152 PTEEONYMIA. By R. Haensch. 



imradoxa. E. paradoxa Stgr., from the Cauca Vallej-, is a large species with colourless wings and narrow borders, 



only the costal and inner margins of the forewing have broad margins, the end of the cell is without marking, 

 Similar species are Napeogenes flossina (35 g) and Hymenitis quinta. 



praestigiosa. £• praestigiosa Hscli. closely resembles Dismeniiis cleonica (41 e), but is distinguishable at once by the 



acutely angled lower discocellular of the hindwing. The forewing is slightly shaded, the hindwing tinged with 

 yellowish; with white patches at the end of the cell of the forewing and the distal margins. The end of the 

 cell of the forewing is in the ^ very narrowly, in the $ broadly coloured with brown. The distal margins 

 are proximally produced into points at the veins. — A similar, smaUer species from Colombia, which I call 

 lobusa. lobusa spec, nov., has a yellowish patch at the end of the ceU, more weakly dentate distal margins, narrower 

 marks at the end of the cell and at the distal margin of the hindwing; on the under surface large white double 

 spots, which are entirely absent in praestigiosa. 



pliilodea. The following E. philoclea Hew. (39 d), from southern Brazil, has already quite the appearance of a Ptero- 



nymia, but still a distinct upper discocellular and radial in the hindwing of the (J(^. It has 5'ellowish wings 

 with black margins, half-band across the end of the cell and yellowish patch beside it. In the disc of the hind- 

 wing the veins are also yellowish. On the under surface the margins are dark brown-red, with white double 

 spots at the distal margin of the hindwing and the apex of the forewing. The costal margin of the hindwing 

 is yellowish with reddish spot at the base. The species recalls Ceratinia eupo77ipe (35 d), with which it occurs 

 munda. together. — munda Weym. is a form with broader margins and connecting streak between the half-band and 

 the inner margin of the forewing. 



27. Genus: Pteroiiyniia Bth. d Bruce. 



To this genus should rightly belong only species in which the upper discocellular of the hindwing is 

 absent and in the ^^ of which at least the greater part of the upper radial is coincident with the subcostal. 

 But when one has only female specimens it is often difficult to determine whether the species belongs to Ptero- 

 nymia or Episcada, for superficially forms of the two genera are often very similar. There are no distinctive external 

 characters for the whole genus, as in Leucothyris. The commonest pattern is that shown in zerlina (39 g) ; 

 yet there are also gay-coloured species, such as latilla, which recall Episcada. The forms belonging to Ptero- 

 nymia are rather numerous. They often occur in numbers, are mostly widely distributed and therefore not 

 rare. A few even occur in great profusion, such as zerlina, simplex, artena, euritea. The Andes from Bolivia 

 to Colombia produce the largest number of species. 



latilla. P. latilla Hew. (89 f), from Venezuela and Colombia, has transparent yellowish wings with yellow- 



brown dusting, especially at the base of the forewing and the inner angle of the hindwing. The apical half 

 of the forewing is blackish with 2 yellow macular bands. The margins of both wings and a spot in the cell 

 albicans, of the forewing are also blackish. • — • In ab. albicans Hscli. the yellow macular bands are whitish and the end 

 nigricans, of the cell of the forewing and the apical third of the hindwing are dusted with yellow. — In ab. nigricans 

 Hsch. the spot in the cell, the costal and inner margin, and also the end of the cell of the forewing and a band 

 on the median are broadly black-brown. It flies in Colombia. 



barilla. P. barilla Hsch. is a form similar to latilla; from western Ecuador. It has more delicate colouring, 



smaller yellow dots, a red-brown base to the inner margin of the forewing, slightly reddish colour on the hind- 

 wing and much smaller white marginal dots in the distal margin of the hindwing beneath. 



picta. P. picta Salv., from Colombia, has a blackish forewing, the base of the cell is brown, the middle yellow, 



across the end is jjlaced a black spot. In the distal half there are 2 yellow macular bands consisting of 4 or 

 5 spots. The hindwing is yeUow, with broad black distal margin and brcmi streak at the inner angle. 



notdla. P. notilla Btlr. d Bruce (39 f cj, $). The ^J has a similar pattern to laiiUa, but paler, also the dark 



spot in the cell is absent. In the $ the colouring is much lighter ; the cell shaded with dark and the hindwing 

 unicolorous. red-brown. This is the Central American form of the group, from Costa Eica. It has black 



olyrilla. antenna, while that of the preceding forms has a ^yellowish club. — olyrilla Bth. & Bruce, likewise from Costa 

 Eica, recalls the similar Bircenna olyras by the vitreous longitudinal band in the hindwing, and differs prin- 

 cipally in this from the preceding form. 



donella. p. donella Fldr., from Colombia, has a red-brown basal third to the forewing and a differentlj- shaped 



half-band at the end of the ceU. The hindwing as in the $ of notilla is uniformly red-brown with broader dark 

 distal margin. 



donata. P. donata {Bang-H. i. I.) is a smaUer form from Panama and Costa Eica with lighter colour and very 



broad, angled yellow band to the forewing, which extends from the costal margin across the end of the cell 

 to the inner margin. Otherwise the markings are similar to those of donella. 



(ulvimargo. P. fulvitnargo Btlr. & Bruce, from Costa Eica, is said to be similar to Episcada ohscurata and Bircenna 



olyras (36 e). The fore■v\^ng is transparent with faint yellowish macular band at the end of the cell and the distal 



