Material. Ukraine: IF: Mochary, sweeping, 26.05.2014, 1 ♀ (Varga) (ZISK).

Diagnosis. This species is characterized by the irregularly granulate metasoma (as on fig. 1, 5); the two basal antennal segments with numerous rows of sensillae (fig. 1, 11); the malar space which is about 0.5 × length of basal width of mandible; the black face and upper hind corner of pronotum; the brownish tegulae; the ovipositor which is about 1.8 × length of hind tibia, with simply tapered at apex upper valve (fig. 1, 7). Male is distinguisheble by the entirely yellow face and clypeus, the narrow and black malar space (as on fig. 1, 2), the black tegulae and alongate area superomedia.

Remarks. Delomerista species look rather like Scambus (Ephialtini), but have simple fore tarsal claws (without basal lobe); propodeum with a more-or-less well defined area superomedia; more finely sculptured, matt metasoma; yellow malar space and mandibles (at least basally).

Flight period in Carpathians. May.