Integrative taxonomy of Central European Planetella (Diptera: Cecidomyiidae) indicates high species diversity, intraspecific variation and low host specificity
Ševčík Jan, Hippa Heikki, Burdíková Nikola, Sopuch Kryštof, Skuhravá Marcela, Bruun Hans H.
Acta Entomologica Musei Nationalis Pragae 63(2): 413-450, 2023
Published online: 30th December 2023
Views: 1748
Abstract: A first attempt is made to revise the European species of the gall midge genus
Planetella Westwood, 1840 (Diptera: Cecidomyiidae), with a focus on the fauna of
the Czech Republic, Slovakia and Denmark. A total of 19 species are recognized
based on unique DNA sequences, of which 13 are described as new to science:
Planetella adami Ševčík & Hippa sp. nov., P. aestivalis Ševčík &
Hippa sp. nov., P. antennata Ševčík & Hippa sp. nov., P. atrobrunnea
Ševčík & Hippa sp. nov., P. attilai Ševčík & Hippa sp. nov., P.
csabai Ševčík & Hippa sp. nov., P. davidi Ševčík & Hippa sp. nov.,
P. galiciensis Ševčík & Hippa sp. nov., P. hlisnikovskyi Ševčík &
Hippa sp. nov., P. muranica Ševčík & Hippa sp. nov., P. riparia Ševčík
& Hippa sp. nov., P. submontana Ševčík & Hippa sp. nov., and P.
thermophila Ševčík & Hippa sp. nov. Four previously described species are
recognized in the collected material: Planetella arenariae (Rübsaamen, 1899b),
P. fasciata (Meigen, 1818) sp. restit., P. gallarum (Rübsaamen, 1899a), and P.
granifex (Kieffer, 1898). For each of these species, DNA sequences are provided,
as well as detailed illustrations of the male terminalia and male flagellomeres.
Four additional species are represented only with larva, female or incomplete
specimens. The phylogeny of European Planetella is tentatively reconstructed
based on the combined analysis of three gene markers (28S, 16S, COI), but
without providing any new infrageneric classification. The phylogenetic
placement of the genus Planetella within the subfamily Cecidomyiinae is
reconstructed based on four gene markers (18S, 28S, 16S, COI). The monophyly of
Planetella is well supported, as well as its placement in the supertribe
Cecidomyiidi. The genera Acodiplosis Kieffer, 1895 and Putoniella Kieffer,
1896 appear as the closest relatives of Planetella. The delimitation of the
tribe Hormomyiini is discussed.
Key words: Diptera, Bibionomorpha, Cecidomyiinae, gall midges, DNA barcoding, new species, molecular markers, phylogenetic analysis, systematics, Central Europe, Palaearctic Region