Publ. 25. VII. 1931. 
ATREIDES; SPHINX. By Dr. M. Deaudt. 
857 
longitudinal streak; a light dot at the cell-apex and a black dot above it. Hindwing plainly grey with a 
somewhat darker marginal band. Bolivia. 
N. albescens Clark. Frons grey, thorax dark grey with lighter tegulae. Abdomen light grey above, albescens. 
laterally white with large black spots. Forewing white, a fine dark line proceeds at the inner margin, 5 mm 
from the base, obliquely to the cell, where it is sharply bent round and returns to the base of the costal margin; 
a very faint parallel line in front of it; the dark marginal area is narrower and lighter than in steinbachi, only 
a white dot at the cell-apex. Hindwing monotonously light grey, with dark veins and a distinct dark marginal 
band. From Argentina (La Rioja). 
15. Genus: Atreitles Holl. 
Eyes edged with cilia, proboscis long. Anterior and middle tibiae spined; posterior tibia as long as the 
first tarsal joint, with very long spurs, the longer spur reaching to the end of the first tarsal joint. Only 1 species: 
A. plebeja F. (94 b). Body and forewing brownish-grey with distinct black dentate lines and a very plebeja. 
small lighter, dark-edged discal spot; small black sagittate spots between the black veins of the marginal area; 
fringe speckled light and dark. Hindwing almost entirely black, lighter whitish grey only in the costal-marginal 
portion and in 2 small diffuse spots near the anal angle. Larva green, lighter or also reddish on the dorsum, with 
7 yellow lateral oblique bands bordered with black or red above; skin intensely granulated, horn granulated 
black. It lives on Tecoma. Eastern United States. 
16. Genus: Split Il\ L. 
A large number of partly very closely allied species are combined under this name to-day, part of which 
formed the genus Hyloicus Hbn. Eyes ciliated, anterior tibiae spined. Pulvillus absent. The spines of the middle 
and hind tibiae vary much in number and length in the different species, and they may even be absent. Ab¬ 
domen almost invariably with black and white lateral spots, never yellow. 
S. arthuri Rothsch. (94 b) is easily recognizable by the peculiar reddish olive green colouring of the arthuri. 
anterior body and forewings; with hardly any markings. Metanotum with 2 golden yellow spots. A single <$ 
from La Paz, Bolivia. 
S. maura Burm. (94 b) is quite similar to arthuri, and Rothschild suspects it to be the $ of it, since maura. 
only $$ are known of maura, but the colouring is blackish-grey, whilst the shape and marking of the wings is 
the same in both species; abdomen not so white as in arthuri. Argentina and Espiritu Santo. 
S. aurigufta R. dk J. (94 c) is similar to lugens, but larger, and the anterior body slightly brownish; aurigutta. 
2 golden yellow spots on the metathorax; markings of fore wing not very distinct; some rusty-reddish scales 
before the anterior transverse line below the cell; the white cell-end spot is double, the greyish-white irregular 
submarginal line extends almost parallel to the margin. Bands of hindwing slightly brownish. Peru and Bolivia. 
S. justiciae Wkr. (= anteros Men.) seems to be an extraordinarily rare species the exterior of which justiciae. 
entirely resembles that of the following merops ; it differs from it, however, in the orange border of the abdominal 
margins near the dorsal line and in the genital apparatus. Larva green with 7 reddish violet, posteriorly white- 
edged oblique bands, each of which is continued to the next segment by yellow colour; thoracal rings granulated. 
It lives on Justicia (Acanthaceae). Rio de Janeiro to Buenos Aires. 
S. merops B.sdv. (= lugens Bsdv., justiciae Drc.) (94 c) is at once discernible from justiciae by the absence merops. 
of the two orange subdorsal spots on the abdomen, but it exhibits a rusty yellow tinge above on each side of 
the median line, and the forewing also shows red-brown places; the submarginal line being thickly black in the 
lower two thirds is bordered with yellowish-white distally. Mexico to Ecuador. Although the species is very 
common and widely distributed, yet the larva is not known. 
S. tricolor Clark belongs to the merops-justiciae group, but it has shorter and obtuser wings. Head tricolor. 
and thorax grey, tegulae white, strewn with brown. Abdomen above with a yellow median stripe interrupted 
by slate-blue segmental indentations which are more conspicuous laterally, with black between them; ventral 
side yellow, strewn with brown. The costal and distal margins of the forewing form a right angle at the apex, 
the inner angle being quite round. Forewing grey, marked with black and white, lighter than in merops and 
justiciae, with a subbasal brick-red longitudinal blotch of 7 mm length; a double white stigma bordered with 
black; instead of the black submarginal band there are 3 black, distally white-edged lines here. Hindwing with 
a slate-blue basal area and median band. Dominica, from an altitude of 900 m, the only West Indian represen¬ 
tative of the genus discovered hitherto. 
VI 
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