Lepidoptera of the Altai Mountains. 825 



the Altai which might have been mistaken for tliis, is a 

 somewhat worn specimen of cyane. 



50. L. cyane, Eversm. and var. deserficola, var. no v. 



I found a very small form of this in the Tchuja Steppe 

 on July 19th, when the males were much worn, flying 

 on very bare stony ground where no other butterfly, 

 except Satyrus autonoe, occurred. These are of the same 

 size or smaller than pylaon from Sarepta, and on the 

 upperside resemble that species, though on the underside 

 they want the brown marginal spots on the fore-wing, I 

 distinguish this as var. descrticola. Jacobson took at On- 

 godai several specimens of a much larger form, like typical 

 cyane from Guberli in the Ural, but with the pale marginal 

 border on the fore-wing less conspicuous, and the black 

 border outside it much more so, and of a slightly darker 

 shade of blue. I believe that this must be considered as 

 a species distinct from ^7?//«o?i. The females show no 

 brown spots on the upperside of the fore-wing as in 

 pylaon, and are ccerulescent in colour, as described by 

 Staudinger in his Catalogue. 



51. Z. orion, Pall. 



Taken at various places up to 3500 feet at the begin- 

 ning of June, and again at the beginning of August, so 

 that there are probably two generations, which do not 

 seem to differ. I found the insect nowhere common, and 

 indistinguishable from European specimens, as are those 

 from the Alatan and Thianshan. The var. orithyia, Grum, 

 from Amdo (cf. Hor. Ent. Soc. Ross., xxv, p. 8 scp.), is also 

 distinguishable, judging by the three type specimens in his 

 collection, though the $ shows a little orange at the anal 

 angle above, which none of my others do. 



52. L. laton. Berg. 



A single specimen only taken at Ongodai on June 10th. 



53. L. pheretes, Hb. 



Common from about 6000 to 8000 feet in July, and not 

 differing, as far as I can see, from European specimens. 

 Staudinger describes a variety from Kentei under the 

 name of pheo'etimus, as much larger, with broad black 

 borders. A pair which I have from thence as well as one 

 from Irkut seems to be^r out this character. 



TRANS. ENT. SOC. LOND.. 1899. — PART III. (SEPT.) 22 



