268 BRITISH BUTTERFLIES. 



wings." Aigner-Abafi says that there is a^ in the "Treitschke coll.," 

 SOmrn. in expanse, some of the spots on the underside of the forewings 

 of which are very much elongated. Wheeler informs us (in litt.) that 

 the spots of the forewings have been those especially affected in the 

 specimens he has seen. Specimens in which some of the spots are 

 elongated in this manner are rather rare. 



e. ab. lineata, n. ab. — A specimen quite extreme in the development of the 

 spots is in the British Museum coll. It is far in advance of any of the forms 

 described above under the name striata, in which " some of the spots " are extended 

 into streaks, for this has practically all the spots developed into thick bars on both 

 fore- and hindwings. The discoidals are normal, so is the costo-basal spot of the 

 hindwings, but spots 1, 2, 3, 4 and 5 of the forewings are thick cuneate strokes, 

 some 34mm. in length, whilst 6 and 7 are almost normal. On the hindwings, 

 spots 1, 2, 3, 4, 5 and 6 are as strongly developed (1, 2 and 6 particularly so), 7 

 and 8 much larger than usual, whilst a supernumerary 9 runs as a thick stroke half- 

 way the length of the inner margin. The example is a s , without data. 



Krodei has sent us a photograph of a very similar specimen taken at 

 Nurnberg. The streaks in this specimen extend from 2mm. -5mm., and 

 every spot except 6 and 7 on the forewing is much lengthened as in the 

 type example in the British Museum coll.. See also antea pp. 260-261. 



Local Races. 



a. var. cim,on, Lewin, "Ins. Gt. Brit.," i., p. 80, pi. xxxviii., figs. 6-7 (1795). 

 Cymon, Haw., " Lep. Brit.," p. 48 (1803); Sam., " Ent. Usef. Comp.," pp. 242, 381, 

 417 (1819); Conway, "Loudon's Mag.," vi., p. 96 (1833); Bree, " Loudon's Mag.," 

 vi., p. 190 (1833). Acis, Stphs., " Illus. Haust.," i., p. 86(1828); Humph, and 

 Westd., " Brit. Butts.," p. 202 (1841) ; Wallgrn., " Skand. Dagf.," p. 238 (1853) ; 

 Stn., "Man.," i., p. 58 (1857); Dale, " Hist. Brit. Butts.," p. 56 (1890) ; Barr., 

 " Lep Brit. Isl.," i., p. 94, pi. xiv., figs. 2-26 (1893). Semiargus, Lampa, " Ent. 

 Tids.," vi., p. 5 (1885); Auriv., " Nord Fjar.," p. 15 (1888); Tutt, "Brit. Butts.," 

 p. 164 (1896). Angustimargo, Gillm., " Int. Ent. Zeits.," ii., p. 313 (1909).— The dark 

 blue. — This is a very rare butterfly with us, and, as may be supposed, our knowledge of 

 its natural history is very confined. The caterpillar is unknown. The last week in 

 August, 1793, I took two or three of the butterflies, flying in a pasture field at the 

 bottom of a hill near Bath. They were much wasted in colour, and appeared to 

 have been long on the wing, so that it may be concluded that they were first out 

 from the chrysalides about the middle of July. The upperside is represented at fig. 

 7, the underside at fig. 6 (Lewin). 



The characteristic of Lewin's cimon is the very narrow marginal 

 border to the upperside of the wings. The ground-colour is purple- 

 blue, the spots on the underside rather small, the bases of the wings 

 blue scaled. The British examples appear to be absolutely identical 

 with specimens from Scandinavia and St. Petersburg, and the narrow- 

 bordered specimens from Germany, e.g., Anhalt, etc. The underside 

 appears to be very uniformly grey in its ground-colour, and a faint 

 suspicion of brown in that of the $ . It is one of the brightest-tinted, 

 narrow-margined forms that we have seen, and is apparently charac- 

 teristic of northern and western Europe. The second-broods from 

 Savoy, etc., are very similar. The $ s appear to have the fringes tending 

 to dark grey rather than white in the British specimens examined. 



£. ab. coelestina, Mill., " Petit. Nouv. Ent.," no. 64, p. 256 (1872) ; 

 " Iconog.," p. 440, pi. 154, fig. 3 (1874). Cyllarus var., Staud., " Cat.," 

 3rd ed., p. 89 (1901). — In speaking of the entomological riches of the Val 

 Lantosque, 1 have already mentioned in Lee Petites Nouvelles Ent., no. 

 64, the presence, in the Alpes-Maritimes. of that Lycamid of Southern Russia, 

 discovered in 1843 by Eversmann. Although both sexes of the species have been 

 figured, I consider it necessary to give a representation of J coelestina in my 

 Iconographie, as it is practically a novelty to most entomologists. 1 trust by doing 

 this to call the attention of lepidopterists to this beautiful Lycosnid, which ought to 

 occur in Switzerland, and still more so, in the Pyrenees, where it might be 



