N AX A: CENTRONAXA; OZOLA. By L. B. Prout. 
39 
placed, consequently more central on the hindwing and running on the forewing towards the costal margin 
instead of the apex, but usually becoming obsolete at its anterior extremity. — nigripuncta Hmps. is myripuncla. 
the Indian form, weakly marked with the exception of the transverse line and on the forewing the posterior 
black spot beyond it. — rudis Prout (3 f) from Borneo, is slightly narrower winged, much more heavily > udis. 
irrorated, the forewing with black antemedian spots, anterior black dots and posterior thickening on the oblique 
line, and a darker cell-mark; hindwing with the line obsolete anteriorly. Perhaps a separate species. 
55. Genus: Jfaxa Walk. 
Weakly-built white moths, with minute palpi, pectinate or serrate antennae in both sexes and spurless 
hindtibiae. See, further, Vol. 4. p. 9. Besides China and Japan, the genus inhabits India, Sumatra and 
Borneo. 
N. obliterata Warr. (3f). A rather small and weakly-scaled species with the black spots smaller than obliteratei. 
in the other forms excepting parvipuncta, the sub terminal series not so close to the distal margin as in that. 
Bhotan to Burma, apparently scarce. 
N. textilis. This well-known species, occurs, in two principal races: — parvipuncta Prout (Vol. 4, parvipunc- 
pl. 1 d as textilis), from S. India, has the cell-spot of both wings small, often a more dot; subterminal dots also 
decidedly smaller than in the northern race. — textilis Walk. (= cypraria Guen., lnigeli Feld.) (3 f), from textilis. 
N. India and Burma, has the cell-spots at least as large as in seriaria (Vol. 4, pi. 1 d), generally larger, more 
or less pale-centred. 
N. guttulata IF arr. (3f) may possibly be another race of textilis but has the costal margin and apex guttulata. 
of forewing more strongly rounded; cell-spots similar, all the other spots much larger, longitudinally produced. 
Sumatra, Java, Borneo and the Philippines. 
56. Genus: OaitroiRaxia Prout. 
Differs from Naxa in the presence of the frenulum and in having on the hindtibia a pair of short 
spurs. Three of the species occur in China on the confines of the Palearctic Region and have been dealt 
with in Vol. 4. The fourth is North Indian. 
C. orthostigialis Warr. (5 d). Antennal pectinations of the rather shorter than in the Chinese allies, orthostigia- 
the clot on the median vein of the forewing placed proximally to the origin of the 2nd median branch; 
both wings with some vein-dots developed between the cell-dot and hindmargin. Sikkim and Bhotan. 
57. Genus: €)zola Walk. 
Antenna of o with fascicles of long cilia; legs rather long; hindleg of with a hair-pencil, both sexes 
with one of the proximal pair of spurs wanting. Abdomen rather long and slender. Wings elongate, the fore¬ 
wing acute or falcate, often with the distal margin excised in anterior half; 2nd subcostal vein of forewing 
absent; hindwing with costal vein remote from subcostal, connected by a bar near the base. The early stages 
are scarcely known. The genus is predominantly Indo-Australian, but a few species inhabit Africa and one 
reaches S. Japan. (See vol. 4, p. 10). 
O. sinuicosta is recognizable by having the costal margin of the forewing appreciably concave from 
the end of the cell to a marked convexity near the apex. Two colour-forms are known. — grisescens grisescens. 
Prout (3 d), from Sikkim, is grey. — - sinuicosta Prout , from Assam, is of a more or less warm ochreous sinuicosta. 
brown. 
0. impedita Walk. (= biangulifera Moore) (3d) differs from the preceding in its less sinuous costal- impedita. 
margin, sharper markings and especially in the whiter hindwing, with much larger, more blackish cell-spot. It 
occurs together with sinuicosta but is also known from Borneo. 
0. microniaria Walk. ( = acutata Walk., ? blitearia Walk.) (3d). Smaller; forewing rather broader, microniaria. 
the postmedian line of the forewing bending strongly inwards anteriorly, the black cell-dot not accompanied 
by a dark cloud. Ceylon to Assam; also on the Philippines. — Larva greyish, minutely speckled with black, 
feeding on Premna latifolia. 
0. convergens Warr. Rather paler than microniaria, apex of forewing less acutely produced, ante- convergens. 
median line strongly bent outward in the middle so as to approach the postmedian, which is formed more 
as in impedita. Ceylon, not common. 
