AMPLYPTERUS. By Dr. M. Draudt. 
861 
P. eurycles H.-S. (96 a). Very similar to strigilis, but easily discernible by much lighter yellow hind- euryclcs. 
wings and under surface of wings and body; forewing much more produced on vein 7, a subbasal large olive- 
black spot. The brown marginal band of the forewing beneath is broader; the antemarginal band on the hind¬ 
wing above is concave between 8 and 4 and strongly angled on 4. Colombia to Rio de Janeiro. Larva green, 
granulated yellow, the head triangularly pointed, with a yellowish lateral stripe on the 3 first segments, feebly 
yellowish oblique stripes anteriorly bordered with a darker green on the other segments, and 4 large orange red 
lateral spots on the 5th to 8th segments; horn almost straight, very long; on Anacardiaceae. 
P. fasciafus Gelilen (96 a) is allied to eurycles, but the head and prothorax are darker. Eorewing with fasdatus. 
more distinct antemedian and postmedian transverse bands and a lighter median area between them, interrupted 
dark between veins 2 and 3; subbasal spot less broad. The yellow basal area is more extensive, because the very 
strong 1st discal line is removed more distally; the discal lines are partly confluent. Very different from 
eurycles beneath, the dark marginal half distinctly contrasting with the light basal half. 1 3 from Sa. Catharina. 
P. xanthus R. cb J. resembles eurycles, but the posterior subbasal spot is narrower and more obliquely xanthus. 
arranged. Hindwing very pale chromatic yellow, the transverse lines as in euryalus, the first line broader and 
nearer to the cell, the marginal band narrower. Length of forewing: 60 mm. Costa Rica. 
P. euryalus R. ct J. (96 b) is very similar to eurycles, the 2nd abdominal segment less grey above; euryalus. 
forewing also less grey, more reddish-yellow, with larger olive green costal-marginal spots, the two spots at the 
cell-end and behind it are contiguous; marginal band blackish-brown, almost equably broad, apically pointed, 
bordered by a blackish line, proximally to it an olive green, sharply defined band which is much less sharply 
defined in eurycles and much broader between veins 5 and 6. Apex of hindwing obtuser, anal angle less produced, 
the black postdiscal band more uniformly curved. Venezuela; Peru. 
P, ockendeni R. & J . resembles euryalus, forewing more monotonous above, not so variegated, more ockendeni. 
violettish grey in the basal half, the olive marginal band much narrower between veins 4 and 6; the 3rd discal 
line on the hindwing is finer, more uniform, less dentate. South-Eastern Peru, 6000 ft. 
P. sulpliurea Rothsch. Wings shaped as in eurycles, but somewhat narrower; much lighter, hindwing sulphurca. 
lemon-coloured; the forewing lacks the large costal spots and the subbasal inner-marginal spots; discal lines also 
dentate on vein 5; feebly tinged with reddish pink in the basal half; the double marginal band is much narrower 
between 6 and 4 than in eurycles. The 2nd and 3rd lines on the hindwing are fine, the 3rd curved as in euryalus. 
Venezuela. 
P„ astygorsus Bsd. (96 a). Very similar to goeldii ; forewing above without a stigma; the first line on the asiygonus. 
hindwing is S-shaped, much less curved than in goeldii, and nearer to the base, the 2nd is very fine or absent 
altogether, the 3rd regularly dentate. Distal margin of hindwing more convex. The marginal band on the fore¬ 
wing beneath is very broad, crescentiform. Brazil. 
P. goeldii R. & J . (96 b). Body above yellow-reddish grey, with a silky gloss, thorax marked olive green, goeldii. 
the oblique lateral stripes of the abdomen yellowish olive green, the 8th segment olive green above. Fore wing 
like body, marked olive green, hindwing maize-coloured, with a straighter distal margin. Eorewing with a large 
discal spot. Peru. — andicus Gehlen has broader forewings of a darker ground-colour, with a still larger andicus. 
stigma, hindwing deeper orange with a broader red-brown submarginal band. West Colombia. 
P. strigilis L. (96 b) is a very widely distributed and common species. Fore wing mostly with a rather strigilis. 
uniform silky gloss, olive brownish, sometimes more yellow, sometimes more brown, finely marked, with a small 
discal dot. Hindwinp- coppery orange, with 3 fine discal lines, the 1st and 2nd united at the inner margin, striated 
in tan-colour beneath, sometimes also above so densely that the hindwing turns rusty brown and the lines are 
almost covered by it; this is: — ab. rubripennis Btlr. The larva is very variable, green, with or without yellow rubri- 
granulation, or claret-coloured, the former with light yellow oblique stripes, the latter with darker red ones, often pennis. 
with dark spots before them. It lives on Caju (Anacardiaceae). Mexico to South Brazil, Cuba; West Indies. 
P. carter! R. & J. resembles strigilis, but it is distinctly separated by the absence of the sub marginal cartcri. 
line on the forewing, and the oblique lateral lines on the abdomen are also absent or very indistinct. Fore wing 
broader, the indentation below the apex much shallower; the disc only shows one transverse line starting at the 
olive costal-marginal spot of the cell; only the extreme margin is purple brown. Hindwing as in ab. rubripennis 
with traces of 2 discal lines, the median line being absent; the brown marginal band is feebly developed. Probably 
only an insular race of the preceding species from the Bahamas and Florida. 
19. Genus: Amplypterus Hbn. 
Separated from the preceding genus by somewhat longer palpi which form an obtuse angle with the 
frons; antennae longer. The lobate angle on the forewing projects farther below the apex. Otherwise almost 
the same. 
Type: A. gannascus Stoll. 
