Cheilosia (Taeniochilosia) vicina (Zetterstedt, 1849)

Cheilosia vicina Zetterstedt, 1849: 3175 .

Cheilosia nasutula Becker, 1894: 342 . Syn. by Lucas et al. (1995).

Cheilosia nasutula – Tóth 1986: 94.

Cheilosia vicina – Mengual et al. 2020: 26. — Żóralski & Bystrowski 2021: 26.

Remarks

Tóth (1986) reported the single known record of this species from the Caucasus; one male collected on 28 May 1975 in the Kodori valley (Greater Caucasus area). Cheilosia vicina is very similar to C. nigripes and the best difference between the two species is the pruinose frons and posterior anepisternum in C. vicina, which are shiny in C. nigripes . However, specimens of C. nigripes collected in the Caucasus have a pruinose frons and posterior anepisternum too, which makes the identification very difficult (see Differential diagnosis under C. nigripes). Since both species are morphologically more similar in the Caucasus Region than previously thought and all studied specimens belong to C. nigripes, it is very likely that the specimens of C. vicina reported by Tóth belong to C. nigripes . The presence of this species in the Caucasus needs further evidence.

Genetics

We included several DNA barcodes of C. vicina from Europe in our NJ tree, which cluster with high support (BS = 99.9%) with the barcodes of C. sahlbergi, C. impudens, and C. nigripes .

Distribution

Europe, European parts of Russia.