Planetella muranica Ševčík & Hippa, 2023

Ševčík, Jan, Hippa, Heikki, Burdíková, Nikola, Sopuch, Kryštof, Skuhravá, Marcela & Bruun, Hans Henrik, 2023, Integrative taxonomy of Central European Planetella (Diptera: Cecidomyiidae) indicates high species diversity, intraspecific variation and low host specificity, Acta Entomologica Musei Nationalis Pragae 63 (2), pp. 413-450 : 435

publication ID	https://doi.org/ 10.37520/aemnp.2023.026
publication LSID	lsid:zoobank.org:pub:E961B014-4A0D-482B-A005-6D7B58D60B03
persistent identifier	https://treatment.plazi.org/id/03DA5107-FFC4-FFE2-7B80-FE1AFB373D95
treatment provided by	Felipe
scientific name	Planetella muranica Ševčík & Hippa
status	sp. nov.

Treatment

Planetella muranica Ševčík & Hippa sp. nov.

( Figs 11D,E,F,G View Fig , 14F View Fig )

Type material. HOLOTYPE: J, Slovakia, Muránska planina National Park, Červená skala env., Trsteník valley, 16.vi.–14.vii.2016, Malaise trap over Carex rostrata and Carex umbrosa , leg. J. Roháček & J. Ševčík, specimen after DNA extraction, prepared on slide, No. PLA 2 (coll. NMPC). PARA- TYPEs: 4JJ (two of them after DNA extraction, No. PLA 2b, prepared on slide, PLA 2c in ethanol), the same locality and Malaise trap, 12.v.–16. vi.2016 (coll. SMOC, JSL-OUC); 1 J in ethanol (after DNA extraction, No. PLA 40), the same locality, 10.vi.–13.vii.2021, emergence trap 3 over Carex umbrosa (coll. JSL-OUC); 1 ♀ in ethanol (after DNA extraction, No. PLA 45), the same locality, 10.vi.–13.vii.2021, emergence trap 2 over Carex rostrata (coll. JSL-OUC).

DNA sequences. DNA sequences (COI barcode region, 28S, 16S) taken from the holotype (No. PLA 2) are deposited in GenBank. Their Accession numbers are provided in Table 1.

Diagnosis. A large, dark brown species. Antenna with 14 binodose flagellomeres. Eyes with narrow eye-bridge. Terminalia with a broad, pear-shaped hypoproct, and gonostylus relatively long, as long as gonocoxite.

Etymology. The species name is derived from the Muránska planina National Park in Slovakia, where all the type specimens were collected; adjective.

Description. Male. Wing length 6.8 mm (paratype PLA2c). Overall body coloration mostly glossy dark brown, with legs and halters brownish.

Head. Eyes with a narrow, membranous eye-bridge, ommatidia not touching. Antennal flagellum with 14 binodal tricircumfilial flagellomeres, the apical flagellomere (F14) only slightly shorter and less constricted than F13. Flagellomere 1 ( Fig. 14F View Fig ) about 3.6 times as long as broad, slightly longer and more cylindrical than the other flagellomeres, flagellomere 4 ( Fig. 14F View Fig ) about 3.3 times as long as broad. Maxillary palpus with 3 palpomeres, subequal in length.

Thorax uniformly brown to blackish brown. Scutum distinctly produced above the head, without distinct longitudinal stripes. Scutum anteriorly and scutellum laterally with black lining.

Wing elongated, about 2.4 times as long as broad (paratype PLA2c). Veins C, R 1, R 5 and Cu-stem dark and distinct. R 1 joining C in the middle of wing. R 5 reaching C beyond wing apex. Rs missing. M 4 light and indistinct. CuA with dark stem and bent downwards.

Legs with tarsal claws slightly longer than maximum tarsal diameter, gradually bent. Empodia reaching to about half the length of claw.

Abdomen dark brown, with a light oval transverse spot on each side of the tergite (T2 to T7).

Terminalia ( Figs 11D,E View Fig ). Gonocoxite about 2.5 times as long as broad, mediobasally with a distinct rounded lobe. Gonostylus relatively long and narrow, slightly broader subapically, 4.2 times as long as broad, almost as long as gonocoxite, apically with a rounded, transversely grooved dark lobe, pointed medially. Cerci short, rounded, basally fused. Hypoproct broad, pear-shaped, distally convex, with a shallow depression. Aedeagus narrow, elongate, subtriangular, slightly longer than hypoproct. Gonocoxal apodemes strongly sclerotized, medially fused.

Female (associated with holotype male by COI sequence). Similar to male, with slightly more robust abdomen. Antennae shorter and thinner than in male, about 1.5 times as long as thorax. Eyes with a narrow, membranous eye-bridge, without any ommatidia connected. Abdomen dark brown, with light narrow oval spot on each side of tergites 2 to 7. Cercus one-segmented, pointed apically, suboval in shape, about twice as long as broad.

Variation. The paratype No. PLA2b differs slightly from the holotype and the other paratypes in the narrower shape of hypoproct ( Figs 11D,E View Fig (holotype) versus F,G (paratype )). The COI barcode sequence of this paratype and the holotype are 100% identical, confirming that they belong to the same species.

Biology. This species is associated with Carex rostrata and Carex umbrosa , on which the type material was collected. The galls remain unknown.

Discussion. This is a remarkable species, characterized by the dark coloration, 14 flagellomeres, eyes with a narrow eye-bridge and details on the male terminalia. Its closest relative in terms of K2P genetic distance ( Tab. 3), as well as in the phylogenetic tree ( Fig. 15), is P. thermophila sp. nov., with 5.2% distance, while all the other Planetella species are more than 8% distant.