140 



BRITISH BUTTERFLIES. 



broad, the edge slightly wrinkled and sinuous, scarcely denticulate. Maxillary palpi 

 with the basal joint bearing an inner and an outer palp, the basal joint of the outer 

 cylindrical, broader than long ; second cylindrical, twice as broad as long, and two- 

 thirds as stout as the preceding, the apical joint similar to it, but only half as broad 

 and tapering slightly, the inner palp consisting of two joints similar to the apical 

 two of its neighbour, but a little smaller. Spinneret small and linear. Labial palpi 

 apparently consisting of a single cylindrical, very slender, joint. Body marked with 

 longitudinal and oblique stripes and bands, pretty regularly arched longitudinally, 

 but elevated more anteriorly than posteriorly, and sloping almost uniformly over the 

 whole abdomen, but more rapidly on the last two segments ; viewed from above 

 ellipticai, the anterior border broadly rounded, broadest on the middle of the 

 thoracic segments, tapering posteriorly very gently to the 7th abdominal segment ; 

 behind, narrowing to a more sharply rounded tip ; dorsal area narrow, fiat or 

 slightly sulcate ; sides pretty high, tectiform ; substigmataL fold rather prominent, 

 uniform ; segments not at all arched or prominent. Skin delicately shagreened, 

 the whole upper surface covered ixniformly and somewhat frequently with minute 

 warts, emitting short, erect, inconspicuous hairs ; upon the summit and anterior 

 portion of the first thoracic segment they are twice or thrice as long and stouter, 

 and there is also a series of similar hairs upon the laterodorsal ridge and the 

 substigmatal fold, a good many hairs to each segment. The short hairs are of 

 uniform thickness throughout, smooth, and round tipped ; the long ones taper very 

 slightly, are not delicately pointed, and are uniformly, distantly, and very delicately 

 spiculiferous. Spiracles very small, almost round, or a very little ovate. Legs 

 very small, tapering, the last joint veiy slender, the claw minute, delicate, curving 

 considerably and regularly. Prolegs very short, rather stout, each furnished at tip 

 with a double pad, and each pad with a double crescentic row of rather slender 

 claws. 



Pupa.'— Viewed from above the outline of the body is a little more than 

 twice as long as broad, composed of two longitudinally contiguous, broad and short 

 ovals, one about five-eighths of the whole, formed by the abdomen, and one by the 

 parts in front ; the latter is considerably shorter, and but slightly narrower, than 

 the former, scarcely narrowing behind at its junction with the abdomen, narrowing 

 somewhat, and well arched, in front, the prominence of the head scarcely causing any 

 lack of regularity in the curve, the basal wing-tubercle scarcely perceptible ; the 

 abdomen quite regular and equal in its curve, the posterior end being pretty broadly 

 rounded. Viewed laterally, the division between thorax and abdomen is marked 

 by only a small, rounded hollowing ; the thorax is most prominent just behind the 

 middle of the mesothorax, and curves forward with a full and rather rapid, pretty 

 regular, downward arch, the same curve continued backward posteriorly with 

 perfect regularity ; the abdomen is roundly and regularly arched, highest, and 

 slightly higher than the thorax, at the 3rd and 4th segments, the posterior end of 

 the body sloping about as rapidly, though generally a little less than the anterior, 

 the apical half of the 9th abdominal segment being perpendicular. Transversely, 

 the middle of the thorax is well arched, but considerably and rather broadly 

 hollowed in the middle of each of the sides, the summit well rounded ; transversely 

 the middle of the abdomen is very broadly and regularly rounded, forming a 

 scarcely depressed semicircle. Three-fifths of the tongue exposed, the inner sides of 

 the legs having the tongue interposed between them. Basal wing-prominences 

 consisting of exceedingly slight, transverse, oblique, low ridges. Posterior border 

 of the wings straight. Whole body covered with an interlacing, delicate network of 

 raised lines, distinct under a lens, their points of intersection generally raised a 

 little, and bearing a little wart ; other independent warts in the cells, broader than 

 high, give rise to spiculiferous hairs, generally rather short, sometimes very short. 

 Booklets short and very slender, the stem equal, curved somewhat at the tip, 

 bearing a sudden lenticular expansion, which is bent downward almost upon the 

 stem, the lateral portions a little j)roduced downward, the expansion three times as 

 broad as the stem. 



Of the species in this tribe, Bethune-Baker writes (in lift.) : " The 

 group of hairstreaks, including pruni, w-album, spini, sassanides, touj- 

 stroemi, lunulata, etc., occurs throughout the Pahearctic and Nearctic 

 regions ; it also extends just within the Indian region, for Watson took 

 a single specimen of sinensis, Alph., at Gunduk, northeast of Quetta, 



