﻿NEW SPECIES OF NOCTUID^i; FROM FORMOSA. 143 



two-thirds of the Ehopalocerii of the United Kingdom within its 

 limits ; and when we include other butterflies known to inhabit 

 the county, or observed in the past, the proportion becomes even 

 more remarkable. In the woods that border on Northampton- 

 shire, where also Cyclopides palcEmon still exists, I have found 

 Leptidia sinapis in plenty, and Mr. Kenneth Kaynor includes it 

 in his list of captures at Tingewick, on the Oxfordshire border 

 (Ent. Record, vol. xxii. p. 45). I have alluded to the former 

 occurrence of Melitcea athalia ; and if Euvanessa antiopa is to 

 maintain rank as native of Britain, it is reported from Gerrard's 

 Cross ('Entomologist,' vol. xxxiv. p. 293). A hundred years ago 

 Lewin recorded Lycana avion at Cliveden ; Black Park, Stoke 

 Poges, now partly golf links, was a popular locality for Limenitis 

 Sibylla. In his day the Eev. H. Harpur Crewe watched Apatura 

 iris soaring above the oaks of Claydon, and there is no reason 

 why it should not fly there still. But avion is no more than a 

 legend and, with the Bucks, sihylla, has long since passed to the 

 Elysian Fields. Let us hope that the opening up of the Chiltern 

 hills will not compel the disappearance of other and more 

 authentic indigenous species to the same delectable meadows ! 



Harrow Weald, Middlesex : March, 1915. 



NEW SPECIES OF NOCTUID^ FROM FORMOSA. 



By a. E. Wileman, F.E.S. 



Polia rantaizanensis, sp. n. 

 $ . Head and thorax grey-brown, mixed with darker ; abdomen 

 paler grey-brown. Fore wings grey-brown, freckled with darker ; 

 subbasal line pale inwardly edged with black, not extended below 

 median nervure ; antemedial line pale, outwardly edged with black, 

 wavy, indented above median nervure and again before dorsum ; a 

 black bar from lower end of subbasal line to the antemedial line, and 

 a black mark on dorsal area before the antemedial line ; orbicular 

 and reniform stigmata pale grey-brown, the former outlined in black, 

 the latter outlined in whitish and edged with black ; a black cloud 

 between the stigmata; claviform stigma outlined in black; post- 

 medial line pale, serrated, inwardly edged with black ; veins 2-4 

 dotted with whitish just beyond the postmedial; three whitish dots 

 on the costa beyond the postmedial ; subterminal line pale, indistinct 

 towards costa where it is inwardly edged with black, wavy towards 

 dorsum ; terminal lunules black ; fringes grey-brown mixed with 

 paler, browner at base. Hind wings pale brown suffused with 

 fuscous ; fringes grey-brown, paler at tips, browner at base. Under 

 side whitish suffused with fuscous ; all the wings have a blackish 

 discoidal dot and a postmedial line. 

 Expanse, 46 millim. 



