288 William T. M. Foebes 



trapezoidal, without decided produced apex; hardly as wide as fore wing; R and 

 Mj connate. Fore wing with metallic markings. 



An exotic species has been bred from a fungus bed in a termite nest. 



Key to the species 



Narrow blue dots and dashes irridipennella. 



Broad spots and bands emblemella. 



1. S. emblemella Clemens. Fore wing brown-black, with steel-blue markings: 

 a basal band, and antemedial band from costa across cell, a very irregular, narrower 

 medial band, partly fused with the discal dot and forked toward inner margin, a 

 costal spot four-fifths way out to apex, and a subterminal band reaching two- 

 thirds way to costa and very irregular on outer side. The bands easily become dulled 

 in old specimens. 9 mm. 



June and early July. Caterpillar possibly on buckeye. 



Western New York to District of Columbia, southern Ohio, and Kentucky. New 

 York: Rock City (Cattaraugus County), Taughannock Falls (Ithaca). 



2. S. irridipennella Clemens. Shining deep brown. Fore wing marked with bright 

 iridescent blue. A strongly oblique line from costa a fourth way out across cell 

 and fold; a slightly more erect median line running into cell, and a longer one, 

 almost three-fourths way to apex. A short bar four-fifths way out and a bar 

 on inner edge near middle; the longer lines sometimes broken into dots (about 

 10 in all). 10 mm. (aphroditeella Chambers, proserpinella Frey. ) 



June to August. 



District of Columbia to Missouri. New York: Robinson Collection (presumably 

 from New York ) . 



13. DUVITA Busck 

 (Anacampsis, Aprocerema, Untomia, in part; with Battaristis Meyrick) 



Similar to Stomopteryx and Anacampsis. Palpus with second joint smoothly 

 thickened and abruptly cut off, third slightly thickened. Fore wing normal, Mi 

 not stalked, M 3 and CUj sometimes stalked, typically free. Hind wing about as 

 wide as fore wing, trapezoidal, with somewhat produced apex; R and Mj stalked, 

 M 3 and CUj connate, discocellular vein imperfect. Palpus shorter and hind wing 

 less produced than in Stomopteryx. Fore wing in all our species with a black 

 dot immediately below the apex as in Epithectis subsimella. 



Key to the species 



Deep rust-red, banded with gray 1. vittella. 



White shaded with luteous 2. nigratomella. 



Light fuscous. 



A straight, oblique, white postmedial line 3. concinusella. 



A curved, and often obscure, postmedial line 5. conclusella. 



Dark smoky gray 4. tahamisella. 



I. Apex of hind xoing strongly produced (Duvita). 



1. D. vittella Busck. Palpus with second joint black-brown outwardly, tipped 

 with white; third whitish with broad black annulus; head and thorax whitish 

 fuscous ; face pale. Fore wing bright brown with white bands, strongly dusted 

 with steel gray, much as in Paralechia pinifoliella, but without tufts; basal half 

 of costal edge dark brown; two transverse gray and white fasciae, the median 

 one strong, defined on basal side; outer margin and apex also gray and white, 



