PLEBEIUS ARGUS. 185 



MSS. (Cat., p. 25). With the ocelli united into longitudinal streaks. In Mr. 

 Haworth's cabinet. Salt marshes near Holt, Norfolk (Stephens, Illus., p. 94). 



Dale's note (Hist. Brit. Butts., p. 79) gives one the erroneous idea 

 that Haworth really named maritimus, for he says, " m another, taken 

 by Mr. Haworth in salt-marshes near Holt, Norfolk, and hence named 

 by him P. maritimus, the ocelli on the disc of the underside of the 

 wings are elongated into those on the middle of the wing, being 

 almost confluent with the following row of spots." This specimen 

 was in the " Dale coll.," when the latter was transferred to the Hope 

 Museum. Writing of this example (Ent. Mo. Mar/., xliii., p. 133), 

 Walker notes: "Another old $ , probably from Haworth's coll., 

 taken near Holt, Norfolk, and labelled 'maritimus'' at side, is very dark 

 beneath, with the ocelli of the forewings much elongated." Asking 

 for further information, Walker writes (in litt., 24. ii. '09): " This 

 specimen agrees closely with the ab. radiata, Obth., as figured in 

 Etudes Ent., xx., pi. iv., fig. 62, the chief difference being in the 

 enlarged costal spots of hindwing,' only one of which is abnormally 

 large in the " Dale " specimen, instead of two or three as figured by 

 Oberthiir. The enlarged spots on all the wings are clear and distinct, 

 not fused into one another. The ground colour of both wings 

 (probably partly owing to age) is decidedly deeper in tint than usual, 

 and, in conjunction with the slight enlargement of the spots of the 

 hindwings, gives the specimen a markedly dark effect. The orange 

 and black submarginal spots are very faint on the forewings, but clear 

 and distinct on hindwings." 



f. ab radiata, Obth., " Etudes," etc., xx., pi. iv., fig. 62, p. 28 (1896).— Our 

 fig. 62 represents an English ? with elongated spots on the underside, from the 

 collection of Howard-Vaughan. We possess also another ? from the " Prest coll.," 

 with the black spots of the hindwings very much more confluent and elongated 

 (Oberthiir). 



This is so near ab. maritimus, Stphs., that the name radiata really 

 ought to sink ; the only difference is that, in Oberthur's example, the 

 firft spot from the costa of the submedian row on the hindwing is 

 enlarged quite to the next costal spot, which is not quite reached in 

 the type of maritimus, the second spot of the submedian row is a 

 little more extended in radiata, and the spot at the anal angle is joined 

 to the spot on the inner margin, forming an I-like mark parallel with 

 the margin. The two forms are, however, exactly of the same type of 

 extension, viz., the spots of the submedian row alone are extended 

 basally, and not formed by the union of the terminal and submedian 

 rows of black spots as in our ab. juncta. 



t]. ab. juncta, n. ab. — d . Remarkable underside aberration of striate form, 

 but entirely different from those already described. In this, the dark marginal 

 series of black lunular dots, forming the internal edging of the orange series, are 

 united with the submedian series so as to form lineated streaks, six on the right fore- 

 wing, of which the first, second, and third streaks have extra dots between themselves 

 and the discoidal, whilst the fourth, fifth, and sixth, are much extended towards the 

 base. The left forewino; is like the right, but without the extra tiny spot that 

 follows streak one. The eight streaks on the hindwing are formed in exactly the 

 same manner, but are thinner medially than at the ends ; the first on the left hind- 

 wing is extended along the costa to meet the large first basal, but on the right this 

 is separate ; also the two spots forming the seventh streak, are not quite joined on 

 the left hindwing. The yellow on the underside of this specimen is very pale. 

 " Sils, 1865. Frey coll." i Described from the example which is now in the 

 British Museum coll. 20. ii. '09). 



