68 A. WATSON 



Negera natalensis geometroides (Holland) ssp. rev., comb. n. 



(Text-figs. 103-105 ; Map 3) 



A ncistrota geometroides Holland, 1893 : 177. 



Diagnosis. Distinguished from parviluma and the nominate subspecies by the genitalia 

 (Text-figs. 103-105). The two heavily sclerotized processes of each valve characterize the male, 

 and the irregularly shaped apex of the eighth tergite (subject to individual variation in dentation) 

 serves to distinguish the female. 



Measurements. Wing : <J. 23-5, 21-5-27-0 mm. (11) ; $. 26-5, 27-0-29-0 mm. (11). 



Discussion. Gaede (1927 b : 289) was the first to synonymize geometroides and 

 natalensis. However, a comparison of the genitalia of specimens from the type 

 locality of geometroides (the holotype lacks an abdomen) and the holotype of 

 natalensis has shown that they are subspecifically distinct. 



Distribution (Map 3). Known from the rain-forest areas of Cameroun, Congo, 

 and Central African Republic, but also from the forest-savanna of Uganda and 

 the myombo woodlands of Northern Rhodesia (Solwezi). The subspecies is also 

 represented in Tanganyika, at Arusha at the foot of Mt. Meru. 



Type. Holotype (sex not known), Cameroun, Ogove [Ogowe River] ; Carnegie 

 Museum type series 199 ; Carnegie Museum Neg. No. 206 M-9 ; in the Carnegie 

 Museum, Pittsburgh. (Type without abdomen.) The holotype has not been seen, 

 but a photograph of the holotype has been seen. 



Material examined. British Museum (Natural History). N.Rhodesia: 4^, 

 4 $, Solwezi, vii.1917 (D oilman). Uganda : 1 $, Port Alice [=Entebbe], 3.11.1897 

 (Ansorge). Tanganyika : 2 $, Arusha district (Moore). Congo : 1 $, Kassai, 

 Kapulumbo (Landoek) ; 2 <$, Elisabeth ville, 24.V.1950, 23-31. vii. 1957 (Seydel). 

 Central African Republic : 1 <$, Bangui (le Moult). Cameroun : 3 <$, 3 $, Ja 

 River, Bitje, 2,000 ft., vi, Dry Season, ix-xi, Wet Season (Bates). Museum d'Histoire 

 naturelle, Geneva. Congo : 1 <$, Mt. Katanga, Panda, eclosion 24. v. 1930 (Romieux). 

 Coryndon Museum, Nairobi. Uganda : 1 <$, Kawanda, io.x.1941 (Taylor) ; 1 $, 

 Entebbe, vi.1957 (Carcasson). Institut d ' Enseignement et de Recherches tropicales, 

 Bondy. Central African Republic : 1 <$, Boukoko M'Baiki, 10. ii. 1950 (Real). 

 Museum national d'Histoire naturelle, Entomologie agricole tropicale, Paris. 

 Cameroun : 1 <$, N'kolbisson (Yaoundi), at light, 30.ix.1962 (Pujol). 



Negera natalensis parviluma ssp. n. 



(Text-figs. 106-108 ; Map 3) 



Diagnosis. There are apparently no significant external differences between parviluma and 

 the previous two subspecies. In the male genitalia (Text-figs. 106, 107) there is a weakly 

 sclerotized process at the base of the valve, and a short, heavily sclerotized spine at the middle of 

 the ventral surface of each valve. The posterior processes of the eighth tergite are longer than 

 in either of the remaining subspecies. The eighth tergite of the female abdomen (Text-fig. 108) 

 is bifurcate, as in the nominate subspecies, but differs in being more evenly tapered posteriorly. 



Measurements. Wing : $. 24-5, 24-0-25-0 mm. (5) ; $. 27-5, 26-0-29-5 mm. (6)- 



Distribution (Map 3). Known from the rain-forest areas of Ivory Coast, 

 Ghana and Nigeria, and from the mangroves of Senegal. The specimen recorded 



