Megaselia dravedskovensis, Henry & Bøggild, 2021

Henry, R. & Bøggild, Esben, 2021, Nineteen new species of Megaselia Rondani (Diptera, Phoridae) from Denmark, Zootaxa 4975 (2), pp. 306-342 : 310-313

Megaselia dravedskovensis n. sp.

( Figs 35–46 )

Diagnosis. In the key of Lundbeck (1922) to Group IV it runs to couplet 30 lead 2 or couplet 45 lead 2, but both options differ in their hypopygia. In the key to the males of species from the British Isles ( Disney, 1989) it runs to couplet 143 lead 1, but is immediately distinguished by its yellow legs and other details. In the keys of Schmitz & Beyer (1965) for Abteilung IV, Zweite Reihe it will run to couplets 66, 85 or 97, but differs from the species of these couplets in terms of the combination of their yellow legs, differing hypopygia and other details. It fails to run down in keys for the rest of the world’s fauna and subsequent additions.

Description. Male. Frons as Figs 35 & 36 and with the very fine microtrichia restricted to the edges and adjacent to the median furrow. Cheek with 3 bristles and jowl with 2 that are longer and more robust. Postpedicels, with a few large SPS vesicles, palps and proboscis as Fig. 37 . Thorax as Fig. 38 , with 3 notopleural bristles and no cleft in front of these; mesopleuron with hairs; and scutellum with an anterior pair of small hairs and a posterior pair of bristles. Abdominal tergites brown with fine hairs, but longer more robust hairs at rear of T6 ( Fig. 39 ). Venter gray, and with hairs on segments 3–6. Hypopygium as Figs 39–42 , the right hypandrial lobe being vestigial. Legs yellow. Fore tarsus ( Fig. 43 ) with posterodorsal hair palisade on segments 1–5. Dorsal hair palisade of mid tibia extends about 0.8 times its length ( Fig. 44 ). Hind femur as Fig. 45 . Hind tibia with about 10 differentiated posterodorsal hairs, the first 3–4 being fine, without anterodorsals, and spinules of apical combs simple. Wings ( Fig. 46 ) 1.85 mm long. Costal index 0.46. Costal ratios 3.4:2.5:1 Costal cilia (of section 3) 0.18 mm long. Hair at base of vein 3 0.08 mm long. With 3 axillary bristles, the outermost being 0.13 mm long. Sc not reaching R1. Haltere knob pale brownish.

Type material. Holotype male, DENMARK, DK SJ, Draved Skov , 17.V.–8.VI.2014, Esben Bøggild ( UCMZ — 8–187).

Etymology. Named after the type locality.

Figures

FIGURES 35–46. Megaselia dravedskovensis n. sp. male. 35, frons; 36, detail of frons with lack of microtrichia; 37, postpedicels, palp and proboscis; 38, left face of thorax; 39–42, hypopygium; 43, front tarsus; 44, mid tibia and basitarsus; 45, hind femur; 46, wing.