LEPIDOPTERA HETEROCERA. 1043 



half or one-third of its length heyond the hind wings. Legs rather 

 slender ; femora and tibiae with long hairs ; hind tibiae with four 

 moderately long spurs. Wings rather narrow. Fore wings straight 

 along the costa, hardly acuminated at the tips, oblique along the 

 exterior border; interior angle much rounded ; discal areolet inter- 

 sected by a distinct forked vein ; second inferior vein further from 

 the third than from the first; third about twice further from the 

 fourth than from the second. 



1. Kethona strigosa. 



Mas. Cana ; palpi supra nigricantes ; thorax fascia arcuata 

 vittisque duabus nigris ; abdomen alas posticas dimidio 

 superans ; pedes antici nigro varii ; tarsi nigro fasciati ; alee, 

 anticce nigro strigatce. 



Male. Hoary. Palpi blackish above. Antennas black, 

 whitish towards the base. Thorax with a slender curved black 

 band, which is connected on each side with a black stripe. Abdo- 

 men extending for half its length beyond the hind wings. Tarsi 

 with black bands. Fore femora and fore tibiae partly black. Fore 

 wings with black streaks in the areolets. Length of the body 

 8 lines ; of the wings 16 lines. 



a. South Africa. Presented by Dr. A. Smith. 



2. Rethona albicans. 



Mas. Alba ; thorax nigro fasciatus ; abdomen albidum, alas 

 posticas triente superans ; alee anticce fusco conspersce, strigis- 

 que plunmis arcuatis transversis nigris. 



Male. White. Head partly clothed with black hairs. An- 

 tennae with black branches. Thorax with a slender black band in 

 11 front. Abdomen whitish, extending for one-third of its length 

 * beyond the hind wings. Fore wings with numerous brown flecks 

 M and with many short curved transverse black streaks. Length of 

 the uody 5 lines ; of the wings 12 lines. 



Var. j3. Fore wings with fewer flecks and streaks, except 

 towards the tips, where there are two curved bands, the inner one 

 black, the outer one brown and more diffuse. Hind wings with 

 v numerous brown flecks. 



, a, b. Caffraria. From M. Becker's collection. 



