CHINESE DREPANINAE 119 



Paratypes. Museum Koenig, Bonn. China : 50 <$, 14 $, S. Shensi, Tapaishan 

 im Tsinling, 16.v-28.viii.1935, 1936 {Hone). BM(NH). China : 6 <$, 1 $, S. 

 Shensi, Tapaishan im Tsinling, 23.vi-25.vii.1935, 17.v-29.vii.1936 (Hone). 1 $, 

 Ichang, viii.1888 ; 1 <J, 1 $, Kwanhsien, 8.viii.i926, viii.1930 (Franck) ; 1 <J, 2 $, 

 Chang Yang, vi-vii.i 



Callidrepana gemina sp. n. 



(PI. 12, figs. 370, 371 ; Text-figs. 232-238) 



£, $. Front of head dark reddish brown dorsally, dull yellowish orange ventrally ; vertex 

 and antenna dull yellowish orange ; outer surface of palp yellowish brown. Antenna bipec- 

 tinate. Collar whitish. 



Thorax very pale yellow or yellowish white. Ground-colour of upper surface yellowish 

 white ; colour-pattern as in PI. 12, figs. 370, 372 ; apical markings, cell-spot and subterminal 

 spots dark reddish brown, other markings yellowish brown ; costa dull yellowish orange at 

 base ; both wings with bands of brilliant l\ lustrous scales along veins proximal to postmedial 

 fascia, along distal edge of postmedial fascia and along basal half of costa. Cell-spot sometimes 

 reduced in size, completely absent in one male examined. Venation of both wings as for 

 ovata (q.v). Under surface of both wings slightly paler than upper surface, but fore wing 

 yellowish brown antero-proximally and with dark reddish brown crescent near apex at outer 

 margin ; trace of postmedial fascia on hind wing ; well-marked reddish brown discocellular 

 spot. Legs pale yellow but with front surface of tibia and tarsus of prothoracic leg greyish 

 brown and femur yellowish orange. 



Abdomen similar in colour to adjacent surface of hind wing. 



Genitalia as in Text-figs. 232-238. Of special diagnostic importance in the male are the 

 heavily sclerotized valves, the broad eighth tergite and the shape of the aedeagus. 



The single postmedial fascia on the upper surface of both wings and the more 

 proximal position of the postmedial fascia on the hind wing distinguish gemina from 

 its closest relatives patrana and ovata. The genitalia of both sexes are also character- 

 istic. The chief diagnostic characters in the male genitalia can usually be seen 

 without dissection. 



Two subspecies are known : the nominate subspecies (India) and curta (China). 



Callidrepana gemina gemina ssp. n. 



(PI. 12, fig. 371 ; Text-figs. 232-235) 



Distinguished from curta by the broader, reddish brown crescentic marking at the outer 

 margin near apex of fore wing and by the male genitalia, especially the eighth tergite and 

 sternite, aedeagus, valves and socii. 



The female genitalia is figured in Text-fig. 235. 



Wing, o* 150-17-0 mm. (6) ; ? 17-5-20-0 mm. (5). 



Distribution. Only known from the type locality (N.E. India). A single male 

 in the BM(NH) from Szechwan (China), which lacks a cell-spot on the fore wing 

 may prove to represent this subspecies. 



