Dr. A. G. Butler on ncic Pierine Butterfics. 3G7 



upper surface ; all llic pale iiiarkinf,^s are, however, clearer, 

 more saiuly ytUowisli, excc])tiiig tlioHi; on the outer niari^in, 

 which are white ; those towarcl.s the base arc extenddl in a 

 difliised manner towards the base; the sjjots crossing the 

 dis^k of secondaries arc acutely hastate, diffused externally. 

 On the under surface the colourinji^ and pattern more nearly 

 approach those of C. philothea^ but all the light areas are 

 wider and more sharply defined; the general colouring of 

 the piimaries is clear buff, that of the secondaries ]);>arl-wiiite, 

 washed with sul|)hur-ycllow on the inner half of tiie discal 

 and marginal white markings, and here and there over the 

 basal area much as in the secondaries of C. manco ; the apical 

 area and marginal spots of the primaries are also similarly 

 tinted. 



Expanse of wings 4G-52 millim. 



Ecuador [Buckley). Two males, coll. Ilewitson. 



From all its near allies this species may be distinguished 

 by its clearer brighter colouring both above and below, by 

 the sharp definition of the under-surface markings, by the 

 much wider and less crescent-shaped disco-submarginal spot* 

 across the under surface of the primaries and the wider corre- 

 sponding belt of markings across the secondaries. Ilewitson 

 conlbunded this species with C. modesta. 



2. Catasticta cinerea, sp. n. 



Primaries above ash-grey, with the veins and costal margin 

 broadly black ; outer fourth of the wings occu])ied by a broad 

 black border, crossed by a series of whitish-grey spots ; a 

 marginal series of minute white dots : secondaries with the 

 basal half ash-grey irrorated with black ; outer half black, 

 crossed by a series of whitish-grey spots ; a marginal series 

 of small sulphur-yellow spots. Body blackish ; palpi with 

 two lateral white lines ; collar with a small yellow spot on 

 each side. Under surface nearly resembling that of C. uri- 

 ccechece, but the grey areas more slate-coloured, the yellow 

 markings deeper in tint, all the pale markings more sharply 

 defined and those crossing the primaries broader. 



Expanse of wings 65 millim. 



Locality unfortunately not preserved. One male, coll. 

 Hewitson. 



This very fine species and the two following were con- 

 founded by Hewitson with C. uri'cccchece ; the present species 

 is, however, in some respects nearer to G. semiramiH and 

 amastris. 



