THYRIDIDAE OF AFRICA AND ITS ISLANDS 31 



(11) Eyes flattened on posterior margin or slightly reniform . MATHORIS (p. 51) 



Eyes rounded ............ 14 



(13) Uncus simple ............ 15 



Uncus modified, bifid or clavate. . . . . . . . . 18 



(14) Valve with prominent hair pencil (PL 33, fig. 178) . STRIGLINA (part) (p. 64) 

 Valve simple, without hair pencil. Genitalia not as in PI. 33, fig. 178 . . 16 



(15) Socii well developed (PI. 28, figs 148-152) . . NEOBANISIA (part) (p. 52) 

 Socii small or absent .......... 17 



(16) Manica weakly spined. Basal process or valve strongly hooked and upturned 



(PI. 35, fig. 193) HAPANA (part) (p. 100) 



Manica usually strongly spined. Basal process on valve only slightly hooked 



RHODONEURA (p. 84) 



(14) Eyes with interfacetal hairs ..... STRIGLINA (part) (p. 64) 



Eyes without interfacetal hairs .... . . . . 19 



(18) Uncus bifid or trifid ........... 20 



Uncus single, clavate SYMPHLEPS (part) (p. 98) 



(19) Gnathus with peg-like teeth. Valves reduced . STRIGLINA (part) (p. 64) 

 Gnathus otherwise shaped. Valves usually not reduced . BANISIA (p. 58) 



(10) Labial palps 2-segmented CECIDO THYRIS (p. 176) 



Labial palps 3-segmented ......... 22 



(21) Fore wing with R 2 +R 3 +R i EPAENA (part) (p. 106) 



Fore wing with radial veins from cell or some veins joined, but never R 2 +R 3 +R t 23 



(22) Uncus modified, clavate, bifid, or otherwise modified ..... 24 

 Uncus simple, sometimes elongate, always single ...... 27 



(23) Process on margin of valves .... GNATHODES (part) (p. 170) 

 Valve simple or with median process which may project beyond margin of 



valves, no process on margin . . . . . . . . 25 



(24) White species, underside of fore wing without black and silver scales 



PYRALIDOXA (p. 115) 

 Otherwise coloured. Prominent black and silver scales in cell under fore wing 



(PI. 12, fig. 60) ........... 26 



(25) Prominent spiny cornutus in aedeagus (PI. 41, fig. 228) CUMBAYA (part) (p. 141) 

 Cornutus, if present, not as above ..... KUJA (part) (p. 117) 



(23) Valve with lateral process on margin . . GNATHODES (part) (p. 170) 



Valve simple in outline or with median process . . . . . . 28 



(27) Small spines at base of valve (PI. 41, fig. 229). Aedeagus with one or more 



sclerotized processes ...... CUMBAYA (part) (p. 141) 



No small spines at base of valve. Aedeagus not as above . . . . 29 



(28) Fore wing with radial veins arising separately from cell .... 36 

 Fore wing with some radial veins stalked ....... 30 



(29) Fore wing with i? 4 +i? 5 .......... 31 



Fore wing with other radial veins joined, not i? 4 +i? 6 ..... 34 



(30) Antennae strongly ciliate, or if only moderately ciliate, species not white . . 32 

 Antennae minutely ciliate, white coloured species . EPAENA (part) (p. 106) 



(31) Valve broad. Manica without spines. Gnathus arms short. Large, pale 



lemon-yellow species with black veins in fore wing . . LELYMENA (p. 174) 



Not as above, Gnathus, usually a complete loop ..... 33 



(32) Gnathus greatly enlarged ..... NEMEA (part) (p. 149) 

 Gnathus not enlarged ...... BUPOTA (part) (p. 136) 



(30) Gnathus arms not meeting in mid-line. Pointed median process on valve 



(PI. 38, fig. 212) KUJA (part) (p. 117) 



Not as above ............ 35 



(34) Genitalia as in PI. 38, fig. 214 . . . . HYPOLAMPRUS (part) (p. 127) 



Genitalia not as in PI. 38, fig. 214 .... EPAENA (part) (p. 106) 



