59 



Above, all the wings white, very slightly tinted with yellowish 

 at the base ; anterior wings with the costa naiTOwly black ; the outer 

 margin with a broad black border, dentate internally, broadest at the 

 apex. Posterior wings with a series of seven round black dots on 

 the margin. 



Below, pale cream-colour or white, slightly tinged with yellow ; 

 palest on the disc of the anterior wings ; the base and costa of the 

 anterior and the costa of posterior wings yellow ; apex and outer 

 margin of anterior wings with a series of nine black dots, of which 

 the first to the sixth are minute, the seventh larger and double, the 

 eighth and ninth larger than any except the seventh. Posterior wing3 

 with a marginai series of seven black dots : the first, second and 

 third very minute, fourth, fifth and sixth progressively larger, seventh 

 small. 



Head, thorax and abdomen black, sprinkled especially below with 

 white scales. Antennse black, annulated with white. 



In the collection of the Zoological Society. 



This species is closely allied to P. Eudoxia, but diflFers in wanting 

 the bright orange patch at the base of the anterior wings, and in the 

 form and number of the dots on the posterior wings, as well as in 

 the colour of the under surface, which is pure white with a silvery 

 lustre in the malęs of that species. 



PiERis Matuta. Pi. alis omnibus supra albis, apice anticarum nigro ; 

 margine posticarum nigro punctato ; suhtiis albidis basi anticarum 

 costaque posticarum luteis. Exp. alar. 2įunc. vel 63 millim. 



Hab. Fernando Po. 



"VVings above white, the anterior with the apex and outer margin 

 as far as the third median nervule irregularly black ; a black spot 

 on the margin above the first and second median nervule. Posterior 

 ■vvings ■with a slender cuneiform dot at the extremity of each nervule. 

 Below, anterior ■vvhite, the costa itself very narrowly black, the base 

 marked with a broad luteous patch. Posterior wings very pale 

 cream-colour, with slight pearly reflections, the costa at the base 

 luteous. Extremities of the nervules slightly fuscous. Head and 

 thorax black, clothed with white hairs. Abdomen black, covered 

 with white scales. Antennae black, annulated ^vith ■white. 



Genus Aterica. 



Ateuica Barče. At. alis omnibus supra ceneo-nigris, marginibus 

 externis fuscis, subtiis ockraceis, fascia communi transversa, plaga 

 discoidali anticarum, strigis undatis maculisgue brunneis. Exp. 

 alar. 2^ unc. vel 55 mill. 

 Hab. Sierra Leone. 



Above, all the wings aeneo-fuscous, with green and bluish reflec- 

 tions ; the outer margin of the anterior broadly fuscous at the apex, 

 less so at the anai angle ; a slight fuscous cloud at the end of the 

 cell and another much larger beyond it. Posterior wings with the 

 costal and abdominal margins and the outer angle broadly fuscous ; 

 outer margin, except at the angle, narrowly so. Abdominal fold 

 No. CLXXI1I. — Proceedings of the Zool. Soc. 



