324 A. E. WILEMAN. 



caused by the coalescing of the marginal and submarginai bands of spots of 

 underside reproduced on the upper side. The median macular band of 

 underside of hindwings is more regular and straighter than in albida. 

 Expanse, 49-58 millimetres. 



Distribution. India (Naga Hills) ; Western China (Moupin, Chia- 

 ting-fu) ; Formosa. 



16. Zephyrus taiwanus, sp. nov. 



Collection Number 83. Two female specimens ; Jüjimichi (Arizan), 

 5,025 feet; September. 



Female. This species is, as regards ippcrside of forevving, very 

 similar to the figure of female Thccla japonica, Murray, figured by Pryer 

 in " Rhopalocera Nihonica" (pi. iv, fig. 7 d p. 14), which is referred to 

 by Leech as being a female variety of Zcpliyrus taxi/a, Bremer, (Leech, 

 Butt. China, Japan, Corea, p. 371, 1892-93). It differs from japonica in 

 the following respects. The ultramarine blue patch of scales on upper 

 side of forewing is much larger, extending from cell to inner margin and 

 a part of the upper median interspaces below cell is also filled up with 

 blue giving the patch a triangular shape. There are also two small fulvous 

 spots (one only in japonica), one at the end of cell, followed by another 

 beyond in the first median interspace ; tails long and slender ; 

 towards anal angle is a pale blue submarginal line. In the second female, 

 however, these two fulvous spots are entirely absent. In both specimens 

 the upper side of hindwing is sparsely powdered, in cell and below cell, 

 with blue scales. It is possible that taiwanns may be merely a female 

 variety of Leech's female scintillans. The colour and markings of the 

 underside are very similar to that species (.£ Z. scintillans, Leech, Butt. 

 China, Japan, Corea, pl. xxvii, fig. 10, p. 376). As regards upperside 

 taiwanus differs from female scintillans in the following respects. 

 Scintillans has only a fulvous patch on the forewing, much larger than in 

 taiivanus which has an ultramarine blue patch in one specimen and blue 

 and fulvous patches in another specimen ; taiivanus has no fulvous patch 

 above tail. As regards the underside tahuanus differs from scintillans 

 in having no discoidal bars on any of the wings, the upright stroke of the 



