( 812 ) 



with very small vein-ilots, fourth aiul fii'rh lines geminate, not verj- distinct, 

 aeoentnateil by vein-dots, dots of fifth line heaviest on M' and SM-, spot M- 

 correspouding to the upper part of the oblique double spot of pusillus, no subapical 

 costal spot ; distal margin evenly dentate, teeth W and M' not more prominent 

 than the others ; a brownish marginal area as in pusillus, but this area of about 

 the same width between SC'' and R-, not being obviously narrowp<l costad, the 

 brown snbmarginal halfmoon SC^ — StV' of piisillus not marked in the present 



species. Hindwing more elongate than in pusiUiis, anal angle less jirojecting ; 



clayish creamy buff, a pair of discal lines filled in with russet-brown, the first 

 close to cell, even, the second dentate ; a third line abont halfway between first 

 and distal margin, convex from V to M-, then almost straight, slightly dentate 

 on M' and M- (the teeth ])ointing basadj, the line most distant from outer 

 margin at R' ; distal area, outside the pale distal border of the third line, rnsset- 

 brown, with small deeper brown spots on W, M-, SM-. 



I'lif/frsii/e grey, shaded with pinkish russet, costal margin of forewing, basal 

 area and second discal interspace of hindwing pinkish grey, basal area of forewing 

 isabella-colour ; both wings with four lines across disc, second very faint, the 

 others (piite distinct also on forewing, parallel, the first on forewing 4 mm. from 

 cell at 11", on hindwing at lower angle of cell. Harpe broad, short, the obtuse 

 apical i)ortion produced dorsad into a very large tooth. Penis-sheath armed at 

 end with a heavy, somewhat compressed, process, which jirojects sinistro-laterad 

 and is olili([uely rounded at a])ex, but ends in a minute point. 



? and early stages not known. 



Length of forewing : 23 mm. 



Hab. Webi Maki, 1.x. 1900. 



771. Hippotion aurora spec. nov. 



?. Upperside of head and thorax dark olive-brown, witli a consjiicuons ])ale 

 side-stripe ; mesothoracic tegula with a ]>rominent i)ale yellowish middle line ; a 

 ])ale, simple, mesial vitta from pronotnm to end of abdomen, accomj)anied on the 

 latter by a blackish brown line at each side ; abdomen paler than thorax, except at 

 base, speckled with dark (dive dorso-luterally, no black basal side-patch. Underside 

 pinkish cream-colour, faintly speckled witli olive ; second segment of jialpns and 

 sides of breast dark olive. 



AVings, iijrpnsidc. Forewing as in //. eson, much more grey, less clayish ; 



discal lines 1 and 'Z forming a band as in //. cson, but this band continued to the 

 very base, being ]jroximally almost black ; line (5, which is as jirominent from K"-' to 

 apex as in eson, is very thin between U- and hinder margin, and accentuated by dots 



on the veins. Hindwing nearly as in //. osiris, purplish red, deeper coloured than 



in osiris ; tlie black discal area larger, its posterior portion not separated from the 

 anterior jiortion, the red band-like space traversed by black vein-streaks ; the post- 

 discal black band less sh<arply defined than in osiris, tapering behind : the ])alc 

 distal marginal border speckled with black. 



UntlerHidi- almost exactly as in //. celerio ; no red colour and no distinct lines : 

 brown distal marginal band of forewing more distinct tlian in //. osiris, and 

 obvionsly broader than in //. rsori. 



Length of forewing : 3.s mm. 



Jf(il). Diego Snarez, Madagascar. 



