AMERICAN MOTHS OF THE SUBFAMILY PHYCITDSrAE 



37 



tions along one lateral edge towards apex, moderately 

 stout ; penis with a few sclerotized wrinklings, otherwise 

 unarmed. Vinculum stout, shghtly longer than great- 

 est width; terminal margin broad. 



Female genitalia with bursa large and elongate, 

 signum present, developed as a small, scobinate, cup- 

 shaped depression, ductus bursae very short; genital 

 opening with a narrow, short, sclerotized plate on its 

 lower margin and a large semicircidar, sclerotized and 

 scobinate dorsal plate in the membrane behind the 

 opening; a pair of ventral scobinate plates in the inter- 

 segmental area between eighth segment coUar and 

 ovipositor; ductus seminalis from lobe of bursa near 

 ilB junction with ductus bursae. 



A distinct genus containing one described North 

 American species. The venation of the hind wing is 

 individually variable in the amount of stalking or 

 anastomosis of veins 4 and 5. 



65. Bertelia grieella Barnes and McDunnough 



Figures 187, 669 



Bertelia grisella Barnes and McDunnough, Contributions, vol. 2, 

 p. 140, 1913.— McDunnough, Check List, No. 6140, 1939. 



Forewing pale ashy gray dusted with fuscous; faint 

 interrupted black streaking on upper and lower veins 

 of cell, the lower fold and some of the veins beyond 

 cell; antemedial line obscure, indicated chiefly by its 

 narrow blackish outer border (out-angled from costa) 

 and by a whitish incurved line between cell and inner 

 margin, preceding which is an obscure dark shading; 

 subterminal line nearly obsolete, followed on costa by 

 a blackish shade; discal dots obsolete on many speci- 

 mens, occasionally indicated by a small blackish dot 

 at lower outer angle of cell. Hind wing semihyaline 

 white with a faint ocherous tint; veins not appreciably 

 darkened ; a faint fuscous line along outer margin. Alar 

 expanse, 24-30 mm. 



Male genitalia with apex of uncus bluntly and nar- 

 rowly rounded; terminal margin of vinculum slightly 

 angled; lateral arms of anellus moderately long and 

 broad. Female genitalia as given for the genus. 



Type locality: Redington, Ariz, (type in USNM). 



Food plant: Unknown. 



Disthibution: Arizona, Redington, Santa Catalina 

 Mts. (Sept.). 



16. Genus Hypargyria Ragonot 



Hypargtjria Ragonot, Nouv. Gen., p. 9, 1888, Monograph, pt. 1, 

 p. 122, 1893. — Janse, Journ. Ent. Soc. South Africa, vol. 4, 

 p. 149, 1941. (Type of genus: Hypargyria metalliferella 

 Ragonot; India.) 



Tongue weU developed. Antenna pubescent, basal 

 segment on male elongate with a short spur of scales 

 from its upper inner angle (giving the base of antenna 

 much the same appearance as that of the undenuded 

 two first segments of the male antenna of Mildrixia, 

 fig. 169f); male shaft with a deep sinus towards base 

 containing a longitudinal row of very minute teeth but 

 no scale tuft; antenna of female simple. Labial palpus 



uptm^ned, reaching a little above vertex; third segment 

 nearly as long as second, acuminate. Maxillary palpus 

 squamous. Forewing with transverse, antemedial ridge 

 of raised scales; 11 veins; vein 2 from before but near 

 lower outer angle of cell ; 3 from the angle, at base about 

 equidistant from 4-5; 4 and 5 connate or very shortly 

 stalked; 6 from upper angle of cell, connate with stalk 

 of 8-9, straight or but slightly bent towards base; 10 

 from the cell, approximate to the stalk of 8-9; male 

 with a notch in costa very close to base and on under- 

 side at base of costa a small knot of modified scales and 

 (projecting into the costal notch) a very short brush of 

 stiff hairs. Hind wing with vein 2 from well before 

 lower outer angle of cell ; 3 from the angle, connate with 

 stalk of 4-5 ; 4 and 5 stalked for slightly less than half 

 their lengths ; 7 and 8 closely approximate for less than 

 half their lengths beyond cell; cell slightly more than 

 one-third the length of wing; discocellular vein curved. 

 Eighth abdominal segment of male with compound 

 ventral scale tufts. 



Male genitalia with gnathos weak, lacking a central 

 projection, the lateral arms meeting at the base of a 

 rudimentary subanal plate. Uncus triangulate. Trans- 

 tilla incomplete, but with the elements long and stout, 

 their apices broadly developed. Harpe with costa 

 broadly and very strongly sclerotized and stoutly pro- 

 jecting at apex; a fine moderately long hair tuft from a 

 sclerotized disk attached to base of sacculus. Anellus a 

 broad, deep plate (bearing short, knoblike, stoutly 

 spined, lateral projections on the American species). 

 Aedeagus smooth; penis armed with two or more short, 

 rather stout, straight spines, a deeply wrinkled, sclero- 

 tized band, and a cluster of fine moderately long spines. 

 Vinculum very stout, considerably larger than uncus 

 and tegumen combined, longer than broad. 



Female genitalia with signum developed as a small, 

 round, scobinate, cup-shaped plate; ductus bursae 

 shorter than bm-sa, a broad, strongly sclerotized band 

 at the junction of ductus and bursa and a narrower 

 sclerotized band at genital opening; behind genital 

 opening a conspicuous pair of strongly sclerotized, gran- 

 ulate, pocket like lobes; ductus seminalis from bursa 

 near junction of bursa and ductus bursae. 



Presumably an Old World genus of tropical and prob- 

 ably African origin; possessing some structural char- 

 acters of Acrobasis, Mildrixia, and Bertelia but amply 

 distinct from any of them. It contains two American 

 species. 



66. Hypargyria definitella (Zeller) 

 Figures 188, 668 



Myelois definitella Zeller. Horae Soc. Ent. Rossicae, vol. 16, 



p. 205, 1881. 

 Hypargyria definitella (Zeller) Ragonot, Monograph, pt. 1, p. 124, 



1893. 



Forewing purplish ocherous to purplish brown, most 

 of basal area and costal half of median area white 

 sparsely dusted with red scales, the red dusting most 

 abundant along midcosta; a small ocherous patch on 

 inner margin near base; antemedial line evenly curved. 



