AGRIADES CORIDON. 39 



Corydon ab., South, "Brit. Butts.," pi. 109, figs. 11, 12 (1909).— The spots on tbe 

 underside of normal number and appearance, but much smaller in size than usual. 



We have already noted this (antea, p. 17). Eeverdin states (in 

 litt.) that he has a $ taken at Allevard, August 1st, 1909, very white 

 beneath, of the parvipuneta form, with only one basal point on the 

 underside of the left forewing (unipvncta) and with none on the right 

 (impuncta), whilst spot 6 is also wanting in the submedian series on 

 hoth sides. 



£. ab. crassipnvcta, Courv., " Mitt. Schw. Ent. Gesell.," xi., pt. 1, p. 19 

 (190B); Bartel, "Ent. Zeits. Guben," xviii., p. 115 (1904); Rebel, " Berge's 

 Schmett.," 9th ed., p. 72 (1909). Corydon ab., Girard, "Ann. Soc. Ent. Fr.," 

 v., p. 114 (1865); Mosl., "Illus. Vars.Brit. Lep.," pt. vii., pi. v., fig. 1 (1880); 

 Barr., "Lep. Brit. Is.," pi. xii., fig. li (1893); South, "Ent.," xx., p. 6, pi. i., 

 fig. 7 (1887); Pickett, " Proc. Sth. Lond. Ent. Soc," p. 114 (1902).— The basal 

 and submedian ocellated spots, also thediscoidal, much enlarged (Courvoisier). 



This large-spotted form occurs commonly aberrationally in Britain, 

 although, as a rule, the largest-spotted examples are the ? s. In some 

 districts on the continent the species appears to be uniformly larger- 

 spotted than in others, and this is particularly the case when the 

 ground colour is darker, the specimens with white or whitish under- 

 side losing the surrounding rings in the ground colour, and leaving 

 only the black kernels to represent the spots. In such cases the 

 spotting looks particularly small. Blachier notes (in litt.) a 2 captured 

 at Thoiry with exceptionally large spots. The spring races that occur 

 in the Riviera are also rather heavily-spotted (see antea, p. 17). 



o. ab. extevsa, Tutt, "Proc. Ent. Soc. Lond.," p. lxxx(1909). Corydon var., 

 Barr., " Brit. Lep.," pi. xii., fig. 1/t (1893). Striata, Seitz, " Gross- Schmett.," 

 L, p. 316 (1909). — The spots in the submedian series of both wings enlarged and 

 pointing towards the discoidai. 



We have seen several examples of this form, and have two or three 

 •of which the spots of the submedian row are particularly well-developed 

 in this direction ; the extension takes place more often in the fore- 

 than in the hindwings. 



it. ab. antico-extensa, n. ab. Corydon var., Mosl., "Illus. Vars. Brit. Lep.," 

 pt. vii., pi. v., fig. 3 (1880). Striata, Leonh., "Ent. Zeits. Gub.," xviii., p. 54 

 (1904). — The anterior wings with the spots of the submedian row extended either 

 as wedges or ovals towards the base, the two lowest often considerably approaching 

 the lower basal spot, the others simply extended (and not joined to other spots). The 

 hindwings more or less normally spotted.. One example under observation, how- 

 ever, has the submedian series largely obsolete. 



Blachier notes (in litt.) a $■ with the submedian series of spots in 

 the form of wedges on the forewings, the spots of the hindwings 

 normal. Mosley's figure is, in addition, of the costajuncta form on the 

 hind wing. 



p. ab. postico-extensa, n. ab. — The submedian series of spots on the hindwings 

 extended as wedges or ovals towards the discoidai ; the spotting on the forewings 

 more or less normal. 



s. ab. anticoextensa-obsoleta, n. ab. Corydon ab., Behfous, "Ent. Kec," 

 xx., p. 173 (1908). — Forewings with spots of the submedian row extended into 

 streaks ; the hindwings with the submedian and basal ocellated spots obsolete. 



Blachier notices (in litt.) a $ of this form taken on Mt. Vuache, 



August 2nd, 1903. It is, of course, almost the exact opposite in the 



arrangement of the obsolete and striate parts to ab. dolus, Hb. 



r. ab. dolus, Hb., " Eur. Schmett.," pi. 167, fig. 829 (1823-33); Kef., " Stett. 

 Ent. Ztg.," xii., p. 308 (1851); Krodel, " Allg. Zeits. Ent.," ix., p. 34, 

 fig. 8 (1904).— j . Underside of forewings unspotted ; hindwings with submedian 

 spots developed into stripes ; no marginal chevrons to any of the wings. 



