290 WILLIAM T. M. FORBES 



genus is derived from the similarly marked group of Auacampsis, and differs 

 mainly in the reduced hind wing. Duvita is a parallel development. 



Key to the species 



1. Third joint of palpus longitudinally striped with white 1. palpilineella, 



1. Third joint of palpus not striped. 



2. Fore wing with a curved white fascia at middle 2. kearfottella. 



2. Fascia two-thirds way out to apex, or obsolete ( 1 ) nigrella. 



1. S. palpilineella Chambers. Fore wing, head, and body dull black; extreme tip 

 of second joint of palpus white, third joint jet black with fine, often broken, white 

 stripes. Sometimes with traces of a pale postmedial line at costa and inner 

 margin. 8 mm. 



August. Caterpillar folding leaves of red clover. 

 New Jersey to Missouri and Louisiana. 



A. nigrella is probably western only (east to Kansas). It is very like A. pal- 

 pilineella, but with the palpus not striped. 



2. S. kearfottella Busck. Purplish black; antennae annulate with white; palpi 

 silvery white, third joint dusted with fuscous, darkening to tip. Face white; fore 

 wing with a slightly excuryed median white fascia. Fringe white-tipped at middle. 

 Hind wing slightly duller. Tibiae silvery white; femora black; tarsi dusky. 



July. 



New Jersey. 



15. POLYHYMNO Chambers 

 (Copocercia Zeller) 



Palpus with second segment hardly thickened, third much longer. Fore wing 

 narrow, rather oblong, caudate, the fringe strongly concave above and below the : 

 long-drawn-out apex. R and Ra very long-stalked in our species; hind wings nar- 

 rower, a.pex much drawn out and almost caudate, R and M! long-stalked, M 3 and 

 Cu x short -stalked, M, low, discocellular vein weak. Larva on Leguminosse. The] 

 genus also occurs in Africa. 



1. P. luteostrigella Chambers. Silvery white, thorax with four longitudinal 

 golden brown lines; fore wing with three brown lines from base to apex, and some 

 oblique ones at apex of costa, converging at apex of wing, and with anastomosing 

 dorsal lines, leaving inner margin white; dorsal fringe yellow. 9 mm. (fuscostri- 

 gella Chambers). 



August. 



Connecticut to South Dakota (Upper Austral Zone) and south. 



16. PARALECHIA Busck 

 (Gelechia, Aristotelia, in part) 



Palpi with third segment only three-fifths as long as second, blunt at apex 

 fore wing (fig. 165) with three pairs of raised tufts; Mi free; M 2 , M 3 , and C 

 long, approximate; Cu, shorter and* distant; with a reniform area of blackish se 

 scaling on under side, in male. Hind wing three-fourths as wide; long-trapezodia 

 outer margin a little waved; R and Mj very slightly divergent; M a cubital; 

 and Cu x almost connate, or stalked. 



1. P. pinifoliella Chambers. Shining deep yellow-brown; inner edge of fore wii 

 toward base, apex and apical fringes, and three bands, dividing the* wing int 

 equal parts, white, dusted with gray; the bands rarely broad and suffused; th 



