410 On a new Lyccenid from Formosa. 



XLV. — Description of a new Lyccenid from Formosa 

 By Hamilton H. Druce, F.L.S. &c. 



Phengaris. 



Phenguris, Doherty, J. A. S. B. Ix. pt. ii. p. 36 (1891). 



Phengaris moltrechti, sp. n. 



^ . Upperside pure \rhite. Fore wing with the apex 

 rather broadly black ; a linear black spot partly closing the 

 end of the cell. Costal and basal area slightly fuscous and 

 partially suffused with pale blue scales. Hind wing with a 

 fine black anteciliary line. Underside pure white. Fore 

 wing : basal half of costal margin bluish grey ; an elongate 

 black spot closing the cell ; two subapical bands composed of 

 black spots, the innermost broadest and most irregular, the 

 lowest spot of its series, i. e. that between veins 3 and 4, 

 being separate and placed nearer to the centre of the disk. 

 A submarginal series of elongate black markings placed 

 between the nervules, followed by a black anteciliary line. 

 Cilia chequered. Hind wing white, with black spots 

 arranged as in P. atroguttata, Oberth.*, but smaller, and the 

 basal spot on the costal margin wanting. A black ante- 

 ciliary line. Cilia white. Thorax and abdomen fuscous 

 above, white below. 



Expanse 2 inches. 



Hob. Avrizan, Kagi District, Central Formosa, 8000- 

 10,000 feet {Dr. A. Moltrecht). Type, Mus. Druce. 



Described from three specimens, one of which has a minute 

 black dot in cell of fore wing below, but on left side only. 

 Allied to P. atroguttata, Oberth., but the spotting on the 

 fore wing below is quite different, the spots in the cell and 

 on the disk being absent. 



It is a much whiter insect tlian var. olbida, Leech (Butt. 

 China &c. pt. ii. p. 317, pi. xxvii. fig. 5, 1893). Doherty 

 wrote that he often saw P. atroguttata in the meadows of the 

 Naga Hills from GOOO-8000 feet, flying very slowly, and 

 visible for a great distance; but no mention of the insect 

 appears in the last volume of the 'Fauna of British India' 

 by the late Lieut.-Col. Bingham. 



* LyccBna atroguttata, Oberth. Etud. d'Entoni. ii. p. 21, pi. i. figs. Aa,b 

 (1876). 



