6 
XENOGENES; DEBOS; THEOXENA; SAMANA. By L. B. Prout. 
chrysoplaca. 
euslrotiodes. 
iraius. 
scissor ia. 
f alcatell a. 
3. Genus: Xenogeiies Meyr. 
Small moths, differing from the preceding genera in the smooth-scaled face, less hairy palpus and some 
slight neurational characters. The two species are very different in aspect and colouring, both very rare and 
insufficiently known. Confined to Australia. 
X. chrysoplaca Meyr. Expanse about 24 mm. Forewing rather elongate-triangular, costal margin nearly 
straight, distal margin not very oblique; blackish with'yellow markings, consisting of costal and terminal streaks, 
neither of which reaches the apex, a pyramidal antemedian blotch on hindmargin and a moderate postmedian 
band. Hindwing blackish, with an orange patch in basal half and a narrow, incomplete subterminal band. Queensland. 
X. eustrotiodes Front (la) Smaller and more glossy winged, recalling the texture of Eustrotia and other 
Noctuids. Forewing creamy white, base of costa blotched with brown; lines velvety black, the first broken 
(except at its extremities) into vein-spots, the second arising from a thick costal spot, strongly curved inwards 
between the 3rd radial and the submedian fold; a brown or plumbeous band distally of the first line, a blotch 
between cell and second line, subterminal blotches on costal and hind margins. Hindwing yellow, with a termi¬ 
nal dark band (sometimes indistinct), divided by a pale yellowish line. West-Australia. 
4. Genus: Debos Swinh. 
An extremely anomalous genus, originally described in the Zygaenidae , stated by Hampson (Faun. Ind. 
Moths Vol. 1, p. 289) to be „probably a Tinea 11 , but later referred by Meyrick to the Oenochrominae. An¬ 
tenna rather short, unipectinate. Tongue wanting or rudimentary. Legs rather short and stout, hindtibia with 
all spurs. Wings long and narrow, smoothscaled. Forewing unique among the Geometridae is having the 2nd 
and 3rd subcostals on a rather long stalk quite apart from the stalk of the 4th and 5th. Hindwing with the 
2nd radial weak. Until recently only a single species was known, but a second has been added from Portu¬ 
guese East Africa. 
D. iratus Swinh. (1 a). Head mostly orange-ochreous. Body beneath also tinged with ochreous, but 
paler. Body above and wings uniform bronzy brown, glossy. $ unknown. India: Poona (the type specimen), 
Nilgiris, Bhotan; only 3 specimens yet known to me. 
5. Genus: Tlteoxena Meyr. 
Slenderly built. Face smooth, palpus of moderate length, antenna of with rather long fascicles of cilia. 
Hindleg slender with 4 spurs. Wings glossy; forewing with apex minutely falcate, the 1st and 2nd subcostal 
veins anastomosing to form a narrow areole, the 2nd afterwards anastomosing strongly with the 3rd—4th. Hind¬ 
wing rather narrow, with costal margin relatively long, costal vein approximated to subcostal to near end of 
cell, 2nd subcostal shortly stalked with 1st radial. Only one species known. 
T. scissaria Gnen. (1 a) Recognizable at once by the pale forewing and white hindwing, the former 
with a single curved dark streak arising from hindmargin close to the base and running in the direction of the 
apex, which it does not quite reach, the latter only with a cell-dot and terminal dots. New Zealand in January, 
frequenting the plains and apparently local. 
6. Genus: Samaiia Walk. 
Similar in shape and texture to Theoxena. Venation also essentially the same, except that the 2nd 
radial of both wings arises well before the middle of the discocellulars. Distinguished chiefly by the very long 
palpus and by having a projecting cone of scales from the face. Confined to New Zealand. 
S. falcatella Walk. (1 a). Larger than Theoxena scissaria, hindwing similar, forewing more tinged with 
yellow and bearing two oblique streaks, one from the base, almost longitudinal, the other from near the middle 
of hindmargin to near apex; in addition, a longitudinal dash at extremity of cell. Has been taken near Dune¬ 
din, but apparently not common. 
