FORMOSAN RHOPALQCERA 87 



lunules ; no spot in cell on forewing, underside, which is the same 

 as in the male, but the sixth spot of central band in albida, 

 is present generally as a mere dot. 



Oberthür remarks of typical atrogitttata, " Le £ est en dessus 

 d'un bleu très pâle, chatoyant, a travers duquel transparaissent les 

 taches du dessous ; la | est plus blanche, et les taches du dessous 

 sont effectivement reproduites en dessus, et non pas seulement trans- 

 parentes du dessous." 



I have one female specimen which I think must approach typical 

 atrogitttata. The wings are pale blue, more so at the base and seven 

 black spots show prominently on the forewing, upperside. The spots 

 on hindwing, upperside, with the exception of the submarginal series, 

 are dark blue, not transparent from below. Of this form I captured 

 about four specimens. Var daitôzana may be easily distinguished 

 from ati'oguttata, or albida, by the absence of the spot in centre of 

 discoidal cell, underside, forewing, which is present in the two latter. 

 It also seems to be the prevalent form at Arisan so far as I have 

 examined the series taken of which ten have been retained for the 

 cabinet. It occurs at Arisan from the end of July to end of Septem- 

 ber at an altitude of from 5000 to 8000 feet and is find of settling 

 on flowers where it will remain for a long time, quiescent, with closed 

 wings. It can however fly very high when so disposed. I also observ- 

 ed a female laying eggs which were deposited on a species of low 

 growing Salix. 



Expanse. Male 38 to 54 millimetres ; Female, 48 to 58 

 millimetres. 



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

 ting-fu) ; Formosa. 



31. Arhopala sp. (?) 



Collection Number 84. One male specimen ; Kanshirei (Chinese 

 name Koan-na-nia), June 10, 1906. 



