PLESTIA; HETEROPIA. By Dr. M. Draudt. 859 



dark brown, the marginal band and the tails are of a pure white except 4 faint lunae in the apical area. Tails 

 11; 2 mm long. 



G. triptolemus Ehrm. $. Body above dark brown. Forewing above dark brown, on the fascia there irlptolemus. 

 is a transparent stripe composed of 4 dissimilar spots. In the median cell beyond this stripe there is a narrow, 

 diaphanous spot right across the cell, in the subapical area a row of 4 very small transparent spots. Hindwings 

 a little lighter than the forewings, the tails white. The apical fringes are white, above slightly mixed with 

 brown. Fringes at the border and at the tails very long and of a pure white, the anal fringes shorter and browTi. 

 Under surface much lighter than above ; ground-colour of forewings lighter than above, with the same markings 

 as above, but the transparent stripe is more prominent. Ground-colour of hindwings like that of the forewdngs, 

 on the fascia there are three brown stripes indicated; the border purely white, tails brown, with white fringes. 

 Length of tails: 4% mm. Expanse of wings: 52 mm. Bagasas, Costa Rica. 



6. Genus: Plestia Mob. 



In its anatomical marks it corresponds with Evdamus, but the hindwing has no tail, but a deeply dentated 

 distal margin and a somewhat prolonged, rounded anal lobe. The antennal club represents a uniformly curved 

 spindle tapering gradually. Body and wings very hairy. 4 species: 



P. staudingeri Mob. is above red-brown with yellow hyaline spots, being similarly arranged as in staudimjeri. 

 the following, but the hindwing shows two hyaline bands and is more dentate. Described from Guatemala. 



P. dorus Ediv. (172 c) from South Ai'izona and Mexico has a reddish-brown upper surface with 3 dorus. 

 yellowish discal spots, 2 or 3 minute apical spots and an anteiBarginal band extending from the lower radial 

 vein close to the proximal margin. The hindwing shows behind the cell a hyaline band, being distally somewhat 

 concave. Beneath the proximal margin of the forewing is broad honey-coloured, the hindwing exhibits 3 dark 

 brown transverse bands. 



P. elwesi G. & 8. (172 c). Here the distal macular band of the forewing contains two small spots elwesi. 

 more ; beneath the hindwing is of a pure yellow, with a macular band above the base and 2 black median spots 

 .enclosing a white spot near the costa, and a series of black marginal dots. Very closely allied to dorus. Central 

 America. 



P. kikkawai Weeks from Venezuela is, according to the indistinct description, above dark bro-rni, kikkau-ai. 

 the forewing with 9 white spots, the largest of which is situate in the middle of the discal area, with darker 

 margins. Costal margin and base of hindwing above white; in the middle of the wing a white spot with a 

 small one attached to it, outside indistinct, small brown spots, and at the border a light brownish line. Beneath 

 the hindwings are darker, with the white markings of the upper surface. A small species of an expanse of 

 30^/2 Dim, taken in January. 



7. Genus: Heteropia Mab. 



Large, robust animals with a moderately strong, gradually thickened antennal club being bent like 

 a hook and ending into a fine point. The cell of the forewing is exactly two thirds of the length of the costal 

 margin, the ^ has no costal fold. The upper discocellular is very short, the two lower ones turned obliquely 

 proximad, of the same length; the upper median vein rises near the cell-end, twice as distant from the lower 

 radial vein as from the upper one. The hindwing are slightly angled on the inner-marginal vein. The posterior 

 tibiae show 2 pair of spurs. The species occur in Central and South America. 



H. imalena Btlr. (= imitatrix Mab.) (161 f upper surface, 171 d under surface) is above black, with imalena. 

 a blue reflection and an oblique, white, discal hyaline band, in the angle between the radial and median vein 

 with an isolated, longish spot and 2 or 3 minute apical spots ; fringes speckled white and black. Under surface 

 dark brownish-grey, marbled lighter, on the hindwing towards the margin lighter lilac-grey, with 4 incomplete 

 spotted transverse bands. Costa Rica to Colombia. 



H. bryaxis Hetu. (161 f) is above marked the same, but like the following species above brownish- hrya-rw. 

 black, towards the base lighter ochreous-yellow. Beneath very much like imalena, the transverse bands of 

 the forewings more distinctly prominent, towards the proximal margin of a deep velvety brownish-black, the 

 ilac-grey distal area the lightest near the proximal angle. Mexico to Guatemala. 



H. cyda G. cfc <S'. (161 f) is very closely allied to bryaxis, but above much darker brown, almost cydu. 

 without any ochreous brightening, and on the hindwing with an indicated darker discal and marginal band. 

 Beneath the ground-colour of the hindwing is of a rather uniform lilac-grey, at the anal angle almost pm-ely 

 white. Mexico to Honduras. 



H. melon G. & S. (161 f) likewise approximates bryaxis, being somewhat larger, above also oclneous- mdox. 

 yellow towards the bases of the wings, with mostly larger discal macular bands. Beneath the colom- of the 



