oo4 BRITISH LEPIDOPTERA. 



also in the beginning of June, 1857, at Mickleham, whilst one speci- 

 men in Stainton's collection is noted as captured at Headley Lane, 

 June 30th, 1857 ; Fletcher took imagines in June, 1885, followed 

 by others in August of the same year ; Douglas also found imagines 

 in August, 1853, in Headley Lane. Mines were taken by Fletcher 

 in October, 1885, in Arundel Park, and by Warren in the same month 

 and year in Headley Lane. 



LOCALITIES. SURREY: Headley Lane (Douglas), Mickleham (Stainton). 

 SUSSEX: Arundel Park, not uncommon (Fletcher). WILTSHIRE (Meyrick). The 

 specimens recorded from " YORKSHIRE : Scarborough (Stainton) " must be referred 

 to N. eurema. 



NEPTICULA EUREMA, n. sp., Durrant. 



SYNONYMY. Species : Eurema, n. sp. Cryptella, Sta., " Ent. Weekly Intell.," iv., 

 p. 102 (1858) ; "Man.," ii., p. 432 (in part) (1859) ; " Tin. of Southern Europe," 

 pp. 229 and 359 (1869) ; Mill., " Cat. Lep. Alp. Mar.," p. 373 (1875) ; Porritt, " List of 

 Yorks. Lep.," p. 171 (1886) ; Wlsm., " Ent. Mo. Mag.," xxvii., p. 152 (1891). 



IMAGO. Head and face ochreous. Antenna? fuscous externally, 

 pale cinereous on their inner sides ; eye-caps whitish. Palpi whitish. 

 Thorax sooty. Forewings whitish, densely irrorated with sooty scales, 

 slightly beyond the commencement of the apical third of the costa a 

 fascia of the pale ground colour, variable in width and slanting 

 slightly outwards, runs to the dorsum. (This fascia is sometimes 

 divided into costal and dorsal spots by the dark scaling.) Cilia 

 whitish, with a few sooty scales near the termen, and with a dividing 

 line of sooty spots. The ? with the fascia broader and more distinct 

 than in the male. Exp. al. $ 6 mm., ? 5 mm. (but both sexes 

 often smaller). Hind-wings pale cinereous, cilia somewhat paler 

 and more yellowish. Abdomen dark cinereous ; anal tuft of <? 

 whitish. Hind-legs whitish. Type : <? and $ Mus. Wlsm. (described 

 from British specimens, Harper coll.). Hab. Scotland : Melvish 

 (Sutherland). Larva : Lotus corniculatits, excl. ix., 1886, five speci- 

 mens (Durrant, July 15th, 1898, inlitt.}. 



VARIATION. X. eurema is variable in size, but it is generally a 

 smaller and more stumpy species than X. cryptella. British speci- 

 mens would, as a rule, seem to be strongly fasciate in the 5 ; in the 

 $ the fascia is not so broad nor so distinct, and is sometimes (rarely) 

 broken into opposite spots (Durrant). Bankes notes the " white- 

 spotted or fasciated form," taken at Purbeck, as apparently larger than 

 the " unicolorous insect from the Sussex downs." An extensive series, 

 bred by Wilkinson at Scarborough, is exceedingly variable, some 

 specimens having only the single spot on the inner margin, others 

 having also a costal spot, whilst in some the two spots are united to 

 form a rather broad fascia (Stainton). Porritt notes that Wilkinson 

 mistook this " spotted " form for X. lieadleyella. 



COMPARISON OF NEPTICULA EUREMA AND N. CRYPTELLA. X. cryptella 

 was described from specimens without pale spots, but fine specimens 

 usually have a pale obscure triangular spot on the dorsuni before the 

 tornus. X. cryptella is, as a rule, a larger and more elongate species 

 than X. eurema. It seems probable that Stainton had both species 

 before him when writing the description in the Manual, ii., p. 432, 

 for he remarked " sometimes with indications of pale opposite spots 

 beyond the middle" (Durrant). Probably these were Wilkinson's 

 specimens (Intell., iv., p. 102). Durrant says that " at present he is not 



