AGRIADES C0RID0N. 21 



July 19th, 1903, among other specimens which were perfectly 

 normal ; Wheeler notes (in lift.) that it is very pale in colour, 

 without the slightest greenish tint, with a fairly broad fuscous 

 marginal band on the forewing, the hindwing having only a row of 

 fuscous spots, obsolescent at each end, and bordered outwardly with 

 whitish ; the white hair-scales are fairly numerous ; the underside 

 has smallish spots on the forewings and very minute ones on the 

 hindwings, and the marginal spots on both pairs are merely indicated 

 in pale yellowish ; otherwise all the spots, including the basal, are 

 present. 



5. ab. fowleri, South, "Ent.," xxxiii., p. 104, pi. iii., figs. 4-5 (1900); 

 Leonh., " Ent. Zeits. Guben," xviii., p. 54, fig. 2(1904); "Ins. Borse," xxii., 

 p. 124 (1904); Bartel, "Ent. Zeits. Guben," xviii., p. 115 (1904); Bellamy, " Proc. 

 Sth. Lond. Ent. Soc," p. 109 (1905); South, •' Brit. Butts.," p. 108 (1906); Seitz, 

 "Gross-Schmett.," p. 315 (1909); Rebel, " Berge's Schmett.," 9th ed., p. 72 (1909). 

 Corydon ab., ? Tunaley, "Proc. Sth. Lond. Ent. Soc," p. 62(1895); Sladen, 

 "Ent.," xxx., p. 81 (1897); Fowler, "Ent.," xxxii., p. 269 (1899); Sladen, 

 "Ent.," xxxv., p. 278 (1902); Butler, "Proc. Sth. Lond. Ent. Soc," p. 44 

 (1906); Pickett, loc. cit., p. 47 (1906). — Mr. J. H. Fowler recorded (Ent., 

 xxxii., p. 269) the capture on the Dorset coast, in 1899, of some forms of 

 L. cor y don. As the descriptions of these aberrations did not accord with any 

 modification of the species with which I was acquainted, I wrote to him about 

 them. In reply he most kindly sent me a fine series for examination, and 

 for this courtesy I am very greatly obliged to him, as I am thereby enabled to have 

 figured an exceedingly interesting form of L. corydon. The male examples with 

 orange markings on the outer margin of the hindwings are curious, but the most 

 striking form is that represented by figures 4 and 5 on plale iii. In this form, of 

 which there are six males and one female in the series, the remarkable feature is 

 that the border of the outer margin is white instead of the usual black ; the inner 

 limit of this border is, on the forewings, defined by a dusky shade, and the black 

 nervules break up the border into six spots ; on the hindwings four or five of the 

 white spots are centred with black dots. Three other male examples and two 

 females exhibit gradations between the form figured and the typical L. corydon 

 (South). 



As diagnosed by South, the special feature of the $ s and $ s of 

 this form, is that the marginal border of all the wings is white, broken 

 up by the dark nervules into a series of white spots, bordered with 

 dusky internally, and each containing on the hindwings a black 

 dot. Sladen appears (/'7«£.,xxx., p. 81) to have been the first entomo- 

 logist to observe this aberration, noting that, near Devizes, in August, 

 1896, he took " a $ with the hindmarginal band white, the black 

 veins running through it to the fringe," unless Tunaley's $ , captured 

 at Freshwater, and described (Proc. Sth. Lond. Ent. Sue, 1895, p. 62) 

 as having "the black border entirely ab.-ent on all the wings," is refer- 

 able here. Fowler, in 1899, records (Ent., xxxii., p. 269) the capture 

 of several $ s and two ? s (at Swanagej, and says that he has taken 

 many examples approaching this form both at Dover and near Bland- 

 ford, but not to be compared with the above. Bellamy notes (op. cit., 

 1905, p. 109) the capture of a very fine specimen at Swanage, on July 

 20th, 1899, showing an almost total absence of spots in the white 

 border of the hindwings. Jane records its capture on August Sth, 

 1907, at Swanage. Leonhardt observes that Kiedinger took a speci- 

 men in the Schwanheim Forest, near Frankfoit-on-Mam, in August, 

 1900, and further states that he himself took two transitional speci- 

 mens at Huningen, in Upper Alsace, in August, 1903. Gillmer notes 

 (in tin.) the capture of a $ on the Muhlenberg, near Kriichern, in the 

 district of Cothen, Anhalt. 



e. ab. (? et var.) apennina, Zell., " Isis," pp. 148*9 (1847); Heydrch., " Lep. 



