EVEKES AEGIADES. 55 



3c. As in 36, but with orange crescents = ab. caerulescens-completa, n. ab. 

 3d. Fuscous, without blue shading, but with orange crescents = ab. fusca-fulva, 

 n. ab. 



3e. Fuscous, without blue shading or orange crescents = ab. fusca, n. ab. 



4. Fuscous-black, forewings with blue scaling to beyond disc, and on hind- 

 wings to outer margin, strongly developed round marginal spots = ab. extrema, 

 n. ab. 



4a. As in 4, but with orange crescents round marginal spots of hindwings = ab. 

 extrema-fulva, n. ab. 



46. As in 4, but the blue scaling confined to the base of the wings = ab. extrema- 

 restmcta, n. ab. 



4c. As in 46, but with orange crescents = ab. extrema-completa, n. ab. 

 4d. Fuscous-black, without blue shading, but with orange crescents = ab. 

 fidva-nigrescens, n. ab. 



4e. Fuscous-black, without blue shading or orange crescents = ab. nigres- 

 cens, n. ab. 



The peculiar blue-grey tint, observable in some examples (ab. 

 ardescens) of both sexes, and reminding one somewhat of the colour of 

 donzelii, is exhibited in the British Museum coll., by the following : 

 (1) a c? of full size, labelled " Frey coll., Bremgarten," also a 2 

 slightly tinted at base, similarly labelled. (There are other " Brem- 

 garten " examples quite typical in colour.) (2) Three $ s and two 2 s 

 under ordinary size, labelled " Frey coll., Zurich." (3) Three $ s and 

 one 2 , small, evidently Zeller' s polysperchon (Stett. Ent. Ztg., 1849, 

 p. 181). ^ (4) One $, similar, but of fair size, labelled "polysperchon, 

 S.E.Z., '47, p. 181," with orange crescents, as in $ , round the two 

 black spots nearest tail.f (5) One $ , labelled " Hokindf, May 29th, 

 1855." (6) One $ full size, simply labelled " Zell. coll." (7) One 

 $ , somewhat undersized, labelled " Zell. coll. ex. larv. April 26th, 

 1848." (8) One ? , average size, labelled " Hakodate, June or Julyi 

 '87, Leech coll." It may be further noted that nos. 4 and 6 (supra) are 

 exceptionally pallid, almost whitish ( = ab. fallescens, n. ab.), also that 

 two examples of comyntas labelled " Zell. coll. Dallas. Texas (Boll) " 

 are very similar to no. 4. Further, that a rather pale blue example, 

 approaching, but yet a great way off, the normal fulness of colour, is 

 labelled ^ by Zeller "polysperchon var., Stett. Ent. Ztg., '47, 181, 

 Glogau." It would appear that the Glogau examples, bred by Zeller' 

 and whose life-histories are described by him at length (in 1849 not 

 1847 as per label) under the name polysperchon, are mostly of the 

 unusual colour-form here noted as ardescens. The range of 2 

 variation is great. Beverdin notes that " the Swiss ?s of arqiades 

 are brown, with the exception of one 2 taken at Heremance (July 18th, 

 1901), which is strongly powdered with blue at the base of the forewings' 

 as are also the whole of the hindwings— almost to the margin, except an 

 anterior band, 3mm. wide, very sharply cut off behind, which remains 

 brown ; three black antemarginal dots (in cells 2, 3 and 4) stand out 

 conspicuously in the blue ; of the others two have fulvous lunules on the 

 upperside of the hindwings, one has one only, at the level of the tail, and 

 the other has another beyond this, two in all." The discoidal lunule on 

 the upperside of the forewings varies greatly in both sexes, being 

 sometimes very strongly developed, at other times quite absent. It is 

 noted as developed in amyntas, Fabr. The ground colour of the 

 underside varies from white to grey, occasionally with the bluish- 



. t Can this be the example mentioned above, noted by Zeller as of a "more 

 intense blue with an admixture of reddish colour ? " 



