Hyalurga urioides Schaus, 1910

Schaus, W. (1910). XIX. Descriptions of new Heterocera from Costa Rica. Annals
and Magazine of Natural History (8) 6 (no. 32): p. 206.

Hyalurga urioides, sp. n.

Palpi black streaked with white. Head and tegulae black spotted with white.
Thorax whitish with a central black line; patagia ochreous, dorsally shaded with
black. Abdomen above dark grey, with a dorsal black line; laterally and below
white with a ventral black band. Legs white streaked with black. Wings white,
semihyaline. Primaries: the margins ochreous, edged inwardly and outwardly with
black; veins black; a black spot at end of cell, which is also reached by a
curved black line from tornus; below the margins are black with an ochreous
streak at base and some ochreous at tornus. Secondaries: the outer margin black,
containing an orange streak from anal angle to vein 4.

Expanse, ♂, 50 mm.

Hab. Tuis, Sixola, Juan Vinas.

Likewise referred to H. uria, Btl., in the 'Biologia.'

Hering, M. (1925). Hyalurga. In: Seitz, A. (ed.), The Macrolepidoptera of the
World, vol. 6, The American Bombyces and Sphinges: p. 449, pl. 65 b (German
edition: Die Gross-Schmetterlinge der Erde 6: 449).

H. urioides Schs. (65 b) resembles uria, but the thorax and abdomen are white
with a narrow black dorsal line, abdomen besides with broad black subdorsal
stripes; patagia red-brown, head and collar black, spotted white. The transverse
band of the forewing is composed of a detached spot on the transverse vein, from
which a thin line extends to the distal margin, behind the 1st cubitus bending
round to the tornus and ending where the distal-marginal band meets the
hind-marginal band. The red band in the hindwing is narrowed, its veins and
costa are white. Panama, Venezuela.

The uria paragraph it refers to, same work, p. 449, pl. 65 a:

H. uria Btlr. (65 a). Body as in fenestra, only in the abdomen first and last
joint not white. Forewing likewise similar to fenestra, transverse band only
black, in the centre narrower. Hindwing with a red-brown, black-edged distal
margin and black costa. All the veins black. Brazil.

The fenestra paragraph that uria in turn refers to, same work, p. 448, pl. 65 a:

H. fenestra L. (= fenestrigera Hbn., egeon Cr.) (65 a). Head and thorax black,
collar with 2, thorax with 6 white spots. Patagia ochreous-yellow, often edged
with blackish-brown. Abdomen above ochreous-yellow, the first and last segment
white, with a black dorsal line and black subdorsal lines, the lateral lines and
ventrum being white. Wings whitish hyaline, all the margins of the forewing
varying from ochreous to reddish yellow, on both sides narrowly or more broadly
edged with black; a similar transverse band extends across the transverse vein
to the tornus where it bends towards the base. Veins blackish-brown. Hindwing
with white veins and a black, more or less white-filled apex and distal margin.
The transverse band is rarely quite black: -- supposita form. nov. (♀ from
Ucayali in the Berlin Museum), so that the species then resembles sixola Schs.
(65 b), distinguished by the differently coloured abdomen and the broader band
of the hindwing. -- The form amazonica Btlr. has deeper reddish-yellow margins
which are more broadly edged with black, and the distal margin of the hindwing
only shows traces of the white filling. The form occurs with transitions among
the typical form. South America to South Brazil and Peru.