blackish-fuscous basal and subterminal 

 annuli. Antenna fuscous, aimulated with whitish ochreous. 



Thorax, base of fore wing, and costa to well beyond middle cine- 

 reous; anterior portion of thorax and extreme base of costa suffused 

 with rich brown ; ground color of fore wing red-brown, scales lightly 

 tipped with carmine ; at basal third two small obliquely placed black 

 discal spots followed by a few cinereous scales ; at end of cell a third 

 white discal spot edged with black; apical third of wing heavily 

 shaded with cinereous; cilia reddish fuscous, tipped with carmine; a 

 row of fuscous spots around tennen at base of cilia. Hind wing light 

 fuscous above ; with much white scaling beneath in apical third and a 

 black line at base of cilia ; cilia light fuscous with distinct rosy hue, 

 and darker subbasal band. Legs fuscous overlaid with whitish 

 ochreous and strongly suffused with carmine ; hind tibiae whitish, suf- 



