198 BRITISH BUTTERFLIES. 



intensity, those of var. hypochiona in our collection. There are, how- 

 ever, apparently no examples so small as those of our ab. hypochiona-minor. 

 In colour, there are three marked $ forms — lilacina (of a full lilac 

 tint), casaicus (bright blue), ^netallica (brilliant shiny blue), whilst of 

 specimens showing the rufous lunules on hindwings, we have lilacina-rufo- 

 lunulata, and casaicus-fufolunulata. The 2 s are all well-marked with 

 orange on the upperside, but, whilst the more typical form has the 

 lunules separated and weakened towards the apex of forewings, the 

 more brilliant ones, ab. w?v/afa,have them united across all four wings 

 into a well-marked band. Chapman notes (Trans. Ent. Soc. Lond., 

 1907, p. 158) that " this variety differs from the vars. hypochiona and 

 bejarensis, in that a very fair proportion of the specimens present two 

 or three of the red of the marginal peacock eyes on the upper surface 

 of the hindwings of the $ s." This, however, is only comparatively 

 true, as some of the hypochiona from Canales show very distinct traces of 

 the red lunules. In size, the largest compare favourably with the 

 largest bejarensis, although the average is decidedly below that of the 

 latter giant race. 



X. var. branaelasensis, n. var. — In size and general appearance on the upper- 

 side, very like hypochiona, of a similar brilliant blue, the black margin on the fore- 

 wings similarly broad and well-marked, but the spots on the hindwings almost 

 hidden in the marginal border ; the fringes of all the wings white. The essential 

 difference is in the underside coloration ; that of the forewings and base of the 

 hindwings being distinctly grey instead of white, the latter colour being confined 

 to the submarginal band on the hindwings ; the spotting on the underside is well- 

 developed, the orange submarginal band well-developed and of good tone. The 

 only $ in our possession is of exceedingly rich coloration, the upperside warm 

 brown with a brilliant orange submarginal band (virgata) on all four wings, and 

 the fringes exceptionally dark ; the underside of a most unusual brown tint, the 

 spots black, edged slenderly with white ; the orange submarginal band richly 

 tinted and strongly developed ; the white submedian band narrow but snowy-white ; 

 the marginal spots delicately edged externally on both wings with snow-white 

 lunules, and usually three blue kernels well developed in the anal spots of the 

 hindwing. 



Among the $ s, three specimens are of the rufolunulata form, the 

 lunules in one being strongly, in the two others more weakly, 

 developed. Captured near Braiiuelas, in Asturias, July, 1906. 



ix. var. vigensis, n. var. — The d s of a bright purplish-blue; the black 

 marginal band of the forewings rather narrow, well-defined on the inner edge ; the 

 hindwings spotted marginally with black, the costa dark ; the fringes of all the wings 

 snowy-white. The underside grey-white, bluish at the base ; the spots only 

 moderately developed, black with white margins; the orange band well-defined on 

 all wings, very bright!}' coloured on hindwings. 



This race, taken in the neighbourhood of Vigo, is much smaller 

 than the other Asturias' races, casaicus and branuelasensis. The 

 specimens have the same range of colour variation, some $ s being of a 

 very bright blue, others of a more distinct lilac tint agreeing with ab. 

 lilacina in this respect. Occasional <$ specimens also exhibit well- 

 defined orange lunules above the two anal marginal spots of the hind- 

 wing, thus forming an ab. rufolunulata of this vigensis race. The 

 underside suggests distinctly a heath form, and is altogether wanting 

 in the pure silvery-white colour that characterises hypochiona, 



v. var. pyrenaica, n. var. — A race of this species is found at Gavarnie and 

 elsewhere in the Pyrenees, which is of little more than normal size, but which has 

 the deep blue ground colour of hypochiona, the forewings with wide black margins, 

 the marginal spots of the hindwings absorbed into the dark marginal border 



