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



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

 114 mm long. 



G. triptolemus Ehrin. $. Body above dark brown. Forewing above dark brown, on the fascia there Iriiildlcimis. 

 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 brown. 

 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 forewings, 

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

 Length of tails: 4I/2 mm. Expanse of wings: 52 mm. Bagasas, Costa Rica. 



6. Genus: Plestia Mcih. 



In its anatomical marks it corresponds with E^idanms, 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 Mab. is above red-brown with yellow hyaline spots, being similarly arranged as in .■^lauiliitijtri. 

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



P. dorus Edw. (172 c) from South Arizona and Mexico has a reddish-brown upper surface with 3 (ioni>i. 

 yellowish discal spots, 2 or 3 minute apical spots and an antemarginal 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. <£• »S'. (172 c). Here the distal macular band of the forewing contains two small spots clircni. 

 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 brown, kikk-inaii. 

 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'.,Hiiii, taken in January. 



7. Genus: Heteropia Mab. 



Large, robust animals with a moderately strong, gradually thickezied 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 imalina. 

 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 incomjslete 

 spotted transverse bands. Costa Rica to Colombia. 



H, bryaxis Heiv. (161 f) is above marked the .same, but like the following species above brownish- br!/a.rh. 

 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 browjiish-black, the 

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



H. cyda G. <£• S. (161 f) is very closely allied to bryaxis, but above much darker brown, almost ri/du. 

 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 purely 

 white. Mexico to Honduras. 



H. melon G. cL- S. (161 f) likewise approximates ftryaa-ii', being somewhat larger, above also ochreous- iiKimi. 

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



