Dytomyia lutescens ( Vanschuytbroeck, 1952 )

Ya., Igor, 2021, Discovery of Dytomyia Bickel (Diptera: Dolichopodidae) on the African continent with description of a new peculiar species from Kenya, Israel Journal of Entomology (Oxford, England) 51 (6), pp. 85-91 : 90

Dytomyia lutescens ( Vanschuytbroeck, 1952)

( Fig. 1G)

Chrysosoma lutescens Vanschuytbroeck, 1952: 139 . Type locality: Madagascar: Ambila-Lemaitso. Ethiosciapus lutescens : Bickel, 1994: 142

Bickeliolus lutescens : Grichanov, 1998: 82

Dytomyia lutescens : Grichanov, 1999: 114.

Diagnosis: Scape yellow, other antennomeres dark brown dorsally; postpedicel triangular, with rounded apex; legs mostly yellow; fore coxa yellow, black at extreme base, with yellow setae; mid and hind coxae black; femora almost bare; fore tibia with 1 dorsal seta at base, 1 long posterior seta at basal ⅓; mid tibia with 1 dorsal, 2 anterior setae; hind tibia with 1 anterodorsal, 2 posterodorsal, 1 anterior setae; fore basitarsus enlarged and ventrally flattened, with pile of hairs; tarsomere 5 of the same tarsus black, slightly flattened; hind basitarsus with 1 short basoventral seta; cross-vein dm–m nearly straight, slightly sinuous, approximately equal to fork-handle M; distal part of M 4 approximately ⅔ as long as dm–m; alula developed; anal angle acute; hypopygial foramen basal in position and covered by cap-like sternum 8 ( Fig. 1G); surstylus broad, flattened and fused to epandrium, with long setae and finger-like process; outer lobe of male cercus yellow, much longer than epandrium, approximately 5× as long as wide at base, 5× as long as basoventral lobe, slightly enlarged at apex, with spade-like ventral projection at basal ⅓; with rows of long yellow setae, especially long at apex; adjacent cercal lobe straight, with row of strong setae; very short ventral section of cercus arising basally and freely articulated with main cercal body, consisting of 2 free outer arms with few setae and short subtriangular arm with few setae, which fused with the same arm of another cercus; 2 short epandrial lobes, each with 1 long and 1 short apical setae; 1 short epandrial seta.

Material examined: Madagascar: 1♂ Foulpointe [=Mahavelona], xi.1995, plage, bac jaune [beach, yellow pan trap], A. Pauly [ ZIN, ex coll. RBINS] .

Distribution: Madagascar, St Helena.