452 Annals of the South African Musetmi. 



sutures of the mesonotum very deep, the latter almost bigibbose ; 

 abdomen short ; anterior wing long, slightly acuminate at apex, 

 hyaline with a very slight pinkish tinge, the sub-costal costules 

 greenish yellow for the whole of the length, no pterostigmatic 

 macule, the reticulation nearly translucent ; hind wings very long, 

 pale greenish yellow, and ending at apex in a long, broad oar-like 

 pinkish dilatation having a half twist. 



In the figure this dilatation had to be shown flat. 



Twice only did I meet with this pretty, delicate-looking insect, 

 and I was not fortunate in the second occasion to capture the 

 specimen. 



Length of body 9 mm. ; expansion of fore wings 42 mm. ; length 

 of hind wing 37 mm. 



Hab. Cape Colony (Koeberg, Cape District), L. P6ringuey. 



Nemopteka dumbkodiana, n. sp. 



3' . Flavescent, but with the upper part of the head, of the 

 thorax, and the whole abdomen very light buff; basal joint of 

 antennas also buff — the other joints are missing ; vertex of head 

 with a conspicuous median tubercle ; no traces of a neck ; meso- 

 notum constricted, short, sparsely setulose laterally, gibbosities of 

 the mesonotum greatly developed; abdomen twice the length of the 

 head and thorax taken together, the segments plainly pubescent ; 

 anterior wings moderately acuminate rounded towards the median 

 part of the apex, hyaline but with the venation, especially the sub- 

 radial nervures, which are set very closely to each other and become 

 united slightly past the middle, somewhat flavescent; no ptero- 

 stigma ; the hind wings are very narrow, very long, and ampliated 

 at about two-thirds of their length into a narrow, oar-blade like 

 process, making half a twist, very little acuminate at apex ; for 

 two-thirds of the length the hind wing is flavescent fuscous, turns 

 thence to whitish for one-sixth of the length, the dilated reniform 

 part is plainly fuscous for two-thirds of its length, but has an 

 elongated lacteous patch along the upper edge, the third hind part 

 is lacteous, but the very apex is lightly infuscate. 



Length 15| mm. ; expansion of fore wings 48 mm. ; length of hind 

 wing 54 mm. 



Not unlike in general appearance, and especially in the shape of 

 the hind wings, N. africana, but the fore wings are more rounded 

 in the anterior apical part and less distinctly acuminate on this 

 account, the two sub-radial nervures become united slightly past the 

 middle instead of at about fom'-fifths of the length as in the N. 



