( 421 ) 



antemedian band filled in with black, very obliqne ; stit^iua rather largo, dot in 

 front of it distinct; apical black halfraoon not distinctly separate from the black 

 submarginal area ; yellow area of bindwiug extending to abdominal margin. 

 Teutli abdominal segment difl'ering from that of nictitans in the tergite being 

 shorter and, at apex, broader, and in the sternite being more strongly curved at end 

 and not being dilated into a tooth in middle, resembling in the latter respect the 

 sternite of N. riscus (PI. XLL f. 25). Harjie sharply truncate, or {t'/pe) the 

 ventro-apical edge slanting. Whip of penis-sheath long, about as long as the sheath 

 itself; left lobe or sheath evenly rounded ; armature of penis-funnel symmetrical as 

 in nictitans, with one strongly dentate process on each side, these processes leaning 

 towards each other, and a low ventral ridge which is triangularly raised at 

 each side. 



Hab. Brazil : Espirito Santo to Parana. 



In the Triug Museum 1 6 from Castro, Parana (E. D. Jones). 



355. Nyceryx alophus. 



*PerUjOina nfjihiis var. aloplius Boisduval, Sjyec. Gin. Lep. Net. i. p. 31^3. sub n. 5 (1875) (Bahia ; — 

 coll. Charles Oberthtir). 



S ? . Fringe of mesothoracic tegula not quite so white as in confinim, pronotum 

 and anterior part of mesonotum more or less variegated with brown ; forewing more 

 variegated than in continua, owing to the lines being more distinct ; antemedian 

 band filled in with black {type) or not : stigma narrow, elongate ; an abbreviated 

 subbasal blackish band. Yellow area of hindwing reaching to abdominal margin. 



S . (Only alophus alophus dissected). Tenth segment and har|ie as in continua. 

 Whip of penis-funnel short ; armature of penis-funnel (PI. LIII. f. 45) symmetrical ; 

 a short, heavily dentate process at each side of the funnel, and a longer, compressed, 

 apically rounded and slightly widened process which curves mesiad and is densely 

 beset with minute teeth. 



Hab. Bahia to Buenos Ayres and S.E. Bolivia. 



Two subspecies : 



a. N. alophus alophus. 



*Periijoiiia nf/i!iiii< var. itlojihns lioisduval, /.r. (Bahia). 



Periyonia neplnia var. a. P. ulni>hu>i, Kirby, Cnl. Lep. Iht. i. p. 1)37. sub n. 7 (1H92). 



Perigonia nephus, Bi3unii]ghausen, Iris xii. p. Vi'A. n. T.I (1899) (Rio de Janeiro). 



cj?. This is the Brazilian form, wliich is rather darker than the following 

 subspecies. 



Huh. Bahia to Parana, Brazil. 



In the Tring Museum 5 cJcJ, 1 ? from: Espirito Santo; Sao Paulo; Castro, 

 Parana (E. D. Jones). 



b. N. alophus i.cion. 



Perigonia ij-inii Burmeister, Desi'i: Rip. Arfinit,. v. p. ?>ili. b\t> (187R) (Paraguay ; Buenos Ayres) ; 



Kirby, Cat. Up. IlH. i. p. G:i7. n. 8 (1892). 

 Perif/onia iiejjitux, Burmeister, l.i\ .Ithis p. 2'.). t. 10. f. (1879) (S. Cruz de la Sierra, Bol., Gran 



Chaco). 



(J 9 . Paler than the previous subspecies; antemedian band of forewing nut 

 filled in with black. Whether this form is constantly difl'ercnt we do not know. 

 We have seen only a few sjiecimens. 



JJab. Argentina, northward to P.olivia and Paraguay. 



