Lepidoptera from Southern Africa. 401 



the middle of the inner margin ; secondaries with the apical 

 area tinted with cupreous ; costal margin greyish ; anal tuft 

 of abdomen greyish in the centre ; central stem of antennae 

 sordid whitish ; wings and body below dull sepia-brown. 

 Expanse of wings 10 lines. 

 Natal. 



Mr. Burrows has requested me to name this after a gentle- 

 man who lent him a box to secure the specimen, which must 

 otherwise have been lost. 



Family 12. Notodontidae. 



Genus 45. Derrioides, gen. nov. 



Genus gracile : an tennis elongatis, late pectinatis ; capite modice 

 parvo, oculis exstantibus ; palpis brevibus crassis ; thorace robusto ; 

 abdomine tenui, gradatim attenuato ; pedibus modice crassis, tarsia 

 tenuibus ; tibiis posterioribus spinosis ; alis amplis, marginibus 

 externis leviter undatis, margine costali anticarum paululum 

 excavato ; venis discocellularibus transversis arcuatis. Generis 

 typus D. hypenissa, n. sp. 



60. Derrioides hypenissa, n. sp. 



Rosy madder-brown : primaries with a broad oblique band 

 of darker colour beginning at basal two fifths of inner margin, 

 its outer edge running to apex, its inner edge to median ner- 

 vure, whence it turns inwards at an abrupt angle to costa, the 

 edge is blackish, bordered externally by a whitish line ; a 

 blackish dot on upper discocellular ; outer margin dusky : 

 secondaries with a central transverse, waved, whitish-edged 

 blackish line : head dull brown, with a whitish transverse 

 frontal line ; collar and palpi dull red ; antennas white, with 

 testaceous pectinations : thorax red-brown ; teguke large, 

 hairy, dark brown : abdomen rosy madder-brown, with cupre- 

 ous reflections. Wings below pale rosy brown ; a dusky spot 

 on discocellulars ; a common, waved, pale-edged, dusky central 

 line ; secondaries with abdominal margin greyish : body below 

 pale rosy brown, front of pectus deep dull red ; tibise and tarsi 

 sordid whitish. Expanse of wings 1 inch 2 lines. 



Natal. 



This is a remarkable genus, allied to Paravetta of Moore. 



Family 13. Bombycidae. 

 Genus 46. Lasiocampa, Schrank. 



61. Lasiocampa rudis <$ , Walker. 

 Natal. 



