Lycoriella tundrae, Menzel & Vilkamaa, 2021

Menzel, Frank & Vilkamaa, Pekka, 2021, New species and records of Lycoriella Frey (Diptera, Sciaridae) from the Holarctic region, Zootaxa 5072 (6), pp. 501-530 : 519-522

Lycoriella tundrae sp. n.

Figs 10B , 11B , 13F , 14D

Material studied. Holotype male. RUSSIA, Krasnoyarsk region, Taimyr Peninsula, on River Zakharova Rassokha , 72.70°N, 101.08°E, pan trap, 1–10.VII.2011, A. Barkalov (in ISEA) . Paratype. RUSSIA, Krasnoyarsk region, Taimyr Nature Reserve, Aru-Mas , 72.50°N, 101.94°E, pan trap, 9–20.VII.2010, A. Barkalov (in MZH, http:// id.luomus.fi/GE.1823) .

Description. Male. Head. Face and antenna concolorous brown, maxillary palpus pale brown. Eye bridge 2–3 facets wide. Face with 28–31 setae. Clypeus with 2–3 setae. Maxillary palpus with 3 segments, 1 st and 3 rd segments subequal in length, 2 nd segment shortest; 1 st segment with 2–5 setae, with deep dorsal pit with sensilla; surface of antennal flagellomeres smooth, body of 4 th antennal flagellomere 1.5–1.6x as long as wide, neck shorter than wide, longest setae shorter than width of flagellomere. Thorax. Brown; setae pale.Anterior pronotum with 5–7 setae. Proepisternum with 5–6 setae. Scutellum with 2 moderately long and some short and fine setae. Wing. Fumose. Length 1.4–1.5 mm. Width/length 0.45. Anal lobe small. Veins distinct, except for stM. c/w 0.65–0.70. R1/R 0.75– 0.90. stM shorter than fork of M. bM longer than r-m. stCuA shortest. bM and r-m non-setose. Halter yellow. Legs. Pale brown; setae pale. Fore tibial organ forming small indistinct patch of setae in poorly demarcated depression. Fore tibial spur shorter than apical width of tibia. Abdomen. Pale brown; setae pale and short. Hypopygium ( Fig. 10B ). Brown, like abdomen. Intergonocoxal area ( Fig. 14D ) moderately long, with wide setose lobe. Gonocoxa wide, longer than gonostylus, with sparse, rather long and fine setosity. Gonostylus ( Fig. 11B ) widest basally, strongly tapered towards apex, slightly impressed medially; densely setose apically, with strong apical tooth, with 4–5 long and narrow medial megasetae on basal bodies on apical third of gonostylus; with long whip-lash seta in the middle. Tegmen ( Fig. 13F ) about as long as wide, smoothly curved apically and laterally, weakly sclerotized, with some small teeth basolaterally, apodemes strongly sclerotized, with area of small aedeagal teeth. Aedeagal apodeme short and strong.

BIN. Unknown.

Discussion. See under Lycoriella eurystylata sp. n., L. jakovlevi sp. n. and L. taimyrensis sp. n.

Etymology. The species is named after the habitat, arctic tundra, where the specimens were collected.

Figures

FIGURE 10. Hypopygium, ventral. A. Lycoriella taimyrensis sp. n. (holotype) B. L. tundrae sp. n. (holotype). Scale 0.1 mm.

FIGURE 11. Gonostylus, ventral. A. Lycoriella taimyrensis sp. n. (holotype) B. L. tundrae sp. n. (holotype). Scale 0.1 mm.

FIGURE 13. Tegmen, ventral. A. Lycoriella eurystylata sp. n. (holotype). B. L. acutostylia Mohrig & Menzel, 1990 (from Finland, Sadinvaara). C. Lycoriella jakovlevi sp. n. (paratype). D. L. kinbasketi sp. n. (holotype). E. L. taimyrensis sp. n. (holotype). F. L. tundrae sp. n. (holotype). Scale 0.1 mm.

FIGURE 14. Intergonocoxal area, ventral. A. Lycoriella acutostylia Mohrig & Menzel, 1990 (from Finland, Matinjärvi). B. L. jakovlevi sp. n. (holotype). C. L. kinbasketi sp. n. (holotype). D. L. tundrae sp. n. (holotype). Scale 0.1 mm.