(161) 



Description of a N'ew Species of Attacus : by Arthui: G. 

 Butler, F.L.S., &c. 



Attacus Atharinus, n. sp. 



$ Allied to A. bauhiniai fi-om Senegal, but much larger, the 

 wings much less falcate and broader ; the ocellated spots more 

 rounded, not touching the discal white band ; the submarginal 

 chain-band uniform in colour ; the white patch on internal area 

 of primaries restricted, and forming a sub-basal quadrate patch ; 

 wings above plum-colour irrorated with white, especially over 

 the basal two-thirds, the latter bounded by a white band, bordered 

 Avithin with chocolate brown, strongly arched on each wing, 

 and widening from the costal to the inner margins ; a large 

 central rounded hyaline patch on each Aving, bordered with 

 white, sordid sulphur yellow and black ; discal area rather 

 brighter than the remainder of the ground-colour, excepting 

 near apex of primaries where it becomes pearly grey ; an irregular 

 submarginal clay-coloured apical patch bordered internally by a 

 carmine and white undulated line, the latter terminating in a 

 large oval black spot irrorated at its internal or smaller end 

 with white ; outer border broadly testaceous, interrupted inter- 

 nally by ten or eleven browm-edged sordid testaceous elliptical 

 spots in couples ; secondaries with the outer b(jrder undulated 

 internally, intersected by a lunulate brown line, above the siniiations 

 of which is a series of elliptical blackish spots ; basal area (corres- 

 ponding with a quadrate patch on internal area of primaries) 

 snow white ; head and thorax plum-colour, varied mth greyish 

 hairs ; palpi, antennae and legs olive brown, sides of meso- and 

 meta-thorax below white ; abdomen above and below snow- 

 Avhite, banded with red-brown ; wings below much more densely 

 irrorated with white ; interno-basal area of primaries, and base 

 of costal area of secondaries snow-white, otherwise as above ; 

 expanse of wings 5 inches, 1 hne, 



Atbara, Abyssinia. 



