84 THE ENTOMOLOGIST. 



proof that the larva of hylas does not feed on 0)ioms or Lotus, 

 for instance. 



Distribution. — Southern and Central Europe ; Asia Minor. 

 Mr. Kane says it is locally abundant in Swiss valleys on limestone 

 formations. 



Var. nivescens, Kef. — This form of hylas is found on limestone 

 mountains in Catalonia and Andalusia. The upper surface colour 

 of the male is silvery grey, with well-defined dark brown hind- 

 marginal borders on fore wings. Hind wings with dark spots, 

 and a narrow border on hind margins. Under side very similar 

 to Swiss examples of the type, but the colour of the fore wings 

 is rather paler, and the hind margins consequently do not 

 contrast so strongly with the rest of the wing. The white streak 

 on hind wings is strii:)e-like, as in damon, but does not show so 

 conspicuously, because of the paler colour of the ground, and the 

 black spots are much smaller than in the type ; in one example 

 several of these spots are entirely absent. 



The Armenian form, armena, Stand., has the fringes some- 

 what broader than usual, and the spots on the under sides of 

 inferior wings almost entirely eliminated. 



Lyccena escheri, Hiib. 

 agestor, Godt. 



" Fringes of all the wings white. The male has the wings 

 blue, tinged with lilac, much resembling L. icarus in colour, but 

 rather brighter ; all the wings have a very narrow black hind- 

 marginal border. The female is brown, slightly tinged with blue 

 at the base ; the fore wings have a black discoidal spot and an 

 orange hind-marginal band indistinctly defined on its inner edge. 

 The hind wings have a sharply (defined) hind- marginal band. 

 Under side very much as in L. icarus var. icarinus (there being 

 no basal spots) ; the ground colour is, however, lighter, and the 

 black spots are very large and defined." — Jiang's ' Rhopalocera 

 Europse,' p. 119. 



I have only eight examples of male escheri, but among this 

 small number there are specimens with a mauve tint, others 

 shaded with violet, and one something like bellargus in tint, but 

 tinged, in certain lights, with mauve. One specimen from 

 Evolena has a blackish shade along the hind margins, and one 

 or two others hsive indistinct spots on hind margins ot inferior 



