1892.] SPECIES OF LEPIDOPTERA HETEROCERA. 335 



Heterocampa EPONA. 



Primaries above dull greyish green, with a large grey space on 

 the costal margin, from the middle of the wing to the marginal 

 transverse line, which is wary, brownish green ; the basal and 

 median lines rather indistinct ; the outer line fine, lunular, dark 

 grey ; the extremities of all the veins brownish. Secondaries above 

 light grey, with a brown transverse lunular line starting from the 

 costal margin near the apex, but not extending far. Head and 

 thorax dull greenish. Abdomen light brown, with somewhat darker 

 subdorsal tufts. 



Expanse 3/ mm. 



Hab. Peru. 



Heterocampa atrax. 



Male. Primaries above blackish grey, light grey at the base ; 

 some submarginal light grey shades ; the fringe light grey spotted 

 with black : the transverse lines black, very indistinct, beino- 

 absorbed by the general ground-colour. Secondaries white, the 

 inner margin with long dark hairs, the outer margin narrowly dark 

 grey ; the fringe whitish ; the costal margin with some transverse 

 dark grey shades. Head and thorax dark grey. Abdomen dorsally 

 reddish brown at the base and extremity, otherwise dark grey. 

 Underneath, body and primaries light grey. Secondaries white. 



Expanse 52 mm. 



Hab. Corcovado, Rio Janeiro. 



Heterocampa perilleus. 



Primaries above light brownish grey ; a median wavy black line, 

 preceded by a large blackish space, on the costal margin ; the median 

 space is crossed by an angular, dark grey line, and there are two 

 small pale shades in the cell ; the outer line is black, irregular, and 

 followed by some broad dark brown shades ; there is a marginal 

 white shade, with inwardly a series of irregular black spots ; a sub- 

 marginal fine, lunular line ; the fringe light grey, spotted with 

 brownish grey : underneath blackish. Secondaries' white, with the 

 outer margin broadly dark grey ; the extreme margin whitish, with 

 the end of the veins dark grey and the fringe white ; just above 

 the anal angle a dark streak. Head and collar dark brown. Thorax 

 grey. Abdomen grey, darker dorsally, and with a black transverse 

 line on the anal segment. 



Expanse 46 mm. 



Hab. Novo Friburgo. 



Symmerista dentata. 



Primaries cinereous brown, the costal margin very broadly darker, 

 the basal half being violaceous brown, the apical half paler brown ; 

 this space is limited by an irregular velvety brown line, which starts 

 a short distance from the base, follows through the cell, at the end 

 of which it has a posteriorly prolonged tooth, and continues to the 

 outer margin. Secondaries cinereous brown. Palpi dark brown. 



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