64 Zoological Society. 



This species is closely allied to P. Eudoxia, but differs 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 males of that species. 



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

 margine posticarum nigro punctato ; subtus albidis basi anticarum 

 costaque posticarum luteis. Exp. alar. 1\ unc. vel 63 millim. 



Hab. Fernando Po. 



Wings 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 

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

 Below, anterior white, 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 with white. 



Genus Aterica. 



Aterica Barce. At. alis omnibus supra ceneo-nigris, marginibus 

 extet^nisfuscis, subtus ochraceis, fascia communi transversa, plaga 

 discoidali anticarum, strigis undatis maculisque brunneis. Exp. 

 alar. 2 J unc. vel 55 mill. 

 Hab. Sierra Leone. 



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

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

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

 ceil 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 

 thickly lined with long hairs. Cilia fuscous, spotted with whitish. 

 Below ochrey brown, the anterior wings with a minute dark brown 

 spot in the cell close to the base ; a large, irregular, subtriangular, 

 dark brown patch before the middle, divided in the cell by a spot of 

 the ground colour. Beyond the middle is a much- waved abbreviated 

 brown striga, and a similar one extends along the whole outer mar- 

 gin. Between these two strigse is a transverse band of a vinous 

 brown, commencing at the apex and extending to the middle of the 

 inner margin, narrow at its commencement, broad at its termination, 

 where it occupies nearly the whole space from the middle of the 

 wings to the anal angle, and is divided by a faint ochrey cloud. 

 Posterior wings with a broad reddish brown band across the middle, 

 divided by a pale ochreous spot near the costa, beyond which is a 

 paler brown cloud. Near the margin is a much- waved brown striga, 

 and the outer angle is brown. Near the base is a somewhat reni- 

 form brown spot, paler in the centre, and below it a ring of the same 

 colours. 



