some South -African Insects. 179 



Head at the anterior margin concave, with a distinct 

 central impression. Pronotum narrowest at anterior margin, 

 where it is transversely striate, gradually widening posteriorly, 

 where it is obscurely angulated at lateral margins ; base 

 transversely striate, remainder of disk thickly and coarsely 

 punctate. Elytra thickly and somewhat coarsely punctate, 

 each elytron with two discal, longitudinal, slightly raised 

 lines. 



Long. 21 millim. 



Hob. Delagoa Bay (Junod). 



In one specimen the elytra are more or less cyaneous. 



LEPIDOPTERA. 



Hetekoceka. 



Earn. Sphingidae. 



Polyptychic consanguineus, sp. n. 



Body and legs fawn-coloured ; head and pronotum with a 

 central longitudinal smoky-brown fascia. 



Anterior wings fawn-coloured, crossed by two narrow 

 linear brown fascise — the first about one fourth from base, the 

 second longest and more oblique beyond cell ; between these 

 fascia? are two waved paler ones, placed somewhat close 

 together, and two lines, giving the appearance of a sub- 

 quadrate spot, at end of cell ; some indistinct waved brown 

 markings cross apical area of wing, and two small brown 

 spots placed one above the other near apex of inner margin. 

 Posterior wings fulvous, with two transverse brown linear 

 markings just above inner angle at posterior margin, and with 

 a small spot of the same colour beneath them. Wino-s 

 beneath with two indistinct transverse fascia?, one beyond 

 cells, the other, more waved, near outer margins. 



Exp. wings 60 millim. 



Hob. Transvaal, Lydenburg District. 



A near and very close ally of this species is to be found in 

 the P. Janhowskii, Oberth., described from the island of 

 Askold, off the north-east coast of Asia. 



Polyp>tychus africanus, sp. n. 



Body and legs fawn-coloured ; front of head, lateral and 

 posterior margins of pronotum dull olivaceous. 



Anterior wings to end of cell and middle median nervule 

 saffron-coloured, beyond this pale olivaceous; two small 

 costal spots at base, a large longitudinal spot at base of inner 



