18 PROCEEDINOS OF THE NATIONAL MUSEUM. vol.47. 



Alar expanse. — 14 mm. 

 Habitat. — Trinidad River, Panama, May. 

 Type-specimen.— Cut. No. 16672, U.S.N.M. 



Nearest and very similar to D. Jiexasticta TValsingham, but differing 

 in the number of discal dots and in the much darker hindwings. 



DICHOMERIS COSTALIS, new species. 



Second jomt of labial palpi with strong rounded tuft above and 

 beneath; ochreous at base, brush blackish, minutely dotted with 

 white; terminal joint blackish brown with silvery base. Lower face 

 golden ochreous; upper face and head colored like the palpal tuft. 

 Thorax dark brown; patagina light ochreous brown with a palpal 

 sheen. Entire costal part of the wing light oclireous bro\\Ti with a 

 violet sheen; this color is edged by a deep velvety black, longitudinal 

 streak from the mner angle of the wing to apex; this black color 

 gradually fades mto the dark blackish fuscous color which occupies the 

 dorsal half of the wing; a thin indistmct black Ime parallel with ter- 

 men; cilia dark fuscous with a faint ochreous base Ime. Hindwmg 

 shmy light fuscous; underside of ^\4ng with strong golden reflections. 

 Abdomen dark fuscous with golden ochreous underside and anal tuft. 

 Legs ochreous with fuscous tarsi. The males have a thin golden 

 yellow hair-pencil on each side of thorax at the base of the forewings, 

 which can be expanded up over the base of the wing. 



Alar expanse. — 20 mm. 



/7a&ito^.— Tabogilla Island and Porto Bello, Panama, February, 

 April. 



Type-specimen.— Cat. No. 16673, U.S.N.M. 



Closely alHed to D. arotrosema Walsmgham and D. varronia Busck, 

 and at once recognizable by its striking longitudinal wing pattern. 



DICHOMERIS EXCAVATA, new species. 



Second jomt of labial palpi smooth, TricJiotaplie-iormed, golden 

 orange, shaded on the upper side with black; termmal joint ochreous, 

 strongly suffused with black. Face silvery white; head deep metallic 

 blue. Thorax metaUic blue, laterally ochreous; patagina blue, 

 ochreous at tip. Forewing with undulatmg costa, strongly arched at 

 basal third, depressed on the middle and agaui arched at apical third ; 

 dorsal edge strongly excavated beyond the middle; tornus promiaent; 

 metallic blue with dark brown markings; at basal third is a broad, 

 outwardly convex deep brown velvety fascia; entke terminal third of 

 the wing deep blackish brown with a costal blue blotch extended as a 

 thin, blue, marginal line around the edge; on the middle of the wing 

 are four large, poorly defined, round, brown spots; cilia golden 

 brown with a basal marginal black Ime. Hmdwing dark fuscous 

 with bluish cilia; costa produced at apical fourth and there clothed 



