lyo SOUTH-AFRICAN BUTTERFLIES. 



of wing, rather broad, truncate at extremity. Eind- wings large, rounded, 

 somewhat prolonged inferiorly ; costa variable in convexity ; hind-margin 

 entire, or (in Clcodora) moderately dentate ; costal nervure usually ex- 

 tendino- to apex, but in Leda ending at some distance before it ; first 

 subcostal nervule much arched, given off far before end of cell ; disco- 

 cellular nervules very oblique, — lower one more than twice, or nearly 

 thrice as lono- as upper, and strongly sinuated ; discoidal cell more than 

 half as lono- as wing, more or less acuminate inferiorly at extremity ; 

 abdominal channel formed by inner margins complete, but not deep. 

 Legs short, slender ; femora hairy inferiorly for more than half their 

 length from base ; tibife set with short appressed silky bristles, and 

 sparsely and finely spinulose beneath, — their terminal spurs very fine ; 

 tarsi rather thickly spinulose. 



Abdomen rather long, deep, arched, clothed with long silky hair at 



base. 



I do not find ground for following Mr. Butler in limiting Eronia 

 to " E. Clcodora and the Lcda group," but would retain in it the other 

 African species, only separating from it the Asiatic and Austro-Malayan 

 species {Vakria, Cram., IIi2i2na, Fab., &c.), whose much longer abdo- 

 men, antennee, and fore-wings, as well as their totally diff'erent pattern 

 and facies, amply distinguish tliem.'' 



Eronia in general structure and neuration is near Tcracolus, differ- 

 ino-, however, in having the subcostal nervure of the fore- wings five- 

 (instead of four) branched, much smaller and blunter terminal joint of 

 palpi, and gradually formed, not flattened, club of antennae. In its 

 robuster body and gradually clavate antennae, and in outline of wings, 

 it exhibits some approach to Callidri/as (one species, E. Buqudii, in tint 

 and marking has quite the aspect of the pale species of that genus). 



The seven or eight species which Eronia contains are good-sized 

 butterflies, and present remarkable differences in pattern and colouring, 

 the $ being in some instances highly variable and quite unlike the $. 

 The type of the genus is E. Clcodora, in which the sexes are alike 

 white or yellowish, with a sharply-defined black hind-marginal border, 

 and have the under side of the hind-wings creamy-yellow bordered and 

 spotted with mixed brown and silvery-grey. E. Leda (on which Bois- 

 duval founded his genus Drijas) is vivid-yellow, with a brilliant-orange 

 apical patch in the fore-wings, and looks like a magnified Tcracolus 

 Auxo ; and the Madagascar E. Lucasi, Grandidier, is white with a 

 lemon-yellow apical patch. The males in E. Argia and Thalassina are 

 greenish-white and greenish respectively, with black borders, but their 

 females are coloured with ochre-yellow and orange-red in imitation of 

 certain species of Picris and Mylothris. Both sexes of E. Biiqucfii are 

 alike of a plain greenish-white, with a blackish apical hind-marginal 



' The (J s of this group are bluish or bluish-white, with black border and neuration, and 

 the ? s, by a modification of these markings, closely mimic various species of Danais. (See 

 Wallace, Trans. Ent. Soc. Land., 1867 (voL iv ), p. 309.) 



