4 8 A. WATSON 



Description. <J. Labrum globose, proboscis vestigial ; palp extending short distance above 

 labrum ; antenna bipectinate from base of flagellum to apex, A.P.R. 14 to 23. 



Thorax as for ground-colour of fore wings dorsally, much paler ventrally. Mid and hind tibia 

 each with one pair of terminal tibial spurs. 



Costa of fore wing weakly or moderately convex ; apex a right-angle or weakly falcate ; 

 outer margin slightly convex in most species but nearly straight in bimaculata. Outer margin of 

 hind wing convex except in natalensis in which the margin is angulate and weakly produced at 

 M 3 . Venation of fore wing as in Text-fig. 74 ; i? 2 + 3 + 4 on common stalk, i? 5 closely approxi- 

 mates to i? 4 at point shortly after i? 4 branches from R 3 + 4 . In hind wing Sc + R 1 closely approxi- 

 mates to Rs for short distance distal to end of cell. Upper surface of both wings one of many 

 shades of brown, buff or grey, usually only lightly speckled with black or dark brown. Costa of 

 fore wing with dark marking near apex, second marking short distance proximal to first, and 

 third just proximal to middle of costa ; brown or black spot close to cell between Cw lb and 

 ■zA (invariably present in natalensis, sometimes present in remaining species) ; dark discocellular 

 spot ; trace of antemedial fascia ; well marked, oblique postmedial fascia ; weakly marked 

 subterminal fascia. Hind wing sometimes with trace of antemedial fascia ; well marked medial 

 fascia, continuous with postmedial fascia of fore wing except in natalensis ; weakly marked 

 subterminal fascia. Under surface of both wings light brown, buff, orange or yellow, lightly and 

 variably speckled with a darker colour. Fore wing with dark discocellular spot and well marked 

 postmedial fascia positioned slightly proximal to corresponding fascia of upper surface. Hind 

 wing with dark discocellular spot ; trace of postmedial fascia, placed distal to medial fascia of 

 upper surface, strongly convex distally ; faintly marked subterminal markings in some specimens 

 best developed in natalensis. (See Plates 5 and 6.) 



Abdomen as for ground-colour of wings dorsally, very pale laterally, usually pinkish or 

 yellowish buff ventrally. 



o* genitalia (see labelled Text-fig. 106) : posterior margin of tegumen strongly concave ; 

 saccus variously shaped ; valve setose, with or without processes ; setose uncus divided 

 medially, each half with posteromedial spine or bulge ; gnathus with strongly developed lateral 

 arms and pair of posteromedial processes ; aedeagus variously shaped and ornamented ; apo- 

 demes of eighth abdominal sternum short, posterior margin of sternum emarginate medially. 



$. Differs from male in following respects : antenna less strongly pectinate, A.P.R. 10 to 17 ; 

 outer margin of fore wing strongly convex ; apex of fore wing moderately or strongly falcate. 



$ genitalia : ostial and post-ostial segments heavily sclerotized, variously shaped ; bursa 

 copulatrix with single, internally concave, scobinate signum or pair of signa. 



Discussion. Negera, erected by Walker, 1855, has until now remained mono- 

 typic. Ctenogyna, which included a single new species, natalensis, was established 

 in 1874 by Felder. Ctenogyna Felder, however, is a junior homonym of Ctenogyna 

 Macquart, 1838 (Diptera) and was replaced by Pithania Bryk (Strand, 1932 : 145). 

 Pithania Bryk, 1913, type-species, by monotypy, Ancistrota geometroides Holland, 

 has now been placed in the synonymy of Negera. Ancistrina Gaede, 1927 b, which is 

 also treated as a junior synonym of Negera in this revision, was erected for two new 

 species, immaculata and bimaculata. 



The name carnea Saalmiiller, which was listed as a junior synonym of natalensis 

 Felder by Gaede (1927 b and 1931), is correctly applied to a species of Epicampoptera 

 Bryk (see page 36). 



The genus as it now stands contains eight species. Five of these are new. 



The presence of a globose labrum in both Negera and Epicampoptera and similar- 

 ities in the colour-pattern of the wings between these two genera suggest certain 

 affinities. Epicampoptera is, however, easily separated from Negera by the genitalia, 

 the shape of the wings and the fore wing venation. 



