( 20(1 



large, hirgcr tliaii tlir (■(i>tal [;atcli. Tliu 6 is lln.' most miiroriuly yellow speeies 

 ol' tlie liido-^lalayiui Uxtjumlmhjx \ tiie ? is diiiker tLiui the i. In both sexes the 

 distal siibiiicdiau line crosses M at the bafc of M', the jiortioii of the line within 

 tlie cell being less oblique than in macidij'era, sckaujf'elber(/eri and oliiers, not 

 extending distad to the lower angle of the cell. 



cJ. The eighth sternite of the abdomen is not essentially different from that 

 of A. schauffelbenjvri (PI. XXII. f. 29). The harjie (PI. XXXI. f. 14) has a blnnt, 

 concave distal process (/)c), the mesial ridge {cni) is short, and is produced into 

 a heavy tooth ; the ridge connecting tliis tooth with the distal process {pc) is 

 irregularly dentate. The penis-sheath (PI. XXX. f. 7) bears no armature besides the 

 dorsal ])rocess, which, lieing obli(juely truncate in a ventro-dorsal direction, is 

 sharply pointed. The tenth sternite (PI. XXlll. f. IDJ is very much broader 

 m(;sial!y than in KcriceipenKis and ■•<<-h(niJfrlljer<j('ri, and has, as in these species, 

 no mesial sinus. 



? . Vaginal plate (PI. XV. f. 4j with a higli ridge before the cavity, the ridge 

 deejily sinuate, the sinus widened jiroximaily, the lobes of the ridge thus formed 

 strongly rounded, projecting mesia.d : postvaginal part of plate with the sides 

 oblique, shallowly sinuate, apex rounded. 



Early stages not known. 



IJdb. Japan to North India. 



In the Tring Jluseum 14 cJd", o ? ? from : .lajnui : fSilshiiu. 



liJU. Oxyambulyx liturata (PI. Vlll. f. lo, i). 



*Aiiibiil;/.c(iliinila Butler, I'lvc. Zmd. Sur. Lwal. p. 2b0. n. I.ij! (|H7.o) (hal). ? descr. of larva ;— Mus. 



Bnt.) ; ill., Trwis. Xoul. Soc. Lund. ix. p. 580. n. 5. t. 111. f. -1 (/)• 3 (ii) (1877) ; Kirby, /.c. p. ImC. 



n. 20 (189-J) ; Swinh., Cat. Lq>. lid. Mux. Ox., i. p. •_'.") n. 08 (189-2) (haec spec. '? !). 

 '^Ambiihjx i-hodoptcra Butler, Pine. Zool. Sur. Loiul. p. 2.01. ii. •!;> (187.^) (Darjiling ; — Mus. Brit.) : 



id., Trans. Zuul. Sor. Loud. ix. p. 580. ii. i''. t. Ho. f. 8 ( $ ) (1877) (Darjiling) ; Cot. it Swinh., 



Cat. Moths Lnd. i. p. 23. n. 121 (1887) ; Kirby, I.,:, p. G75. a. 12 (18112). 



(? ? . Easily distinguished from maculijera by the absence of the round subbasal 

 costal patch, which is occasionally indicated in the present species by a longitudinal 

 dash. Abdomen with mesial line which is not dilated to a patch on the eighth 

 tergite of the S . From the continental forms of stibstrii/ilis, with w-hich liturata 

 is easily confounded, it can be distinguished, apart from the diflerent sexual 

 armature, liy the base of the hindwing being less tawny and never black, and by 

 the submarginal line of the forewiug being more })roximal posteriorly. 



Some of the ? ? are as pale as the S $, while others are deeper in tint, and 

 have a more distinct violet-grey gloss on the forewing. 



S. Eighth abdominal sternite bisinuate, being rounded-convex mesially 

 (PI. XXII. f. 2o), the edge of this lobe thickened internally, which gives the edge 

 the appearance of being bent internad. Tenth sternite similar to that of placida. 

 being more deeply sinuate than in snbstriijllis. Harpe (PI. XXXII. f. 1) with an 

 almost vertic'al submtsial process {pm) at the distal end of the submesial ridge ; 

 distal i)rocess pc very broad, spoon-shaj ed. Penis-sheath (PI. XXX. f. 11, ventral 

 view) with two dentate folds, which are unequal in length ; the strongly chitinised 

 dors-al part of tlie sheath prolonged into a short obtuse ])rocess. 



?. Vaginal plate (PI. XV. f. 7) with a very large vaginal cavity ; proximal i)art 

 of jtlate membranaceous, edge of cavity raised to a folded ridge which is mesially 

 sinuate, here less chitinised than laterally ; distal part of plate vouyded, trans- 



