188 



Annals of the South African Museum. 



origin aud at the fork of Rs a faint brownish spot. At the fork of 

 If a hyaline, whitish spot. Blackish bristles on the margins of the 

 wings at their base. 



Length of forewing 19-21 mm. ; that of hindwing 17-19 mm. 



FID. 1. Bittacii* .s..'/;/si, $ . For*-- and hindwing. 



I have seen only two specimens (males) of this very rare species. 

 In the Seli/niim Collection, Bruxelles, is found one specimen (type- 

 specimen), labelled Port Natal in the handwriting of H. A. Hagen. 





FIG. 2. Bittacus selysi, $ . Anal appendages (seen from side). 



The other specimen belongs to the South African Museum and was 

 collected at Du.i-l>n, July, 1913 (W. Hni/jm-f/i, leg.). The latter 

 specimen is the smaller. 



It is a very distinct species, easily recognisable by the colour, the 

 shape and the neivature of the wings, but especially by the peculiar 

 shape of the anal appendages of the male. 



