Renocera, Hendel, 1900

Vikhrev, Nikita E. & Yanbulat, Maria O., 2022, Notes on the Palaearctic fauna of Renocera (Diptera, Sciomyzidae), Amurian Zoological Journal XIV (4), pp. 708-714 : 713-714

Key to Palaearctic Renocera ♂ ♀

1. f2 with median a seta. Prosternum hairy. Aristal hairs much shorter than half width of postpedicel. Wing with brownish tint apart from darkened crossveins. Orbital setae 2 or 1. (Cheeks narrower than half width of eye. Frons matte except for medi- an stripe. Postpedicel usually partly dirtybrown darkened.) ♂: sternite 5 horseshoeshaped, posterior halves covered with spinulose setulae ( Fig. 12 ). Posterior surstylus well developed, often exposed in pinned, dry specimens (as in Fig. 11 ), it is round- ed, with antero-ventrally directed apical hook. Apical half f3 with distinct though rather weak v setae. ♀: v setae on f3 absent.......................... striata Meigen

— f2 without median a seta. Prosternum bare. Longest aristal hairs distinctly longer than half width of postpedicel............... 2

2. Postpedicel black in anterior half ( Fig. 1 ). Anterior third of frons shining. Cheeks narrower than half width of eye ( Fig. 1 ). One pair of orbital setae present. Apical half of f3 without v setae in both sexes. ♂: sternite 5 mostly membranose, but in posterior half with a pair of sclerotize tubercles of ellipsoid shape which are densely covered with spinulose setulae ( Fig. 8 )........................... pallida Fallen

— Antenna entirely yellow ( Fig. 4 ). Frons matte except for median stripe. Cheeks wider than half width of eye ( Fig. 4 ). Two pairs of orbital setae. Apical half of f3 with short but strong v setae in both sexes, in female these setae even stronger. ♂: sternite 5 large, deeply emarginated posteriorly, covered with sparse fine setulae ( Fig. 9 ), it is usually well recognized in pinned, dry specimens (as in Fig. 4 )............................................ stroblii Hendel

Figures

Figs. 4–12. Renocera: 4 — male R. stroblii, arrow indicates sternite 5 visible on intact specimen; 5–7, surstylus of R. stroblii: 5 — drawing (from Vala 1989: fig. 101e), 6 — outside view, 7 — the same sternite, inside view; 8–10, sternite 5 of Renocera (from Vala 1989: figs. 100–101): 8 — R. pallida, 9 — R. stroblii, 10 — R. striata; 11–12, R. striata: 11 — abdomen in lateral view (bended surstylus is indicated by an arrow), lateral view, 12 — abdomen in ventral view (horseshoe-shaped sternite 5 is indicated by an arrow) Рис. 4–12. Renocera: 4 — самец R. stroblii, стреΛка указывает на стернит 5, хорошо опреΑеΛимый на сухом экземпΛяре; 5–7, сурстиΛь R. stroblii: 5 — рисунок из Vala (1989: fig. 101e), 6 — фото, виΑ снаружи, 7 — тот же сурстиΛь, виΑ изнутри; 8–10, стернит 5 Renocera из Vala (1989: figs. 100–101): 8 — R. pallida, 9 — R. stroblii, 10 — R. striata; 11–12, R. striata: 11 — брюшко сбоку (на отогнутый сурстиΛь указывает стреΛка), 12 — брюшко снизу (на стернит 5 в форме поΑковы указывает стреΛка)

Fig. 1. Renocera pallida, copula Рис. 1. Renocera pallida, копуΛирующая пара