4 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.47. 



ATOPONEURA, new genus. 



Type. — Atoponeura violacea, new species. 



Labial palpi long, recurved; second joint thickened with appressed 

 scales, compressed, slightly rough posteriorly; terminal joint thickened 

 with scales except at extreme tip, compressed. Antennae three-fourths, 

 simple. Tongue well developed, spiraled. Head and thorax smooth. 

 Forewings elongate, narrow; costa and dorsum nearly straight and par- 

 allel; tip of the wing rounded; apex below the median Hne; termen 

 rounded; 11 veins; 7 and 8 coincident; 6 to costa; 5 to apex; 2 and 3 

 stalked. Hindwings broader than forewings; costa deflected beyond the 

 middle; apex blunt; termen slightly sinuated; dorsum nearly straight; 

 flexus prominent; 8 veins; 3 and 4 connate; 5 cubital; 6 and 7 closely 

 approximate; cross vein between 7 and 8 at basal fourth. Posterior 

 tibisB hairy above. 



Nearest to and correlated with Simo.neura Walsingham and like it 

 with vein 6 in the forewing running to costa but further advanced in 

 having 5 to apex and 3 and 4 stalked. 



The form of the labial palpi also distinguishes it from this genus. 

 Only one other American genus is known with a similar venation in the 

 forewing, i. e., Idwcrates Meyrick,^ which differs, however, in having 

 vein 2 and 3 separate while the venation of the hindwings [6 and 7 

 parallel and 5 absent] proves it not at all related to the present genus. 



ATOPONEURA VIOLACEA, new species. 



Labial palpi golden metallic yeUow with base and terminal joint 

 shaded with black exteriorly. Antennae purphsh black. Head and 

 thorax bluish black, iridescent; face a shade hghter. Forewings 

 black, overlaid with metallic, hght blue scales and with a strong 

 purplish sheen, especially toward apex, which, as well as the ciha, in 

 certain light appear like burnished copper. Hindwing dark fuscous. 

 Abdomen bluish fuscous. Legs bluish gray on the inside, black 

 exteriorly. 



Alar expanse. — 14 mm. 



Habitat. — Trinidad Eiver, Panama, March. 



Type-specimen.— CQ.t. No. 15816, U.S.N.M. 



The species appears plain black and inconspicuous in dull light, but 

 in reflected light it is a very brilliant insect. 



BELTHECA, new genus. 



Type. — Beltheca picolella, new species. 



Labial palpi long, recurved; second joint thickened with scales, 

 which are smoothly applied on the under side, but form a short brush 

 on the upper side; terminal joint longer than second, slender, acute. 



1 Trans. Ent. Soc. Lond., 1900, p. 19. 



