264 BRITISH BUTTERFLIES. 



Rilo mountains, the specimens are imicolorous, without definite 

 markings; whilst Penther records that, on the Grand Prenj mountain, 

 at from 3O0m. to 1900m., very dark examples are found from the middle 

 to the end of July. Mrs. Nicholl considers that the form at Granada 

 is something very near unicolor, although she also records cervantes as 

 occurring in the same neighbourhood. Lowe notes ab. unicolor, or an 

 approximate form, at Susa, described by Wheeler [Butts, of Sivitz., p. 

 8) as " ab. approximate, so-called because approaching the var. 

 unicolor • " ; whilst Lambillion {Cat. des Pap. cle la Belgique, app. p. iv) 

 describes an ab. minima as being about " half as small again as the type, 

 the wings darker, with the markings ill-defined. . Captured at Jarnbes 

 (August, 1904), Denee (May 25th, 1904)." Zeller observes that the 

 Carinthian specimens, taken on the Prediel in May and the first half 

 of June, were decidedly larger than the German (Posen) ones, but, as 

 those collected at Bruck-on-the-Mur, in the beginning of August, do not 

 differ much from the latter in size, he queries whether the second brood 

 in the Carinthian Alps does not consist of equally small specimens. 

 On examining the long series in our cabinet from various localities, we 

 have made the following notes : Spring examples — (1) Digne, April, 1897 : 

 $ s and 2 s with forewings very uniform drab-brown ; the 2 s hardly 

 greyer than the $ s ; the forewings fairly well-marked ; two transverse 

 rows of elongated dark spots, one before and one beyond the middle ; some 

 medially marked with grey ; white marginal dots well-marked ; costal 

 dots 1 to 3 ; hindwings from unicolorous to others with fair transverse 

 pale band ; marginal dots distinct. (2) Cannes, March and April, 

 1898, 1899, 1903 : More uniform in drab-brown tint, less mottled than 

 those from Digne ; the $ s particularly unicolorous, with the trans- 

 verse, brown, lineated bands ill-marked ; the 2 s more distinctly banded, 

 greyish medially, and larger in size ; the hindwings particularly uniform, 

 except in one or two well-marked $ s ; the white marginal dots very indis- 

 tinct in some examples, particularly on hindwings; the broken-banded $ s 

 have a particular alceae-like appearance ; one $ almost absolutely uni- 

 colorous, except for a single white costal dot (bands, marginal dots, etc., 

 obsolete), colour quite sooty-fuscous. (3) Draguignan, May 2nd- 6th, 

 1905 : The largest in the collection, drab-brown in tint, variable in the 

 amount of transverse markings ; the grey exceedingly well-marked in 

 some 2 s ; traces of double pale band crossing the hindwings. (4) 

 Carqueiranne, 1 $ , April 26th, 1905 : Like those from Cannes. (5) 

 Brunnen, May, 1902, 2 $ s : 1 J rather small, fuscous-black, with 

 grey shading medially, unicolorous hindwings ; the other larger, almost 

 unicolorous fuscous-black, with white marginal dots on fore- and hind- 

 wings, nearest to the Pontresina form. (6) Pontresina, 2<?s, 1$, 

 July lst-12th, 1900: Very dark blackish-brown, the outer marginal 

 area, the two transverse bands, and basal blotch, very deep in tint; the 

 spaces between the darker bands grey, the median area particularly 

 strongly banded ; the row of white marginal dots conspicuous ; fringes 

 of forewings with basal half tinged with grey ; hindwings very deep 

 blackish-brown, with conspicuous row of tiny white marginal dots ; 

 outer edge of fringes pale. (7) 1 $ , Saeterstoen, June 25th, 1898 : $ 

 small, drab-brown, almost unicolorous. Summer brood — (1) Susa, 4 $ s, 

 August, 1H97 : Rather bright brown tending to unicolorous, with only 

 slightly darker brown bands, and paler (almost ochreous) speckling. 

 (2) Gresy-sur-Aix, July, 1898, August, 1897 : 9 S s, very like the Susa 



