Tetragoneura

Polevoi, Alexei & Jakovlev, Jevgeni, 2011, A review of the European species of the genus Tetragoneura Winnertz (Diptera: Mycetophilidae), Zootaxa 3062, pp. 1-12 : 10

publication ID

https://doi.org/ 10.5281/zenodo.207042

DOI

https://doi.org/10.5281/zenodo.6187682

persistent identifier

https://treatment.plazi.org/id/03838794-9E09-FFB6-FF35-95B60AADF970

treatment provided by

Plazi

scientific name

Tetragoneura
status

 

Key to European species of Tetragoneura View in CoL View at ENA

1. R4 and small cell absent. Sensory organ on dorsal side of male mid tibia present. Mid tibia in male with one spur. Tergite 9 at least half as high as gonocoxites, cerci reduced.............................................................. 2

- R4 normally developed forming elongated small cell (small cell may be reduced or even absent in one or both wings in T.sylvatica View in CoL ). Sensory organ on dorsal side of male mid tibia not developed. Mid tibia in male with two spurs. Tergite 9 not higher than 1/3 of gonocoxites, mostly as a narrow transverse stripe, cerci well developed.................................. 3

2. Gonostylus relatively short with apical hook. Tergite 9 with submedian appendages ( Fig. 1 View FIGURE 1 : A–C). Female terminalia as in Fig. 3 View FIGURE 3 A, B................................................................... Tetragoneura ambigua Grzegorzek View in CoL

- Gonostylus elongated, angled the middle. Tergite 9 without submedian appendages ( Fig. 1 View FIGURE 1 : D–F)................................................................................................... Tetragoneura pudogensis View in CoL sp. n.

3. Tergite 9 divided into two separate sclerites. Gonostylus attenuated to apex, with curved seta at base ( Fig. 2 View FIGURE 2 : E, F). Female terminalia as in Fig. 3 View FIGURE 3 : C, D....................................................... Tetragoneura ruuhijarvii View in CoL sp. n.

- Tergite 9 integrate. Gonostylys different.................................................................... 4

4. Gonostilus bilobed ( Fig. 2 View FIGURE 2 : C, D)................................................ Tetragoneura obirata Plassmann View in CoL

- Gonostylus ovate with strongly sclerotised, blade-like sub-apical process ( Fig. 2 View FIGURE 2 : A, B). Female terminalia as in Fig. 3 View FIGURE 3 : E, E.............................................................................. Tetragoneura sylvatica Curtis View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Mycetophilidae

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