Mycomyiella wangi, Gammelmo, Øivind, 2004

Gammelmo, Øivind, 2004, A review of the Afrotropical genus Mycomyiella Matile, 1973 (Diptera, Mycetophilidae, Mycomyini), with the description of six new species, Zootaxa 625, pp. 1-30 : 27-29

Mycomyiella wangi new species

( Figs 27–30 )

Type material: Holotype male, TANZANIA, Tanga region, West Usambara Mountains, Mazumbai, 26.xi.–4.xii.1990, ZMB's Tanzania Expedition, ( ZMUN). Paratypes: as for holotype except 1 male, 31.x.1990; 1 male, 31.x.–2.xi.1990; 1 male, 4.11.1990; 1 male, 12–20.xi.1990; 2 males, 29.xi.1990.

Etymology: Named after Gunnar Wang for all help and support during the present study.

Diagnostic characters: The male can be separated from all other species in the genus in having a simple, narrow, slightly curved gonostylus.

Description

Male (n=7). Total length 2.87–3.69, 3.33 mm.

Coloration: Head light brown to brown. Palpomeres and other mouthparts brown. Ocellar area dark brown. Face light yellow­brown, posterior parts of head light brown. Antennae light yellow; scape, pedicel and base of first flagellomere yellow. Antepronotum yellow. Scutum light brown to brown with 3 yellow longitudinal bands. Anepisternum and preepisternum yellow. Scutellum light brown to brown. Laterotergite light brown to brown. Mediotergite brown. Coxae yellow, femura tibiae and tarsi light brown. Tergite 1 light brown, tergite 2 yellow, with narrow brown median line and posterior brown band, tergite 3 brown, tergite 4 yellow with broad brown median line, tergite 5–6 brown, tergite 7 yellow. Sternite 1–4 yellow, sternite 5–6 yellow, with brown lateral patches, sternite 7 yellow. Terminalia light brown to brown.

Head: Head 0.50–0.55, 0.53 mm long; 0.54–0.60, 0.59 mm wide. First flagellomere about 1.5 times as long as wide; second flagellomere as long as wide. Clypeus 0.12–0.15, 0.13 mm long; with lateral and apical setae. Ocellar area 0.12–0.13, 0.13 mm wide; placed below upper margin of compound eye. Some setae in front of ocellar area. Posterolateral portion of frons densely setose; setae reaching just below ocellar area. Face bare. Mouthparts elongated. Palpomere 4 with 2–5 setae subbasally, palpomere 3 with several setae in basal two­thirds. Palpomere ratios (2–5) as: 1.00: 2.80: 3.00: 4.40.

Thorax: Total length 1.17–1.24, 1.20 mm. Scutum 0.97–1.04, 1.01 mm long; scutellum 0.13–0.18, 0.16 mm long.

Legs: Leg measurements and ratios as in Tables 4 & 5.

Wings: Wing 2,65–2.88, 2.77 mm long; 0.98–1.10, 1.04 mm wide. Sc1 missing. Sc ending in R1 slightly distally to middle of small cell. Apical part of Sc bearing 7–12, 9 macrotrichia. R4/Rs­cell 1.0 to 2.0 times as long as wide. CuA fork slightly distal to M fork. Wing measurements are given in Table 6 .

Abdomen: Length of abdomen 2.53–2.78, 2.71 mm; tergite 5 0.66–0.86, 0.75 mm wide.

Male terminalia ( Figs 27–30 ). Tergite 8 wide, with several posterolateral setae. Tergite 9 with short, bare lobes; setose medially. Gonocoxite with lateral setae; with long, narrow, bare lobes; with club­shaped, sparsely to strongly setose prolongations. Gonostylus simple, weakly curved, setose. Aedeagus of median size, covered with short setae, with strong setae subapically. Sternite 8 large, broadly rounded apically, densely setose in apical half.

Female: Unknown.

Distribution: Known from the type locality in the West Usambara Mountains in North­East Tanzania only.

Figures

FIGURES 27 – 30. Mycomyiella wangi new species. Male terminalia: 27 ventral; 28 dorsal; 29 sternite 8; 30 gonostylus.