AGRIADES CORIDON. 37 



Two examples are recorded by Hering from Garz, without ocellated 

 spots on the underside of the hindwings. Bartel also notes (Ent. Zeit. 

 Guben, xviii., p. 115) the capture of a $ at St. Moritz, July 24th, 

 1901, without ocellated spots on the hindwings, whilst the right fore- 

 wing has no basal spots and the left forewing only the lower one, and 

 both forewings w T ant the first spot of the submedian row. Blachier 

 further records two S s absolutely without ocelli on the hindwings, 

 from Thoiry and Hermance, and a similar ? from Gex ; he 

 also notes a $ without ocelli, the forewings, however, strongly of the 

 biarcuata form (= cinnus-biarcuata) from Archamp. Sykes records 

 (Ent., xxiv., p. 266) a $ with all the spots of the submedian series 

 absent on hindwings, and only the three lowest of the same series on 

 the forewings present. Rowland-Brown took an almost similar ex- 

 ample at Saas-Fee in August, 1897. 



y. ab. antico-obvoleta, n. ab. [? Dorylns var., H.-Sch., " Sys. Bearb.," i., 

 pi. lxxiv., tig. 313 (1842) or A. thetis.] Cory don var., South, "Ent.," xx., p. 6 

 (1887); Barr., " Lep. Br. Isles," pi. xii., fig. 1 (1893); Stiff, " Ent.," xxii., p. 160 

 (1889). — The forewings without the basal and submedian row of spots, the hind- 

 wings with the spotting fairly or quite normal. 



This appears to be an exceedingly rare form compared w 7 ith ab. 

 cinnus, Gerh. Neither South (Ent., xx., pi. i) nor Krodel (Albj. Zeits. 

 Ent., ix) nor Leonhardt (Ins.-Borse, xxii., p. 128) figure a distinct aber- 

 ration of this form. South, however, refers (Ent., xx., p. 6) to the capture 

 of such at Yentnor, in which " only the discoidal on the forewings are 

 present, wmilst nearly all the ocelli occur on the hindwings." There 

 are, however, several examples in different collections and Pickett 

 notes (in litt.) five $ s and five $ s in his own collection, all captured 

 in the Dover district. Stiff records the capture of a $ , at Lulworth, on 

 September 12th, 1888 ; in this specimen only two spots of the corres- 

 ponding series are present on each hindwing. Beverdin also describes 

 one taken on the Taschalp, August 29th, 1907, as follows : the ocellated 

 spots on the forewings wanting, those on the hindwings small and 

 partly lacking, particularly on the right hindwing (ill- developed) 

 which has only two dots of the submedian series, the left having five 

 (Reverdin). [Riihl adds, under his description of sohni (Pal. Gross. - 

 Schmett., p. 279), a note on the occurrence of examples that agree with 

 corydonis. Bergstr., except that one or two spots are sometimes present 

 on the hindwings ; although these (like Stiff's example) do not strictly 

 belong to this form, it appears advisable to note them here.] 



5. ab. sinistro-obsoleta, n. ab. — The underside of the two left wings of the 

 form corydonis, of the two right wings almost or quite normal. 



e. ab. dextro-obsoleta, n. ab. — The underside of the two right wings with the 

 basal and submedian row of spots absent, the discoidal and marginal spots alone 

 being present ; the spotting of the other two wings almost or quite normal. 



We have occasionally seen examples of these two forms. Pickett 

 (antea p. 18) mentions three $ s and six ? s in his collection of 

 dextro-obsoleta, and four J s and three $ s of sinistro-obsoleta, all from 

 the Dover district. 



i\ ab. obsoleta, Tutt, "Brit. Butts.," p. 167 (1896); Lamb., "Pap. Belg.," p. 

 240 (1902); Wheel., " Butts. Switz.," p. 32 (1903); Krodel, " Allg. Zeits. fur Ent.," 

 ix., p. 50, figs. 2-4 (1904); Bartel, "Ent. Zeits. Gub.," xviii., pp. 115, 117 in part 

 (1904); Leonh., " Ins. Borse," xxii., pp. 127-128, figs. 3, 10 (1905); Pickett, " Proc. 

 Sth. Lond. Ent. Soc," p. 47 (1906); Lamb., "Cat. Lep. Belg.," p. 156 (1907); 

 Bebel, " Berge's Schmatt.," 9th ed., p. 72 (1909); Keynes, "Ent. Pvec," xxi.,. 



