FORMOSAN RHOPALOCERA 



9i 



brillantina and the Formosan specimen might, as regards markings 

 of upper side, be easily mistaken for brillantina, were it not for the 

 fact that in brillantina the characteristic blue anal line and fulvous 

 anal patch on hindwing of scintillans are absent. Brillantina and 

 scintillans however differ on the underside but both species have 

 green males. The second specimen taken as Arisan (No. 160) has 

 only two, much smaller, fulvous patches, less orange in colour than 

 fn the first female (No. 159), the patch in second median interspace 

 being absent. This specimen as regards upper side is quite similar 

 to female specimens of Z. arisanns, sp. nov. described under No : 

 20. On the underside it agrees very well with Leech's figure, (Fig. 

 10), but has more fulvous at anal angle. Both specimens have the 

 characteristic pale blue submarginal line near anal angle of upperside 

 of hindwing. 



The different forms of the female of scintillans known to me so 

 iar as occurring in Central China and Formosa may be summed up 

 as follows : — 



Typical female scintillans, Leech, three fulvous patches, one at 

 apex of cell and two in first and second median interspaces of fore- 

 wing, from Central China and Formosa. 



Female, scintillans, Leech, with two fulvous patches, one at 

 apex of cell and one in first median interspace of forewing, from 

 Formosa. 



Female, taiwanns, Wileman, with large blue patch in cell and 

 median interspaces of forewing. 



Female, taiwanus, Wileman, with large blue patch in cell and 

 median interspaces, and two fulvous spots, one at apex of cell and 

 the other in first median interspace. Expanse. Male 46 to 49 

 millimetres ; female, 40 to 46 millimetres. Distribution Central China 

 (Chang-yang) ; Formosa. 



34. Zephyrus arisanus, sp. nov 



