34 D. S. FLETCHER 



2 $ ; Dimbelenge, 24.x. 1950, 1 <$ ; Lusambo, 2g.viii.194g, 1 $ ; ibid., 23.vii- 

 28.ix.1g50, 3 (J, 3 ? ; Katako-Kombe, g.xi.ig5i, 1 $, all collected by Dr. M. Fontaine 

 and deposited in Musee Royal de l'Afrique Centrale ; W. Kivu, Upper Lowa 

 Valley, Nr. Masisi, 5000-6000 ft., forest and long grass, ii.ig24, wet season (T. A. 

 Barns), 3 <£. Uganda : Entebbe, 25.viii.1g61, light trap (K. W. Brown), 4^. 



Cleora prosema Prout 



(Text-figs. 34-36 ; PL 4, figs. 207, 208 ; Map 2) 



Cleora prosema Prout, 1927 : 194, pi. 20 : 11. 

 Neocleora prosema (Prout) Herbulot, 1958 : 103. 



o*. Vestiture and wings white, very sparsely irrorate with bister. Fore wing : transverse 

 fasciae bister, heavily marked at costa, slender and broken elsewhere ; antemedial fascia double 

 and marked heavily also at inner margin. Hind wing : medial and double postmedial fasciae 

 slender and bister. Discal spots on both wings very slenderly outlined in bister (PI. 4, fig. 207). 

 Underside of wings white, patterned as illustrated with fuscous (PL 4, fig. 208). 



o*. Genitalia (Text-figs. 34, 35). Valve rhomboid. Arm of sacculus three-fifths as long as 

 dorsal margin of valve, stout and straight and covered by a membranous fold from ventral 

 margin ; apex of arm incurved and densely spined, base with small, rounded, setose process ; 

 apical third of aedeagus scobinate along left half of dorsal surface ; vesica with three tapered 

 cornuti, two closely depressed, the third distinctly separate, each one-seventh as long as 

 aedeagus. 



$. Similar to male externally. 



$. Genitalia (Text-fig. 36). Lamella antevaginalis with two slender, tapered ridges 

 medially ; ductus bursae sclerotized, more heavily anteriorly ; anterior half of bursa copulatrix 

 membranous, remainder ribbed and lightly sclerotized. 



Measurements. q* 35-40 mm. ; $ 39 mm. 



Differs externally from the closely related ocnlata in the white, weakly patterned 

 wings ; differs structurally in the male in the shorter arm of the sacculus and the 

 relatively shorter cornuti on the vesica and in the female in the shape of the lamella 

 antevaginalis. 



Distribution (Map 2). Sao Thome I. ; endemic. 



Material examined. Holotype <$. Sao Thome, 10-24. 1.1926, edge of virgin 

 forest (T. A. Barns), Geometridae genitalia slide No. 2125. 



Sao Thome : data as type, 2 $, 1 $ ; Sao Thome, 24. i-25.il. 1926 (T. A. Barns), 

 2$ ; ibid., ix-x.ig26, i£ ; Sao Thome I., 30.x-24.xi.1g32 (W. H. T. Tarns), 10^. 



Cleora anacantha sp. n. 



(Text-figs. 37-38; PI. 4, figs. 2og-2io; Map 2) 



o*. Vestiture tilleul buff, patagia tipped with and abdomen lightly irrorate with bister. 

 Wings white ; area distad of slender, bister postmedial fascia of each wing irrorate with cin- 

 namon brown to bister, very sparsely on fore wing, densely on hind wing ; cinnamon brown 

 fascia, marked with ochraceous buff on veins, distad of and parallel with postmedial fascia on 

 each wing ; proximad of antemedial fascia, fore wing densely irrorate with bister and marked 

 on veins with ochraceous buff ; basal area of hind wing irrorate with bister ; antemedial fascia 



