596 ME. H. H. DEUCE ON BOENEAX LYC^ENID J;. [JunelS , 



Aeehekotheix, de Nicev. 



It is with much pleasure that I am able to add auotlier species 

 to this interesting genus ; I have carefuUy examined the specimen 

 and find that it agrees exactly in venation with A. jjeniciUigera, 

 de JS^icev., — thus proyiug that Bacalana and Arrhenothnx are found 

 flying together. 



Aerheisotheix Lowii, sp. n. (Plate XXXIII. fig. 2 J .) 



<S . Upperside much like A. peninllvitrd, but of a much duller 

 and more purple shade of blue ; the apex and outer margin of 

 fore wing considerably less broadly black. The outer margins of 

 both wings, especially that of the hind wing, much more convex 

 than in A. peaicillujera. The whitish tuft of hairs covering the 

 brown patch on the fore wing as in A. penicilligera. Underside 

 differs from that species in the more russet-brown colour and by 

 the complete absence of the conspicuous white band which crosses 

 both wings. The lobe also is smaller and the tails shorter and 

 more slender, especially that one on the submedian nervure, which 

 is scarcely half the length of the corresponding tail ou A. peni- 

 cilllgera. 



Expanse Ig inch. 



Labuan {Low). 



The type of this species, and the only specimen known to me, is 

 in Messrs. Godman and Salvin's collection. A glance at the under- 

 side will at once distinguish this from its congener. 



Pratapa, Moore. 



Pbatapa lucidus, sp. n. (Plate XXXIII. fig. 3 <? •) 

 lolaiis cippu^, Druce, P. Z. S. 1873, p. 351. 



S . Closely allied to P. cippus, Fab. Differs on the underside 

 by the entire absence of the linear band, excepting over the orange 

 patch at the anal angle of the hind wing, where it is present but 

 very narrow. The black spots are smaller, and the orange patch 

 is darker and not divided as in P. cippiis. 



Expanse as P. cippus. 



Labuan {Low and Waterstr.). Type Mus. Gr. & S. 



The specimens before me show no variation. Messrs. Godman 

 and Salvin's collection also contains this species from Sumatra. 



Peatapa sahnio, sp. n. (Plate XXXIII. fig. 15 S .) 



S . Allied to P. anysls, Hew. Upperside much the same, but 

 with the shining surface on the hind wing extending further down 

 towards the apex. Underside differs from P. anysis by the band 

 which crosses both -ndngs being narrow and more sordid white, by 

 the shining surface along the inner margin of the fore wing being 

 blacker, and bj' the broken black line in the hind wing being more 

 curved outwardly towards the apex and more inclined to be semi- 



