POLYOMMATUS ICARUS. 187 



occur in the Afghanistan and Beloochistan race appear to be only such 

 as may be correlated with differences of season, elevation, etc. ; at any 

 rate, Quetta appears to produce fugitiva as its spring form, and persica, 

 Butl., as its autumn form, whilst the great elevation at which the 

 Chitral examples were taken, would account for the comparatively 

 slight differences in these examples when compared with persica, 

 Butl., and fugitiva, Butl. 



e. var. icadius, Gr.-Grsh., "Rom. Mem.," iv., p. 402 (1890); Riihl, "Pal. 

 Gross. -Schmett.," p. 2.-S9 (1893-5); Tutt, "Brit. Butts.," p. 177 (1896); Staud., 

 " Cat.," 3rd ed., p. 85 (1901); Seitz, "Gross-Schinett.," p. 312, pi. lxxx, g (1909). 

 — This is distinguished (1) by the angular form of the wings, due to the 2nd 

 nervure of the hindwings being somewhat longer than the others; (2) by the 

 absence* of the basal spots on the underside of the hindwings ; (3) by the entire 

 absence of orange on the underside of both fore- and hindwings in the s , as well 

 as on both upper- and underside in the ? f; (4) by the more delicate blue ground 

 colour of the c? s above, and that of the ? s equally delicate, but tending slightly to 

 violet ; the ? s only differ from the J s in their shade of colour, by the presence of 

 marginal black spots on the hindwings and a wider margin to the forewings. I 

 know, however, of an exception,]: in one dark ? , covered throughout its width 

 with blue scales, very thick only on the margin of the hindwings. All the spots 

 on the underside are, in icadius, smaller than in the type, but this peculiarity is of 

 little importance, being found in ail the varieties of this species in the Pamir 

 (Grum-Grshimailo) . 



Grum-Grshimailo says that, in Ferghana, the second-brood flies in 

 August, at Karamouk, in early July, but these specimens probably 

 may not belong to a second- brood, as well as the example of icadius 

 that he took at the commencement of July in theKounjout mountains. 

 There are, in the British Museum, two $ s and three $ s labelled 

 as taken by "Grum-Grshimailo, Eastern Hindu-Kuch," one $ 

 "Pamir, July 11th, 1887," and another ? (the one specially referred 

 to supra) from the Grum-Grshimailo coll., labelled "Aram Kungai 

 Zaabei." These appear to be labelled as Grum's types of icadius, and 

 two have labels in Grum's handwriting. Both sexes are of fairly large 

 size, the $ s of a delicate, but bright, blue, the £ s strongly tinged 

 with the same shade to, or almost to, the marginal border, and are 

 more particularly characterised by the absence of orange on the upper- 

 side of all the wings. The underside is pale grey in the $ s, pale 

 fawn in the $ s, with a very washed appearance ; the spots are rather 

 small, and there is a tendency to obsolescence, four out of the six 

 specimens having no basal spot, and one other only one, on the fore- 

 wings ; the marginal spotting is weak, the lunules reddish rather than 

 orange. It will be seen, therefore, that this form agrees on the under- 

 side with the characteristic forms from the south-eastern corner of its 

 range. 



* Of the two J s (Grum's) in the British Museum coll., only one is without 

 these spots ; the other j has two small ones on one side and three on the other ; 

 all the ? s have from one to four spots. 



f Both the s s have traces of orange on the underside of the hindwings, all the 

 ? s also on the hindwings and some on the forewings also. The particular ? , 

 noted below asan" exception " to the upperside colouring, has them well-developed 

 on the underside of the fore- and hindwings and very visible on the upperside 

 hindwing, whilst another, the Pamir specimen, has also traces on the upperside 

 of the hindwing. 



I This is in the British Museum coll. It is quite suffused with blue to the 

 outer margin of the hindwing, including the orange lunules and to the outer 

 marginal band of the forewings. 



