THYRIDIDAE OF AFRICA AND ITS ISLANDS 155 



- Apical patch in fore wing not conspicuous. Basal process on valve not strongly 



upturned ......... sigillata (p. 156) 



6 (4) Wing 8-5 mm or under. Conspicuous white apical patch on fore wing 



parvula (p. 160) (meriani, p. 160, may come out here 



- Wing over 8-5 mm. Apical patch of fore wing inconspicuous ... 7 



7 (6) Several conspicuous spots on inner margin of hind wing. Genitalia as in PI. 43, 



fig- 245 .... plagalis (p. 157) 



One or no black spots on inner margin of hind wing. Genitalia not as above . 8 



8 (7) Usually without black spot on inner margin of hind wing. Dark brown species. 



Seychelles ......... meriani (p. 160) 



With or without black spot on hind wing margin. African .... 9 



9 (8) Usually one black spot on inner margin of hind wing. Saccus rounded. Geni- 



talia as in PI. 43, fig. 246. ....... flavula (p. 158) 



Usually without black spot on inner margin of hind wing. Saccus rather 



elongate. Genitalia as in PI. 43, fig. 243 .... jejunalis (p. 155) 



Key to the Females of the African Species of SIJUA 



1 Definite groups of spines in bursa forming small signa ..... 2 



- No such groups of spines .......... 7 



2 (1) Hind wing with prominent white fascia, with median fascia of brown or black 



spots ............. 3 



- Hind wings without prominent fascia ........ 4 



3 (2) Hind wing with median fascia mostly black spots, fore wing mostly white 



neolatizona (p. 161) 

 Hind wing with median fascia mostly brown spots. Fore wings sandy brown 

 colour .......... latizonalis (p. 162) 



4 (2) Small species, wing under 8-5 mm. Prominent white apical mark on fore wing. 



Spines in bursa groups near opening to duct into bursa . . parvula (p. 160) 



Larger species, wing over 8-5 mm. No white apical marks on fore wing . . 5 



5 (4) Usually one or more black spots on inner margin of hind wing. Small patches 



of spines in bursa ........... 6 



No conspicuous spots on inner margin of hind wing. Usually three or more 

 patches of spines in bursa ...... jejunalis (p. 155) 



6 (5) Many black spots on inner margin of hind wing. Usually three patches of spines 



in bursa .......... flavula (p. 158) 



One or two black spots on inner margin of hind wing. Usually two rather loose 



patches of spines in bursa ....... plagalis {p. 157) 



7 (1) Wing under n mm. Terminal margin of hind wing strongly incised below apex 



canitia (p. 163) 

 Wing over 11 mm. Terminal margin of hind wing not or only slightly incised 



below apex ............ 8 



8 (7) Prominent lunule at apex of fore wing edged with black. Genitalia as in PI. 65, 



fig. 414 . . . . . . . . . jurcatula (p. 159) 



No prominent lunule. Genitalia as in PI. 65, fig. 411. . sigillata (p. 156) 



Sijua jejunalis (Gaede) comb. n. 

 (PI. 19, figs 97, 98; PI. 43, fig. 243; PI. 65, figs 409, 410) 



Rhodoneura jejunalis Gaede, 1917 : 375. 

 Rhodoneura jejunalis Gaede; Gaede, 1929 : 492. 



tj. Wing, 9-15 mm. Vertex white, frons white, flattened between eyes. Labial palps with 

 third segment 1/2 length of second, upturned, reaching vertex, labial palps approximately equal 



