NO. 2043. NEW MICBOLEPIDOPTERA FROM PANAMA— BUSCK. 21 



wings. Head and thorax smooth. Forewmgs with costa straight to 

 apical fourth, thence deflected; apex tolerably pointed; termen 

 oblique, slightly sinuate; tomus rounded; 11 veins; one costal vein 

 [9] absent or 7 and 8 coincident, stalked with 9; 2, 3, 4, and 5 nearly 

 equidistant; 4from the conier of thecell; 1 6 furcate at base. Hind- 

 wings quite as broad as the forewings, broadest at tornus; with color 

 pattern; costa straight; apex blunt; termen not much oblique and 

 hardly sinuate; 7 veins; vem. 5 absent; 3 and 4 connate; 6 and 7 

 connate. Posterior tibiae hairy above. 



Related to Menesta Clemens and the Dichomeris group; amply 

 differentiated from any described genus by the venation and by the 

 ornamented hindwings, which give it a CJioreutid appearance. 



PAVOLECHIA ARGENTEA, new species. 



Second joint of labial palpi bright saffron yellow; terminal joint 

 dusky. Face ochreous fuscous. Antennae dark brown. Head and 

 thorax greenish or purplish metallic brown, according to the light. 

 Forewings dark blackish brown with a bright, bluish metallic sheen; 

 a round, silvery white dot on the cell and an oblong, silvery white 

 dash at the end of the cell; cilia golden yellow at apex, otherwise 

 dark brown. Hindwings blackish brown with a large silvery white 

 spot on the middle of costa and a somewhat smaller similar spot just 

 below it on the dorsal edge; apical cilia tipped with silvery white; on 

 the underside is a complete silvery white fascia in the place of the white 

 spots and a less complete narrower white fascia at basal fourth; 

 underside of the f orewing has the two silvery white spots of the upper 

 side and a third such spot below them on the dorsal edge. Abdomen 

 blackish brown, bidescent on upper side; underside silvery white. 

 Legs blackish brown with silvery white annulations on the middle 

 and at the tip of the tibiae. 



Alar expanse. — 11mm. 



HaMtoi.— Trinidad River, Panama, March. 



Type-specimen.— Csit. No. 16679, U.S.N.M. 



A brilliant day-flying moth reminding one of the genus Brenthia 

 Clemens. 



PROMENESTA, new genus. 



Type. — Pro7nenesta litlwcJiroma, new species. 



Labial palpi long, recurved; second joint slightly thickened with 

 appressed scales; terminal joint slender, acute, nearly as long as 

 second. Antennae three-fourths the length of the forewings. Fore- 

 wings with costa gently arched ; apex rounded ; termen perpendicular; 

 dorsum straight; 10 veins: 7 and 8 coincident; 2 and 3 coincident; 

 rest separate. Hindwings broader than the forewings, apex blunt; 

 termen and dorsum rounded; 8 veins: 6 and 7 stalked; 3 and 4 

 stalked; 5 approximate to 4. Posterior tibiae rough-haired above. 



