i 4 2 A. WATSON 



The male genitalia of this species are particularly interesting, although the 

 homologies of the various parts are by no means clear. The most dorsal of the two 

 pairs of acuminate posterior processes probably represent the uncus, and the ventral 

 pair the gnathus. The curious, setose diaphragma pockets may be sensory, but they 

 apparently do not function as scent organs as the setae are less densely arranged and 

 more firmly attached at their base than in typical brush-organ setae. Both the 

 aedeagus and the eighth abdominal sternum are firmly attached by sclerotized con- 

 nections to the sternal region of the vinculum. 



Distribution (Map 6). Known from the Ivory Coast, Ghana, Togo, Central 

 African Republic, Cameroun, Congo and Uganda. It is quite possible that the 

 Ugandan specimen listed below represents a new subspecies, but as only one female 

 was available for study it has not been possible to establish this with any certainty. 



Material examined. Types. Holotype <$ of oculata ; Gabon, Ogowe River ; 

 in the Carnegie Museum, Pittsburgh. I have not seen this type, but Dr. H. K. 

 Clench has kindly dissected it and sent me photographs and drawings of the whole 

 insect and the genitalia. Holotype <$ of diagonalis ; Gabon ; in the Zoologisches 

 Museum, Humboldt Universitat, Berlin. Holotype <$ of sulphurea ; Ghana ; in the 

 British Museum (Natural History). 



Other material. British Museum [Natural History). Ghana : i <$, Gambaga 

 (Bury) ; i <3\ Kumasi, 24.v-18.vii (Sanders). Nigeria : 1 <$, Ibadan, 27. vi. 1957 

 (Sutton). Cameroun : 2 $, Bitje, Ja River, 2,000 ft. ; x-xi.1912. Congo : 2 <$, 

 Elisabethville, 14. v. 51, 14.lv. 1952 (Seydel). Central African Republic : 1 J, 

 Boukoko, vii.1949 (Real). Institut d'Enseignement et de Recherches tropicales, Bondy. 

 Ivory Coast : 1 $, near Nimba, 29. i. 1957 (Real). Central African Republic : 

 2 o\ Oubangui-Chari ; Boukoko, M'Baiki, io.ix, 6.x. 1949 (Real). Zoologisches 

 Museum, Humboldt Universitat, Berlin. Togo : 1 <$, Bismarckburg [8° 12'N, 

 o° 33'E], 1-15.ix.1891 (Buttner). Cameroun : 1 <$, Akoafim, 1914 (Tessman). 

 Museum d'Histoire naturelle, Geneva. Congo : 1 <3\ Katanga, Tshituru, 12.iv.29 

 (Romieux). Coryndon Museum, Nairobi. Uganda : 1 $, Fort Portal, iii.1959 

 (Carcasson). 



ARCHIDREPANA Warren 

 (Text-figs. 230-234 ; PL 15, figs. 33i"333) 



Archidrepana Warren, 1902 : 487. Type-species, by monotypy and original designation, 

 Archidrepana saturniata Warren, 1902. 



Description. $. Proboscis absent. Palp extending short distance above labrum. Whole 

 of antennal flagellum unipectinate. 



Meso- and metathoracic tibia each with single pair of short terminal spurs. Fore wing falcate ; 

 areole elongate ; R x arising from near anterior angle of cell, R 2 and R 3 from areole ; i? 4 anasto- 

 mosing at a point with i? 5 (Text-fig. 230). Outer margin of hind wing weakly concave near anal 

 angle ; Sc + i? x approximating to Rs for short distance distal to end of cell. Upper surface of 

 fore wing with strongly marked antemedial and postmedial fascia, both sharply bent inwards 

 near costa ; usually with several irregularly shaped pale patches at distal end of cell and dark 

 subterminal spot between Cw la and Cu lb . Upper surface of hind wing with well marked sub- 

 basal fascia and medial fascia (continuous respectively with antemedial fascia and postmedial 



