80 A. WATSON 



or only weakly sigmoid in sumatrana. The male genitalia, which indicate close 

 affinities with problematica, differ from the latter in the basally constricted socius 

 and the ventrally directed processes of the lateral sclerites of the diaphragma. In 

 comparison with agna the male genitalia of argenticeps are characterized chiefly by 

 the more strongly developed spine at the base of the valve, the longer socius spine, 

 the more strongly bifurcate uncus, and by the shape of the lateral processes of the 

 vinculum which are directed ventrally and flattened laterally, not dorsoventrally, 

 and are minutely spinose anteriorly. 

 Distribution. N.E. India. 



Type. LECTOTYPE $, here selected, labelled: Khasis, Aug. 1895, Nat. Coll. ; 

 Albara argenticeps Type <$ Warr. ; Rothschild Bequest B.M. 1939-1 ; Drepanidae 

 genitalia slide No. 777. In the BM(NH). 



Nordstroemia sumatrana (Roepke) comb. n. 

 (PI. 4, fig. 325 ; Pis. 6, 7, figs. 339, 340, 344) 

 Allodrepana sumatrana Roepke, 1948 : 214. [Figs.] 



Probably most closely allied to argenticeps which it resembles externally except 

 for the more conspicuous subterminal markings and the straight or only slightly 

 sigmoid antemedial fascia on the fore wing. In the male genitalia the socii are not 

 constricted proximally and the processes of the lateral sclerites of the diaphragma 

 are dorsoventrally flattened and inwardly directed. 



Distribution. Sumatra, and probably Malaya (ex. in BM(NH)). 



Type. Holotype $, S. Sumatra, Mt. Tanggamus, 2100 m., xii. 1934 (Lieftinck 

 and Toxopeus) ; Drepanidae genitalia slide No. 1882. In the Rijksmuseum van 

 Natuurlijke Historic Leiden. 



Nordstroemia japonica (Moore) 

 (Text-figs. 143-147) 



Drepana japonica Moore, 1877 194. 



Drepana japonica Moore ; Strand, 191 1 : 201. 



Drepana japonica Moore ; Gaede, 1931 : 26. 



Albara japonica (Moore) Warren, 1922 : 469. 



Albara japonica (Moore) ; Inoue, 1956a : 663. 



Albara japonica (Moore) ; Inoue, 1956 : 368. 



Albara japonica (Moore) ; Inoue, 1959 : 175. [Good fig.] 



Nordstroemia japonica (Moore) Inoue, 1962 : 27. [Good figs., including genitalia.] 



Albara sachalinensis Matsumura, 1921 : 943. [Synonymized by Inoue (1956a).] [A syntype 

 of each sex of ab. punctifera Strand (191 1 : 201) has been examined and found to be con- 

 specific with the type of japonica.] 



This species is possibly not separable externally from grisearia, to which it is 

 closely allied, but can be distinguished by the shape of the lateral diaphragmal lobes, 

 the socii, uncus and aedeagus in the male genitalia, and by the shape of the dorsal 



