366 



LYC^NID^. 



Thecla percomis, sp. nov. (Plate XXIX. fig. 5, 6 .) 



Male. Brownish black. Sexual mark small but distinct. Primaries have a large, somewhat 

 triangular, orange patch on the lower half of the wiug intersected by the median nervules 

 and the submedian nervure. Secondaries have a broad orange band, intersected by the 

 nervules, on the lower half of the submarginal area, and a few blue scales at anal angle. 

 Fringes of the ground-colour. Under surface fuliginous : primaries have an interrupted, 

 oblique, silvery-blue, central line, which terminates on the siibmedian nervure, in close 

 proximity to the submarginal line ; the latter represented by three linear silvcry-blue spots 

 edged outwardly with black : secondaries have an oblique silvery-blue central line, which is 

 indented just below costa, and forms a W before terminating on the abdominal margin ; sub- 

 marginal line composed of a series of silvery-blue crescents, edged outwardly with velvety 

 black, as far as the submedian nervure, from whence it runs parallel with the central line to 

 abdomuial margin ; there is an orange band on the lower half of submarginal area; the anal 

 lobe is velvety black, as also is a spot placed on the margin in first median interspace, the 

 space between this spot and the anal lobe is also black but less intense ; marginal line 

 silvery blue, only distinct towards anal angle. 



Expanse 36 millim. 



One specimen taken at Omei-shan by a native collector in July, at an 

 elevation of 4000 feet. 



This species seems very distinct on the upper surface from any Thecla 

 known to me ; on the under surface, however, it agrees in some respects with 

 T. v-alhum, but the ground-colour is darker, the markings are silvery blue in 

 colour, and the central line of primaries is obliq-ue, not curved as in 

 T. v-album. 



Thecla oenone, ?\). nov. (Plate XXIX. figs. 6 ^ , 9 2 .) 



Male. Fuliginous-browii, witli a cupreous tinge ; the sexual glandular patch on primaries is small, 

 but well defined. Secondaries have two black spots, bordered internally with fulvous, above 

 anal angle ; a white marginal dash, most distinct towards anal angle. Tails slender, black, 

 narrowly tipped and partially edged with white. Under surface fuliginous grey: the 

 ])riraarioH have an oblique white line, formed of five crescents, extending from near costa to 

 first median nervule, and a submarginal series of black spots, externally bordered with whitish, 

 but not well defined towards costa : secondaries have a central white line, intern;pted by the 

 nervules and forniing a W before reaching the abdominal margin; submarginal series of 

 black H].otH encircled with whitish, the sixth bordered with fulvous and followed by another 

 l)lack 8])ot placed nearer the margin, the seventh is double, and its lower edge bordered with 

 fulvous ; anal lobe black, with a dark patch powdered with bluish scales above it; marginal 

 lini! wliitish. 



Female. Urowiicr than tlic male ; all (ho wings have a fulvous submarginal band which docs not 

 reach llio costa. Under surface as in the male, but the submarginal sjjofs arc better defined ; 

 the wliitc (ransvcrHc line on ])rimaricH runs almost jKirallcl with outer margin as far as the 

 first median, from whence it is angulated inwards to the sul)iiKdian. Tlie anal extremity of 

 tlio abdoincn is ornamented with ii tuft of velycty-black closely comprpssed hairs. 



KxponHC 37 uiillini. 



