Trichocoelina aemula Vilkamaa & Menzel 2019, sp. n.

• Main Authors: Vilkamaa, Pekka, Menzel, Frank
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Sciaridae; Trichocoelina; Trichocoelina aemula; Lapponia; Taimyr
• Online Access: https://doi.org/10.5281/zenodo.4340386; http://treatment.plazi.org/id/A703878CA95EFFABFF26FF0D9BF5090E

Trichocoelina aemula sp. n. Figs 1 B, 3 A, 18 A Material studied . Holotype male . RUSSIA, Krasnodarsk region, Taimyr Nature Reserve, Aru-Mas, 72.50°N, 101.94°E, pan trap, 9–20.VII.2010, A. Barkalov (in ISEA). Paratypes . RUSSIA, same data as holotype, 4 males (in ISEA, MZH, NHMO, SDEI); FINLAND, Li (Lapponia inarensis) (grid 7759292:3539670), sandy river bank, pitfall trap, 13.VI–13.VII.2016, J. Salmela, 3 males (in MZH, PJSR, SDEI). Description . Male. Head . Face and antenna concolorous brown, maxillary palpus pale yellowish. Eye bridge 2–3 facets wide. Face with 13–15 setae. Clypeus with 1–3 setae. Maxillary palpus with 3 segments, 1 st segment as long as or longer than 3 rd segment, 2 nd segment shortest; 1 st segment with 1–2 setae, with dorsal patch of sensilla; surface of antennal flagellomeres smooth, body of 4 th antennal flagellomere 1.7–2.0x as long as wide, the neck shorter than broad, the longest setae shorter than the width of flagellomere. Thorax . Brown, setae pale. Anterior pronotum with 4–6 setae. Proepisternum with 3–10 setae. Scutellum with 4 longer and some short and fine setae. Wing . Fumose. Length 2.0– 2.2 mm. Width/length 0.40. Anal lobe weak. Veins distinct. c/w 0.65–0.75. R 1 /R 0.6–0.7. stM shorter than fork of M. r-m as long as bM or longer, bM non-setose, r-m with 1–4 setae. Halter yellow. Legs . Yellow, coxal setae pale. Fore tibial organ forming a rather small patch in depression. Fore tibial spur longer than the tibial width. Abdomen . Pale brown, setae pale, short and fine. Hypopygium (Fig. 1 B). Brown, as abdomen. Intergonocoxal area long, with two short, distinctly separate setose lobes (Fig. 18 A). Gonocoxa broad, longer than gonostylus, medial margin basally strongly curved, with sparse and short setosity. Gonostylus (Fig 3 A) broad, laterally roundish, strongly impressed; with short setosity, with a long apical tooth, with 6–7 megasetae in the medial impression, megasetae long and slender, with distinct basal bodies; with 1 well-differentiated whiplash seta on ventromedial ...