2 PKOCEEDINGS OF THE NATIONAL. MUSEUM. vou 66. 



gradually approaching third on apical section; apex of fifth vein 

 deflected. 



Length, 2-3 mm. 



Type, and 10 paratypes, Higuito, San Mateo, Costa Rica (P. 

 Schild). 



Type.— Male, Cat. No. 26684, U.S.N.M. 



STEGANA ATRIMANA Malloch. 



Female. — Head testaceous yellow, ocellar region fuscous, cheek sil- 

 very white; antennae yellow, third segment mostly black; palpi 

 yellow. Thorax yellowish brown, whitish at humeral angles and in 

 center of pleura, the upper pleural vitta and one below middle dis- 

 tinct, mesonotum not vittate. Abdomen shining fuscous. Legs pale 

 tawny yellow, apices of fore femora, fore tibiae from near bases to 

 near apices, and basal four segments of fore tarsi black, mid and 

 hind femora largely brown, tibiae more or less brownish basally. 

 Wings brown, subhyaline along hind margin, Ivnobs of halteres 

 brown. 



Eye fully as long as high; cheek about half as high as width of 

 third antennal segment ; facial carina very low ; antennae extending 

 to mouth. Scutellum shorter than usual, apical bristles about half 

 as long as basal pair; each humeral angle with one bristle. Inner 

 cross-vein at middle of cliscal cell; fifth vein deflected at outer cross- 

 vein. 



Length, 2-2.5 mm. 



Type and two paratypes, Pliguito, San Mateo, Costa Rica (P. 

 Schild). 



rype.— Male, Cat. No. 26683, U.S.N.M. 



STEGANA CURVIPENNIS Fallen. 



Confined to North America and Europe. In National Museum 

 collection. 



STEGANA INTERRUPTA, new species. 



Female. — Head stramineous; frons with a large spot on anterior 

 margin and another on ocellar region connected by a black line, with 

 an hour-glass shape ; apex of third antennal segment, vibrissal angle, 

 sides of labrum, and apices of palpi deep black; upper half of oc- 

 ciput fuscous, lower half, orbits and cheeks silvery white. Thorax 

 tawny yellow, whitish on humeral angles and middle of pleura, with 

 two broad brown, poorly defined discal vittae which are most dis- 

 tinct anteriorly, a V-shaped black mark which has its apex below 

 prothoracic spiracle, one arm running upward in front of wing base 

 on to disc, and the other extending along middle of pleura to base 

 of haltere; a second fuscous vitta over lower part of pleura; disk 



