Metachrostis griseimargo (Warren, 1912)

(Figs. 8, 26)

Leptosia griseimargo Warren, 1912, Novitates Zoologicae 19: 36 (Type-locality: Algeria [Holotype: BMNH, London]).

Material examined. 1 male, Gafsa (ex coll. Gr. Prince Nikolaj Mikhajlovich), prep. 0 0 50 Matov; 1 larva, Gafsa, 12.v.1909 [coll. ZISP].

Diagnosis. M. griseimargo can be distinguished from allied species ( M. velox, M. velocior, M. sefidi, M. djakonovi) by the yellow tinting to its wing coloration, the trapezoidal shape of the 8th tergite of the male, and the apically constricted valva.

Description. Adult (Fig. 8). Wingspan 18 mm. Head and body yellowish-ochreous. Wing coloration yellowish-ochreous with waved grey line along outer margin. Basal and medial lines black, submarginal line dark brown with wide diffused, greyish-yellow border on inner side. Subterminal field between postmedial and submarginal lines with brown-rufous dentate band, broken in costal part of hindwing. Orbicular spot yellowish-ochreous with wide black border; reniform spot dark brown. Tergite 8th of male is trapezoid in shape. In male genitalia (Fig. 26) valva wide with constriction apically, ventral margin slightly constricted medially. Proximal extension of the aedeagus narrow, short, rounded-trapezoid. Female not examined.

Distribution. North Africa (Algeria, Egypt, Morocco). The status of this taxon requires further study.