( 408 ) 



Tenth segment similar to tliat of gorgon, lateral processes of tergite shorter. 

 Clasper broader than in gorgon, apex rounded ventrally, process very short 

 (PI. XLVII. f. 16). Penis-sheath with a short, apical, horizontal, triangular 

 process. 



?. Body and ibrewing mnmmy-brown above ; body not much i)aler below. 



Forewing, upperside : chocolate-black discal area gradually narrowed to a jioint 



behind, not angulate before M^ ; apex of wing not sinuate. Hindwing also 



darker brown than in gorgon, as is the underside of both wings. 



Length of forewing : S, 29 mm. ; ?, 2(1 mm. 



Hab. Panama to Bolivia ; Brazil. 



In the Tring Museum 3 <?(?, 1 ? from : Rio Dagna, Colombia (W. Rosenberg) 

 tt/pe ; Brazil ; Sta. Catbarina. 



In coll. Charles Oberthiir from Balsapamba ; Juntas, Cauca (Mathan). 



In coll. Staudinger from Chiriqui ; Huayabamba, Pern ; Rio Songo, Bolivia 

 (Garlepp). 



Also in other collections. 



Herrich-Schiiffer's figure represents this insect, which in the c? differs from 

 all the other species in the presence of a deep cavity on the forewing near the base. 



C;il. PACHYGONIA.— Typus : .vihhamata. 



Perigonia Walker, List Lep. Ins. B. M. viii. p. 102 (1856) (partim ; type: xtulta). 

 Macroglossa, Schaufuss {mm Ochsenheimer, 1810), Niinq. Olios, i. p. 20 (1870). 



Pachygimia Felder, Rasr Nnvaru, Lep. t. 75 (1874) {nom. hidescr.) ; But]., Tranx. Zonl. Sue. Loml. 

 ix. p. 633 (1877) (type : siMmmnta). 



c??. Antenna without trace of a club, gradually thinning at end into a long 

 slender hook, with short conical end-segment ; strongly compressed in c?, cylindrical 

 and more setiform in ¥ . Palpus long, ascending above tlie eye, closely appressed 

 to head, rounded in side-view, tbe two palpi obtusely angulate mesially in dorsal 

 view. Abdominal tergites with a number of rows of spines at the edges, the s])ines 

 all elongate, the uppermost longer than broad, the lowest long, jjale in colonr, 

 weak ; spines of sternites weak ; last tergite (8th in <?, 7th iu ?) broad, scales 

 forming in <S three tufts, one in middle and one at each angle, these tufts short 

 in ¥, especially the middle one; seventh sternite of ? broad, deeply and broadly 

 sinuate, its edge spinose only at the sides. Mernm of midcoxa not angulate ; 

 hindtibia appearing compressed owing to the prolonged ventral and dorsal scaling ; 

 first hindtarsal segment with the scales ventrally at base and dorsally prolonged 

 into triangular crests, a similar dorsal crest upon the second and third segments, 

 excepting /■i/jl/i'i ; hindtarsns compressed, four rows of spines, with few or no 

 additional s])ines between the fii'st and second row ; spines of fourth row of mid- 

 tarsus somewhat prolonged, but stont. SC^ and R' of hindwing from upper angle 

 of cell, R^ before centre, D^* very oblique, lower angle of cell acute, D' about one- 

 third of D' ; hinder angle of forewing projecting backwards, the hinder margin being 

 sinuate before angle. 



<S. Tenth tergite and sternite simple, not divided, elongate, the former densely 

 clothed with stitf hairs, which are directed upwards and proximad. Clasper broad, 

 no friction-scales ; harpe with a short prot'ess ; a patch of short, stitf, spine-like 

 hairs on inner surface of clasper. Penis-sheath ending in a short twisted ])roce8S, 

 which is not movable ; jienis-fnnuel without special armature. 



