REVISION OF AFRICAN SPECIES OF CLEORA 49 



sharply defined, bister. Hind wing similar, but antemedial fascia wanting ; medial fascia 

 present, bister. Veins on both wings paler, tinged with cartridge buff (PI. 5, fig. 227). Under- 

 side : apex of fore wing and termen of each wing, between veins Mz and Cu\, white ; remainder 

 of wings suffused with fuscous, lightly round discal spots, densely elsewhere (PI. 5, fig. 228). 



In a comparatively fresh specimen (date 1955), the drab and bister colours are replaced by 

 smoke grey and iron grey and the cartridge buff veins are more conspicuous ; possibly these 

 colours fade to brown tones with age. 



o*. Genitalia (Text-figs. 57, 58). Scobinate medial plate of gnathus as broad as cucullus, 

 which is membranous and dilate at apex, extending slightly beyond ventral margin of valve ; 

 scobinate area on valve medio-ventrally ; arm of sacculus aculeate, two-thirds as long as dorsal 

 margin of valve ; vesica with a short, slender scobinate band equal in length to width of aedeagus 

 and two stout tapered cornuti, one slightly greater than, one slightly less than one-third as long 

 as aedeagus. 



$. (PI. 5, figs. 229, 230). Similar to male externally. 



$. Genitalia (Text-fig. 59). Lamella postvaginalis narrowly sclerotized medially with 

 concentric ridges ; lamella antevaginalis ribbed and folded ; colliculum one-half as long as 

 broad ; bursa copulatrix cylindrical, posterior extremity and anterior half membranous, 

 remainder moderately sclerotized and ribbed, the ribbing extending weakly into anterior half. 



Measurements. <? 42-44 mm. ; $ 40 mm. 



The species has a broad scobinate medial plate to the gnathus, similar to that 

 found in the preceding species lacrymata and in echinodes and a basically similar 

 sacculus structure ; the scobinate medial area of the ventral margin of the valve 

 differs from that found in echinodes in being less coarse and completely separate 

 from the cucullus. 



Externally poorly characterized. Structurally the needle-like process arising 

 from the sacculus and the ornamentation of the vesica in the male and the shape of 

 the sterigma in the female are diagnostic. 



Distribution (Map 3). Congo (Leopoldville). 



Holotype $. [Congo (Leopoldville)] : Kassai district (Taymans), genitalia slide 

 Geometridae No. 2308 in British Museum (Natural History). 



Paratypes : [Congo (Leopoldville)] : Tumbulungu, 8.ix.ig30 (G. F. de Witte), 

 1 $ ; Coquilhatville, 9.ix.i955 {Dr. M. Fontaine), 1 J ; Fl. Congo, Bolombo 

 [3°59"S. 2i°24"E.], vii.1938 (J. Ghesquiere), 1 <$ ; Uele, Bambesa, 20.ix.1933 (/. 

 Leroy), 1 $ ; Sankaru, Lusambo, 6.viii.i950 {Dr. M.Fontaine), i$ ; ibid., 8.viii.i95o, 

 1 <J ; Bena-Dibele, xi.1921 (L. Verlaine), 1 <$, all in Musee Royal de l'Afrique 

 Centrale. 



Cleora aculeata sp. n. 



(Text-figs. 60-62 ; PL 6, figs. 243, 244, 247, 248 ; Map 3) 



o*. Vestiture white, sparsely irrorate with bister, patagia edged dorsally with bister. Wings 

 white ; antemedial fascia on fore wing, medial facia on hind wing and postmedial fascia on each 

 wing bister, slender and sharply marked ; apex, termen between veins M3 and Cu\, and medial 

 area of fore wing and proximal two-thirds of hind wing sparsely irrorate, remainder of wings 

 more densely irrorate with bister or a tone paler (PL 6, fig. 243). Underside white, suffused 

 and patterned with fuscous (PL 6, fig. 247). 



