816 
OXYTENLS. By Dr. M. Dratidt. 
lactucinci. A. lactucina Cr. (= lactucinaria Him.) (121 b) is mostly of a yellowish or Isabel-coloured tinge, rarely 
all white, at once separable from all the other species by the more or less extensive brownish speckles and by 
the fine undulately notched double postdiscal lines. Larva green with a small black ocellus on each side of the 
3rd segment, both connected by a brown streak; anal segment and horn brown, the latter with a white line 
running down; it lives on Ourouparia guianensis, Venezuela, Guiana, Amazons, Matto Grosso, Ecuador, 
Bolivia, Paraguay. 
hucldeyi. A. buckleyi Drc. (121 b) is the largest species with creamy wings, a characteristic marking, the ante- 
median band of the forewing being entirely absent. The nomenclatural form from Colombia, Peru, Bolivia, 
Guiana, and the Central Amazons exhibits a fine submarginal line beneath, which may be entirely absent on 
; paraensis . the hindwing, whereas in paraensis Jord., from the lower Amazons (Para), it is almost 3 mm broad, especially 
in the middle. 
2. Genus : €>xytenis Hbn. 
Anatomical structure almost the same as that of the preceding genus, but the wings are either entire 
(in the 9$ invariably so), or with dents or lobes at the distal margin, occasionally also with a short caudiform 
projection, but never at vein 5, but always on 6. The species, particularly the $$, resemble the Geometrid genus 
Oxydia in their colouring and scheme of markings; the sexual dimorphism is mostly very distinct, both sexes 
exhibit a small heap of erect scales at the lower cell-end. Neuration almost the same as in Asthenidia, though the 
short cell is somewhat broader. The 3rd segment of the larva is expanded on each side into a broad lobe 
extending forward and downward; the flexible caudal horn is bent S-like. The numerous species are partly 
so very similar that they can only be distinguished by the genitals. 
Type: modestia Cr. 
modesiia. 0* modestia Cr. (= honesta Cr., bimaculatus Down., attacina Wkr., lonomica Drc.) (121 c) is the most 
common and widely distributed species. Wings entire, only the apex of the forewing slightly falciform. Colouring 
and marking extremely variable, reddish or more yellowish brown, especially the C<5 with a more or less intense 
lilac grey tinge, more distinctly marked or also not marked at all, mostly with a line extending from the apex 
of the fore wing to the centre of the inner margin on the hindwing, behind it especially on the hindwing a series 
of lighter crescents; blackish clouds of variable intensity behind and before the line. The larva is green, with 
yellow and white rings around the black ocelli; a large white, brown-spotted saddle-spot in the centre of the 
dorsum, and a purple brown spot before the blackish-brown horn. Hitherto observed from Guatemala to 
Bolivia and South-Eastern Brazil. 
aTbilunu- 0. albilunulata Sells. (121 c). Ochreous or chestnut brown, the $ darker cinnamon-brown, marked like 
Mu. mo destia-, a broad blackish nebulous stripe proximally to the oblique line, a series of fine white crescents behind 
it; a black fine crescentiform line on the hindwing is more remote from the oblique line and not filled with 
whitish. West Ecuador, Panama. 
mirabilis. 0. mirabilis Cr. (121 c). Forewing dentate, with a lobate projection above the centre; loamy brown 
or red-brown, with an oblique line from the apex to the inner margin of the hindwing, but always remaining 
near the margin on the fore wing; more or less covered with blackish clouds; a fine blackish line distally bordered 
with whitish is behind the oblique line. Disc of hindwing more or less tinged whitish, in the centre with a fine 
darker line forming high arches analwards, which are distally bordered with whitish; small black spots behind 
it. Guiana. 
sobrina. 0. sobrina Jord. is externally almost exactly like mirabilis, but below the apex of the hindwing there 
is a slight concavity; the disc of the forewing exhibits still larger blackish clouds. The species can only be 
discriminated by the genital apparatus: the lobes of the 8tli sternit are narrower than in mirabilis, still narrower 
towards the apex. It may be a geographical form of mirabilis from Peru. 
naemia. 0. naemia Drc. (121 d) is likewise difficult to separate from mirabilis, but there are 2 low incisions 
below the apex of the hindwing. By the genital apparatus it is to be distinguished: the lobes of the anal tergit 
are shorter than in mirabilis. The commonest and most widely distributed species from Costa Rica to Paraguay. 
Several geographical forms: the nomenclatural type from Peru, Ecuador, and the Amazons; the apical append- 
aravaca. age of the penis-cover forms a frontally bent hook with a broad flat point. — In aravaca Jord., from Venezuela 
ore da. and Guiana, the apical appendage of the penis-cover is compressed, and in the northernmost form — orecta 
Jord. (121 d), from Costa Rica, Panama, and Colombia, it is bent obliquely analward and laterally, more or less 
twirled, with a dentate posterior end. The black oblique line is mostly very distinct and stout in the latter form. 
