NORTH AMERICAN STENOMIDAE — DUCKWORTH 41 



membranous, without signum; inception of ductus seminalis near 

 ostium. 



Type : In the British Museum (Natural History) . 



Type locahty: Presidio, Durango, Mexico. 



Food plant: Pitheoellobium flexicaule Benth. Heinrich (1921) 

 states that the larva is a leaf-tyer, feeding on the food plant by bind- 

 ing together several leaves and feeding within the tie, eating first the 

 epidermis and later all but the veins of the leaves. Pupation occurs 

 within the tie, the pupa bemg naked and attached to one of the 

 leaves by a strand of silk. 



Distribution: texas: Brownsville (March, April, June, Aug.). 



Walsingham described a new genus, Aedemoses, and a new species 

 based on a unique female with hindlegs missing, collected at Presidio, 

 Durango, Mexico. 



13. Antaeotricha fuscorectangulata, new species 



Figures 14, 14a, 33; Plate 3a; Map 7 



Alar expanse 17-19 mm. 



Color: Antenna brown, irregularly shaded with white. Face whit- 

 ish, shaded lightly with brown; second segment of palpus white; 

 exterior brown basally; apical segment white. Legs whitish shaded 

 with brown, tarsi fuscous, inner side of foreleg fuscous. Thorax 

 ochreous, tegula whitish. Abdomen fuscous dorsally; ochreous 

 ventrally. Forewing white shaded with ochreous, rectangular 

 fuscous area along inner margin of middle third; two fuscous costal 

 spots, one near middle and one at apical fourth; from latter a row of 

 black dots extends from apex along termen to tornus; apical fourth 

 flecked with black scales; two fuscous dots on cell, one basal, one 

 distal; cilia brown basally and apically, white medially. Hindwing 

 light fuscous with whitish costal margin; cilia light fuscous basally, 

 white beyond. 



Male genitalia: Uncus arched, spatulate at apex; gnathos rounded 

 at tip; vinculum complete, produced into dorsally projecting process 

 in front; anellus with two laterally curved, pointed lobes; aedeagus 

 long, slender; cornuti a cluster of heavy spines. 



Female genitalia: Genital plate small, undifferentiated. Ostium 

 bursae sclerotized, opening at posterior margin of genital plate, 

 pouchhke evagination between opening and inception of ductus 

 seminalis; ductus bursae long, membranous; corpus bursae with 

 large sclerotized signum; anterior apophyses short, not fused to 

 genital plate. 



Type: South Fork of Cave Creek, Chiricahua Mts., Arizona. 

 USNM 65824. 



Food plant: Unknown. 



