A REVISION OF THE ETHIOPIAN DREPANIDAE (LEPIDOPTERA) 159 



Ground-colour of wings yellow, without conspicuous terminal band ; A.P.R. 21, 27 or 

 45 ; uncus and valve not as in Text-fig. 257 ; aedeagus with longitudinal carinae or 

 lateral bulge ; posterior processes of eighth sternum not forcipulate ... 2 



2 Dark transverse striations present on upper surface of fore wing ; A.P.R. 27 or 45 ; 



uncus tapered or toothed posteriorly ....... 3 



Upper surface of fore wing without transverse striations ; A.P.R. 27 ; uncus hood-like 



pumilla (p. 166) 



3 Upper surface of fore wing with several conspicuous blackish striations anterior to cell ; 



one white patch in distal end of cell, two white patches distal to end of cell (Plate 18, 

 fig. 346) ; A.P.R. 45 ; uncus toothed apically ; valves long, tapered, without pro- 

 cesses ; aedeagus with lateral bulge, without longitudinal carina ; posterior margin 

 of eighth sternum weakly emarginate medially (Text-figs. 261, 262) marcus (p. 161) 



- Whole of upper surface of fore wing densely striate with dark brown, single white patch 

 present distal to end of cell (Plate 17, fig. 340) ; A.P.R. 27 ; uncus simple, tapered ; 

 valve shaped like a bird's head, with single curved process ; aedeagus with longitu- 

 dinal carina, without lateral bulge ; posterior processes of eighth sternum extremely 

 attenuate, reflexed (Text-figs. 265-267) ..... multiversa (p. 163) 



Nidara calligola sp. n. 



(Text-figs. 255-259 ; PL 18, figs. 343, 344) 



Description, o*. ?• Palp and front of head pale orange ; vertex of head and antennal scape 

 and pedicel orange ; upper surface of rest of antennal shaft very dark brown, nearly black. 



Thorax orange dorsally, very pale yellow ventrally. Front surface of legs orange, remainder 

 slightly paler ; fore leg the most intensely coloured. Upper surface of fore wing orange with few 

 dark brownish grey scales along apical part of costa, apex and outer margin (two $ paratypes, 

 Plate 18, fig. 343), or with broad, very dark brownish grey terminal band (holotype, Plate 18, 

 fig. 344, and ? paratype) ; ground-colour of hind wing as fore wing, with very dark brownish grey 

 terminal band (tapered posteriorly in specimen illustrated in Plate 18, fig. 343 and in remaining 

 o* paratype). Fringe of both wings as for dark terminal band. Ground-colour of under 

 surface of both wings slightly paler orange than upper surface ; hind wing pattern as for upper 

 surface ; fore wing pattern as for upper surface of holotype and $ paratype, but with 

 blackish terminal band on fore wing of the two 6* paratypes slightly narrower, and tapered 

 posteriorly. 



Abdomen orange dorsally and laterally, very pale yellow ventrally. 



<J genitalia (Text-figs. 257-259) : uncus pointed apically, with pre-apical shoulders ; saccus 

 elongate ; valve with long, acuminate, medially directed process ; broad plate uniting base of 

 valves ; basal half of aedeagus flattened, distal half flattened in plane at right angles to base, 

 vesica scobinate ; eighth sternum with pair of long, acuminate, posterior processes. 



$ genitalia (Text-figs. 255-256) : ostium shielded laterally by flattened, toothed processes of 

 the eighth segment ; ninth tergum hood-like, heavily sclerotized, with irregular sharply toothed 

 posterior margin dorsally ; bursa copulatrix with pair of small, scobinate signa. 



Measurements. A.P.R. : <£, $. 24. Wing : £. 13-5, 13-0-140 mm. (3) ; $. 18-5 mm. 

 (I). 



Discussion. The colour-pattern of this colourful species is quite unlike that 

 found in any other Drepanid : it is in fact similar to that of certain species of 

 Pseudocrocinis Swinhoe (Geometridae : Ennominae). The distinctive orange and 

 dark grey coloration, and the diagnostic colour-pattern at once distinguish this 

 species from the rest of the genus. The male genitalia is also diagnostic. The 

 interesting variation found in the three males available for study (see description) is 

 illustrated on Plate 18. 



