Hyadina nigricornis Frey, 1930

Stuke, Jens-Hermann, 2024, An identification key for the European species of Hyadina Haliday and a new interpretation of Hyadina vernalis (Robineau-Desvoidy), Spixiana 47 (1), pp. 49-62 : 56

publication ID	https://doi.org/10.5281/zenodo.16898798
DOI	https://doi.org/10.5281/zenodo.16898823
persistent identifier	https://treatment.plazi.org/id/038487E3-AB16-0B37-FCD9-FDD3E207FAC0
treatment provided by	Felipe
scientific name	Hyadina nigricornis Frey, 1930
status

Treatment

Hyadina nigricornis Frey, 1930 View in CoL

Hyadina nigricornis Frey 1930: 92 View in CoL ; type-locality: “in Terijoki (Ik) bei Ollila auf einer feuchtigeren Niederung zwischen den Sanddünen” [ Russia]; HT 3 [MZH, Mathis & Zatwarnicki 1995].

Hyadina nigrifacies Zatwarnicki 1996: 121 View in CoL , misspelling.

Diagnosis. This species is recognised at once by its black appearance ( Figs 1,2 View Figs 1-4 ) and the normally developed R 2+3 ( Fig. 1 View Figs 1-4 ). Terminalia not illustrated to date. No material examined by the author.

Distribution. Hyadina nigricornis has been caught only three times: The male holotype was collected in Zelenogorsk (Saint Petersburg, Russia), Dahl (1966) reported one specimen from Halltorp ( Sweden) and Zatwarnicki & Andersen (2023) reported one specimen from Norway. Records of Zatwarnicki (1991) are misidentified and belong to H. vockerothi (Zatwarnicki 1996) .

Biology. The two records are from May and August. The male holotype was collected at a wet dune valley close to the sea.

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Diptera
Family	Ephydridae
Genus	Hyadina