Tanytarsus chinyensis
Creators: name: Giłka, Wojciech
name: Paasivirta, Lauri
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Tanytarsus
Tanytarsus chinyensis

description: Key to males of European species of the Tanytarsus chinyensis group
1. Digitus with apical pear-shaped lobe (Figs 19–21) ...................................................................................................... 2
-. Digitus without apical pear-shaped lobe (Figs 28–31) ................................................................................................ 4
2. Wing membrane covered with macrotrichia apically (Fig. 3); hypopygial anal point with strongly elongated narrow tip (Figs 15–18); inferior volsella with transversally cut apex (Fig. 27) ........................................... T. salmelai sp. n.
-. Wing membrane covered with macrotrichia on almost entire area (Figs 1, 2); hypopygial anal point with short lance- olate or broadly rounded tip (Figs 5–14); inferior volsella with widely rounded apex (Figs 25, 26) ......................... 3
3. Anal tergite bearing median setae, basilateral setae absent; anal point lanceolate (Figs 5–9); pear-shaped apical lobe of digitus c. 3 times shorter than superior volsella (Fig. 19); inner margin of coxite above median volsella concave (Fig. 22) ....................................................................................................................................................... T. brundini
-. Anal tergite bearing basilateral setae, median setae absent; anal point broadly rounded (Figs 10–14); pear-shaped apical lobe of digitus c. 2 times shorter than superior volsella (Fig. 20); inner margin of coxite above median volsella straight (Fig. 23) ....................................................................................................................................... T. curticornis
4. Superior volsella circular, digitus parallel-sided with slightly swollen rounded apex (Fig. 30) ............. T. heusdensis
-. Superior volsella heart-shaped, digitus thumb-like tapering to blunt apex (Figs 28, 29, 31) ...................................... 5
5. Digitus-seta located on enlarged projection under anteromedian part of superior volsella, posteromedian lobe of superior volsella never hook-shaped (Fig. 31) ........................................................................................... T. palettaris
-. Digitus-seta located on cylindrical tubercle at base of digitus, posteromedian lobe of superior volsella hook-shaped (Figs 28, 29) ................................................................................................................................................................. 6
6. Hypopygial anal point acute ....................................................................................... T. cretensis (Reiss 1987: fig. 1)
-. Hypopygial anal point blunt ..................................................................................... T. chinyensis (Reiss 1987: fig. 2)
description: Published as part of Giłka, Wojciech & Paasivirta, Lauri, 2009, Evaluation of diagnostic characters of the Tanytarsus chinyensis group (Diptera: Chironomidae), with description of a new species from Lapland, pp. 31-42 in Zootaxa 2197 on page 41, DOI: 10.5281/zenodo.189527