618 HESPEKIID.E. 
nervures straight. Antennoc exactly half the length of the costa of the fore wing, with a 
well-formed club, the tip slightly hooked ; thorax rather sleuder, abdomen very slender. 
" Female differs from the male iu having the wings broader and more rounded, and lacks in the 
type species the patch of androconia on the uppersidc of the fore wing. 
" Type, ' Thanaos ' stu/mata, Moore." {de Niceville, I. c.) 
Aeromachus piceus, sp. nov. (Plate XLI. fig. 16, d .) 
Hale. Fuliginous: fringes pale greyish, chequered with darker at ends of the nervules. The 
male has a narrow oblique patch of black raised scales on primaries. Under surface greyish 
brown : primaries are sprinkled with ochreous along the costal area, and have central and 
submarginal series of whitish spots, extending from costa to first median nervule ; secondaries 
are sprinkled with ochreous, and traversed by two series of whitish spots extending from 
subcostal to submedian veins. 
Expanse 28 millim. 
I have two males wliich were taken at Moupin iu June. 
Closely allied to A. {T.) stigmata, Moore *, from which it differs in not having 
a discal series of pale spots on upper surface of primaries and in the macular 
bauds on under surface of secondaries being differently placed. 
Aeromachus catocyaneus. 
Painpl/ila catocijanea, Mabillo, Ann. Soc. Eiit. France, 187G, p. Iv. 
" Mas alls fuscis, fimbria sordida. Antiois cum striga nigra, brevi, s(iuamis cinereis distincta, a 
cellula usque ad nei'vum simplicem inferiorem, obUqua. Antioae subtus fuscre, cum liaeola 
vix conspieua in cellula et duabus lineis punctorum cferuleorum, altera discali, altera margi- 
nali inferius evanida. Posticfe cum tribus lineis punctorum viridius cseruleorum, una 
interrupta in basi, secunda discali punctorum majorum, tertia marginali, punctis ejus ad 
angulum analem majoribus ; lineae discalis puncta ij-a sunt approximata ut dioi possint fascia 
macularum elongatarum nervis divisarum : pectus et caput pilis olivaceis hirsuta. Pagina 
superiorum P. nasonem refert, at minor ille noster. 
"Thibet, Abb. Arm. David. Mus. Nat." (21abille,l.c.) 
Agrees in general appearance with A. (T) /lali, de Niccville, from Sikkim 
(Jolirn. Asiat. Soc. Beng. 1885, p. 123, pi. ii. fig. 3, <J ), but it differs in having 
the bluish macular bands of under surface more clearly defined and gently 
curved instead of angulated. In a carefully executed hand-coloured drawing 
of the male type of A. catocyaneus, the primaries appear to have a transverse 
dark-coloured patch, but there is no mention of any such mark in the 
description of that insect. Neither is this mark referred to as a character of 
A. kali. 
* Proc. Zool. Soc. Lond. 1878, p. G94. 
