166 BRITISH BUTTERFLIES. 



between the discoidal and submedian also, or even between the basal spots 

 and discoidal lunule." [Colthrup notes (Proc. Sth. Lond. Ent. Soc, 

 1901, p. 24) a specimen taken at Folkestone, by Hills, the spots on 

 the underside being united into longitudinal and radial streaks, but 

 this was in error, the species being later corrected to Agriades thetis.] 



act. ab. sinistro-striata, n. ab. Icarus ab., Russell, "Ent. Eec," xxii., p. 100 

 (1910). — The underside striated on the right wings only. Eeigate. 



This specimen (which we figure) was exhibited at the meeting of 

 the South London Ent. Soc, on February 24th, 1910. We know of 

 no other example nor of a dextro -striata form. 



/3/3. ab. subtus-radiata, Obth., "Etudes," xx.,p.23,pl. iv., fig. 43 arid expl. (1896). 

 lea rus ab., Newman, "Brit. Butts.," p. 128, bottom figure (1871); South, "Brit. 

 Butts.," pi. exviii., fig. 3 (1906); Blach., "Bull. Soc. Lep. Geneve," i., p. 380, 

 pi. ix., fig. 9 (1909). — The underside with the submedian spots of the forewings 

 united with the marginal chevrons into a series of well-developed streaks, the basal 

 spots also elongated : the hindwings with the first and second submedian spots 

 united with the corresponding chevrons into similar streaks to those of the fore- 

 wings. From Besancon (Oberthiir). 



Oberthur's specimen has also an elongated discoidal on the fore- 

 wings ; those figured by Newman (Bond coll.) and Blachier (taken at 

 Hermance, and in the Eoch coll.), have a normal discoidal spot to the 

 forewings, but elongated upper basal spot on hindwings. The form 

 is, therefore, intermediate between ab. striata and ab. antico-striatd. 

 There are two very fine specimens of this form in the British Museum 

 coll. — (1) $ . The forewings with seven black stripes formed by the 

 union of the submedian spots and chevrons of marginal lunules, five 

 of them heavy, the two lowest fainter and greyish ; the first submedian 

 spot of the hindwing similarly united to the first marginal chevron ; the 

 upper basal spot elongated, the other spotting normal. From the " Mutzell 

 coll.," without data. (2) ? . Similar, but with six heavy black marks 

 similarly formed on the forewings, the usual sixth and seventh being 

 united into one, the discoidal large, the upper basal very large, the lower 

 basal long but faint; on the right forewing are extra spots on both sides 

 of the discoidal lunule; the hindwing with the first submedian and first 

 marginal chevron united into a streak ; the second to sixth submedian 

 spots lengthened towards, but not touching, the marginal chevrons ; 

 the three basal spots lengthened. From Zurich (Frey coll.). 



77. ab. nigrocuneata , Lacreuze, " Bull. Soc. Lep. Geneve," L, p. 382, pi. ix., 

 fig. 1 (1909). Icarus ab. ; Lacr., " Ent. Eec," xx., p. 174 (1908).— The upperside 

 of the wings presents no abnormal characters ; it is similar to that of the ordinary 

 ? . The forewings below are yellowish-white, the two basal spots entirely wanting, 

 the black discoidal spot of ordinary form, but, as it is situated in a whitish zone, 

 the usual white ring surrounding it does not show. The submedian points are very 

 large, cuneiform, and confluent with the antemarginal row of the yellow-orange 

 lunules ; in cellule lb the black spot is geminated and feebly marked. The hind- 

 wings below of the same whitish tint as the forewings, but a little paler ; the black 

 spots are asymmetrical, in that the right wing possesses three, and the left wing 

 two, very weakly-developed basal spots. A brownish tint accompanies the nervures 

 and strongly accentuates them. The submedian line of spots is not confluent with 

 the anteterminal lunules throughout its length, five spots being confluent, the two 

 in cells ii and iii being isolated. The series of black points, often very large, that 

 precedes the fringe, is entirely absent ; as a result, in their place, one finds 

 between the fringe and orange lunules, a series of seven very regular round spots, 

 of the same whitish colour as the ground colour of the wings. Taken at the foot 

 of the Jura, near Geneva, in A.ugust, 1907 (Lacreuze). 



The specimen, as figured, corresponds well with the description — 



