POLYOMMATUS ICARUS. 167 



the forewings with a well-marked black discoidal, the submedian spots 

 thrown back towards the margin as in ab. discreta, and united to the black 

 chevrons surmounting the orange submarginal lunules. The streaks, 

 however, are very short compared with those of the corresponding 

 ones in Newman's figures (Brit. Butts., p. 128) or those of Oberthiir's 

 (Etudes, xx., pi. iv., fig. 48) or Blachier's (Bull. Lip. Geneve, i., pi. ix., 

 fig. 9) figures, and it differs in one or two other details, otherwise we 

 should have no hesitation in referring it to ab. subtusradiata, Obth. 

 These differences are — (1) The obsolescence of the basal spots of the 

 forewings. (2) The partial obsolescence of the basal spots of the 

 hindwings. (3) The approach, without actual union, of the upper 

 submedian spots of the hindwings to the black chevrons of the orange 

 spots of these wings. (4) The obsolescence of the black kernels in the 

 marginal lunules of all the wings. 



55. ab. postico-striata, n. ab. — The submedian row of spots united with the 

 black chevrons of the marginal lunules, forming a series of black stripes on the 

 underside of-the hindwings only ; the spotting of the underside of the forewings 

 more or less normal. 



This is, apparently, one of the very rarest of all the striata forms ; 

 at any rate, we have seen but very few specimens. 



ee. ab. antico- striata, n. ab. Icarus ab., Barr., " Lep. Brit. Isl.," i., pi. xi., 

 fig. 2ft (1893). Alexis ab., Obth., "Etudes," etc., xx., pi. iv., fig. 44(1896).— 

 The submedian row of spots united with the black chevrons surmounting the 

 marginal lunules, forming a series of black stripes on the underside of the fore- 

 wings only ; the spotting of the hindwings more or less normal. 



This form occurs rather more frequently than the former, but is 

 still very rare. Oberthur notes it (Etudes, xx., pi. iv., fig. 44 expl.) 

 as " subtus maculis extensis," and states that his example came from 

 Chartres, and was originally in the Bellier coll. ; this example has also 

 extended basal spots on the forewings. Barrett figures a specimen 

 which has one basal spot extended, and, although not developed into 

 streaks, the basal spots of the hindw T ings are larger than usual, those 

 of the submedian series small. There is another specimen of this 

 form in the "Dale coll.," now 7 in the Hope Museum, Oxford; its 

 teratological peculiarities have already been noted (antea, p. 122). 

 Prideaux notes (in litt.) the capture of yet another example of this 

 form, a S , at Atherfield, Isle of Wight, in 1895. Blachier sends a 

 drawing of, and describes (in litt.), a remarkable £ , in which the under- 

 side of the forewings has a large geminated discoidal lunule, the seven 

 submedian dots united with the seven submarginal chevrons as thick 

 black streaks, of which the lower (6 + 7) is double ; the upper 

 basal spot extended into a long streak and the lower into a double 

 dash ; the double streak (formed of the submedian spots 6 and 7 

 united wdth the double dash of the lower basal spot) forms on the left 

 wing, a distinct biarcuata mark, w 7 hilst, on the right wing, they merely 

 approach and form a clear bisemiarcuata mark ; all the streaks 

 and spots are edged with white, which contributes to their conspicuous- 

 ness on the brown ground colour. The red lunules are united through- 

 out and form a red band. There is near the costa a supernumerary 

 (8th) spot at the top of the submedian series on both forewings 

 (— addenda). Taken near Geneva ; in the Perinet coll. 



ft", ab. confluens, n. ab. [? Rebel, " Berge's Schmett.," 9th ed., p. 70 (1910) 

 nom. nud.] Icarus ab., Courv., "Mitt. Schw. Ent. Gesell.," xi.,p. 21, sect, e, 



