LANGIA; PARUM; CYPA. By B. Gehlen. 
143 
postmedian lines is more densely filled with brown; the underside of wings is marked with brighter con¬ 
trasts; all the lines of hind wings end at the anal angle and are not parallel to one another, in contrast to 
complacens. A sixth subspecies of gaschkewiischi, fortis Jord. occurs in S. W. China, but does not extend 
into palaearctic territory; it is very like g. irata J. 6a K. 
M. cristafa Btlr. (Vol. 2, p. 241, pi. 42 e). — Ova ivory coloured, relatively large. — Larva like that of crisiata. 
M. dyras (Vol. 2, pi. 42 e), but the wide white subdorsal stripe on the head is missing. — Pupa dull, almost 
no gloss, somewhat sleeker than that of dyras ; cremaster large and bold, rough. — M. cristata occurs in south 
China in slightly varying forms, viz: the winter form /. vern. ochrea Mell and in summer form /. aest. jo- 
deides Mell (Vol. 10, p. 538). 
M. dyras Wkr. (Vol. 2, p. 241, pi. 42 e). Ova pale ivory colour with dull gloss, very large (2,8 : 2,0 mm), dyras. 
top rather flat and easily recognisable from other Sphingidae ova. — Larva varies in colour, it occurs occa¬ 
sionally in yellow to orange colouration (actually however only such found on Biittneria) and then has rusty 
red oblique stripes. On the other hand those found on Pterospermum, which has a white underside to its 
leaves, are occasionally white-green! — Pupa dark brown, slightly glossy, cremaster spines grown together. 
— The moth is much attracted to light. Vide also Vol. 10, p. 539. 
M. sp&rchius Men. (Vol. 2, p. 241, pi. 38 a and Vol. 10, p. 539). — subsp. ussurieiisis 0. B.-H. Contrary ussurien- 
to its common occurrence in Japan, sperchius is rare in the Amur region; it forms here the above subspecies, 8 
which is smaller than the main type form (92—96 mm expanse). Porewings paler, outwardly almost white; 
hind wings are paler pinky brown. On underside the difference in colour is more marked: costa of forewings 
and apex almost white, hindwings similarly except for a brown anal spot. — ab. ochracea 0. B.-H. is an aber- ochracea. 
ration of same with ochreous yellow ground colour. — In the south of China a further subspecies handelii 
Mell occurs; in regard to same see Vol. 10, p. 539. 
13. Genus: JLangin Mr. 
L. zenzeroides Mr. (Vol. 2, p. 242). Ova relatively small, yellow-green, glossy like porcelain. — Pupa zenzeroi- 
is about double as stout, as other Sphingidae pupae of the same length; the tergites stretching towards the 
dorsum like wide plump cuneiform bulges; colour inky grey or dark blue grey; lustreless, rigid and almost im¬ 
movable; smeared with earthy grey and thus resembling a clump of earth or a stone, but not like a live 
insect (Mell); it has a greater weight than any other known Sphingidae pupae, a weighed 22 g (roughly 
8 oz) on the day of pupation. — Langia have only one brood. Duration of pupal stage abt. 10 months (from 
May, June to the following February, March). — When at rest the moths have their wings very obliquely 
downwards, the abdomen is curved upwards in a falcate attitude. After emerging from the pupa, until com¬ 
plete development of the \vings a period of abt. 3 hours elapses! In south China the subsp. nina Mell. (Vol. 10, 
p. 540) occurs. 
14. Genus: l*ar«iin R.dhJ. 
P. colligafa Wkr. (Vol. 2, p. 242, pi. 38 b and Vol. 10, p. 541). Ova small, whitish with faint lustre, colligata. 
Larva green, rarely whitish green, pale, yellow or varying yellow; head round with 2 pairs of white stripes; 
spiracles sky blue with white longitudinal intersecting streak; segments with white conical belt of humps; 
7 oblique stripes; horn straight, granulose, medium length, tip bifurcated. — Pupa dull grey-black, almost 
without lustre and very immovable; cremaster large with 2 bold pointed straight projections, which bear small 
lateral projecting spines. 
15. Genus: €ypa Wkr. 
This indo-australian Genus was not discovered on palaearctic territory until 1926; only one species 
was known and that was from India. Today 4 species are known, of which the one occurs in Masuri, 
N. W. Himalaya touching our territory there. Mell has also found one species in south China. — The 
characteristics of the Genus, which was dealt with in Vol. 10, p. 541, are as follows: Proboscis very short 
and weakly; pilifer short with brush of long hairs; head small and with tuft; eyes small and ciliated; palpi 
small, not porrect. Antennae with long end segment that bears a number of spines at or near the tip, the 
3 anterior segments small, short, rhomboidal when viewed from the side, closely compressed in cilia long, 
cylindrical in the $. Outer edge of forewings with irregular lobes, or at all events not straight; 2nd radialis 
of hindwings below centre of cell, 2nd subcostal nervure on long stalk with 1st radialis, 2nd and 3rd radialis 
straight; upper angle of cell 90 °, lower angle obtuse; costa of hindwings straight. 
C. palletis -Jord. has 2 subspecies of which the one occurs in Sikkim to Assam, the other in N. W. pallens. 
India: pallens -Jord. (Vol. 10, p. 592) from Masuri, N. W. Himalaya. Probably the largest Cypa species. Length 
of forewings 34 mm in $, with 13,5 mm width. Body and basal half of wings grey-brown with faint rosy 
hue, outer half rather a pale sepia colouration. Fore wings with dark stigma, beyond same a diffuse dark 
