52 EUCHLOE. By J. Robkr. 



fallow. E. falloui AUard (22 a). This species differs from tlie preceding in the shortened and obsolescent 



apical marking, which contrasts with the isolated and strongly developed central spot, and in the regular 

 green and v.hite bands of the underside. Flies in May in South Algiers (Biskra), extending southward to 

 Somaliland. Seasonal forms of this species have not yet been observed. 



seitzi. E. seitzi spec. nor. (20f) was caught by Dr. A. Seitz the middle of IMay at Biskra together with 



falloui. The black marginal area reaches to the 1. median vein; the hindwing is yellowish, the silvery 

 white bands of its underside are narrower and partly shorter, the green markings darker (without yellow but 

 with grey admixture), being also somewhat differently placed, and the apical marking of forewing extends 

 (as above) to the 1. median vein. This species is apparently still rarer than fol/oui. 



belia. E. belia Cr. {= crameri Btlr.) (22 a). Above white with black apical markings and black middle 



spot to forewing. Hindwing beneath silvery white with regular yellowish green markings. — The summer- 



ausonia. form ausotlia Hbn. {=^ belia Esp.) (22b) is lighter beneath, and the ground-colour of the hindwing is not 



silvery, but merelj- white. This species (apart from the local forms described below) occurs in South 



romana. Europe. France. North Africa, Asia !Muior and Armenia. — romana Calb. (22b), from Italy, forms the 



transition from belia to au^oiiia ; the dark markings above ai'e paler and the hindwing beneath has larger 



simplonia. white spots. — simplonia Fvr. {^= marchandae Hbn.) (22b), from the Wallis, Piedmont, the Pyrenees, and 



several Central Asiatic mountains, is considered a distinct species by Dr. Arnold Spuleb; large, the middle 



spot on forewing above joined to the black of costal margin, also the underside of hindwing somewhat 



differently marked; the larva is said to difier from that of belia in being dotted with black aJid in the 



kruegeri. stigmata not being edged with white. — The summer-form, kruegeri Tui: (22 b), from Sicily, has a broader 



greyish black apex to forewing, the hindwing below being siiarply marked with dark green and white. — 



//■//wfT-wc. tr in acriae Tar. (22c), likewise from Sicily and also summer- form, differs in the apex of forewing being 



strongly spotted with white and in the wiiite spots of the hindwing below being strongly developed. — 



matiitia. matutia Tio: (22c), also from Sicily, has, in contrast to the previous, only small white spots in the lilack 



apical area of forewing, the black middle spot being very large and the white spots on the hindwing 



taurica. below few in number and small. — taurica form. nor. (22 c), from the Cilician Taurus (southern Asia 



Minor), has the apex of forewing above dusted with whitish and the spots of the hindwing beneath 



iiralensis. yellowish green. — uralensis Bartel (22c), from the Ural and the Crimea, has large white si)ots on the 



pulverata. underside of the hindwing and some admixture of yellow; forms a transition to simplonia. — In pulverata 



Christ. (= daphalis Gr.-Grsh) (22c), from Transcaspia and Central Asia, the white spots in the ajiex of 



orientalis. forewing are confluent, while the hindwing beneath is green with numerous small silver-spots. — orientalis 



Brem. {= tagis Trt/bom), from North-East Siberia and Kamchatka, is smaller, "the base of wings blacker, 



below the apex of forewing is darker with distinct white longitudinal stripes before the fringe in cellules 3. 



4, 5 and 6, the hindwing is likewise darker and not so strongly dusted with yellow than in belia, being 



interrupted bj- more numerous minute white dots and streaks, especially at inner margin near base, the 



spots from apex to anal angle are united to a scarcely interrupted band, the spots before the fringes more 



prolonged"' (Bremer); Staudixgek and Rebel consider orientalis a distinct species; flies in Julj-. — Among 



odiracea. this form occurs ochracea Tri/bom as a j'ellow aberration. — At Batna (Algiers) flies, in May, a small 



form with reduced black markings on the forewing above, very broadly dark base and darkened hindwing 



(in consequence of the markings of underside shining through), the hindwing beneath very dark green with 



melano- extiemely slight yellow admixture and reduced white spots: melanochloros form. nor. — On the slopes 



dtloros. of the Darro (Andalusia) flies ab. alhambra Eibbe: forewing more pointed, the black costal spot prolonged 



am I a. ^lackwards, underside of hindwing very green, the white spots small and less numerous, sometimes 



completely wanting. — Egg elongate, tapering above, brown-yellow, finally leaden-grey, with ribbed sides. 



Larva similar to that of rardamiiiis, greenish, with 3 stripes and white stigmata: on Cruciferae, especially 



Sisymbriinn erucastrum and Barbarea vulgaris. Pupa strongly tapering at both ends, brown with small 



black dots, sometimes not developing for two years (Spuler). 



daplialis. E. daphalis Moore, from Central Kunawur, is presumably a separate species. Only the o^ known. 



Above white, forewing minutely dusted with black at costal margin and apex, a large black spot at apex 

 of cell; hindwing traversed by irregular pale green bands, with a faint apical stripe, a small spot at apex 

 of cell and minute black fringe-dots. Forewing below with blackish dusting at costal margin, the spot at 

 apex of cell with white centre, apex dusted greenish brown, minutely irrorated with silvery white: hindwing 

 yellowish brown marked with numerous large and small silvery white spots. Somewhat smaller than belia. 

 Flies at rocks in early spring (and probably a second brood in summer); not common. 



tagis. E. tagis Hbn. (22 d), from Portugal and South Spain, is very similar to belia. but the white 



spots of the underside of the hindwing are more sharply defined ; flies from February till May. — 



bellezina. bcUezina Boisd. {= bellesina />»/)., belledice Hbn.) (22 d), from South France, has on the underside of the 



