Ephemera 26 : 1-9 (9 pages)

On the genus Einfeldia Kieffer from France. Description of E. aberlencii sp. n. from French Guiana with emendation of four recently described species from continental France (Diptera, Chironomidae)

by Joel Moubayed ✻ & Peter H. Langton ✻✻

✻ Freshwater & Marine Biology
10 rue des Fenouils, 34070 Montpellier, France
chirojmb@gmail.fr

✻✻ University Museum of Zoology Cambridge
Downing Street, Cambridge, UK CB2 3EJ; Address for correspondence: 16 Irish Society Court, Coleraine, Co. Derry, BT52 IGX, Northern Ireland

  • icône inbox Reçu le 21 mars 2024
  • icône check_circle Accepté le 22 juillet 2024
  • icône library_books Publié le 2 janvier 2025
Diptera Chironomidae Einfeldia aberlencii sp. n. French Guiana new combinations of four species France

Espèces décrites :

French translation

Sur le genre Einfeldia Kieffer en France. I. Description d’E. aberlencii sp. n. de Guyane française et nouvelle combinaison binominale pour quatre espèces récemment décrites de France continentale (Diptera, Chironomidae)

Diptera Chironomidae Einfeldia aberlencii sp. n. Guyane française correction binominale pour 4 espèces France

Male adult of Einfeldia aberlencii sp. n. is described based on adults captured over the canopy and along the undergrowth of aquatic habitats in the primary rainforest of Petit-Saut in French Guiana. The distinguishing characters (antero-median part of frontal area with a characteristic concavity, frontal tubercles conical, well developed; antenna 11-segmented, 1235 µm long, terminal segment 850 µm long, AR 2.21; apex of femur and base of tibia of PI with dark spots, pulvilli bilobed; tergites II-VI with semicircular pigmentation medially; tergites VII-VIII fused; tergite IX with two median ridges located between the rows of dorsal setae and the anal bands; anal point slender, parallel-sided; basal portion of superior volsella densely covered with short setae, caudo-lateral side with 2 characteristic curved setae, 1 dorsal, 1 ventral; dorsal setae on inferior volsella short, located apically; gonostylus swollen medially, abruptly narrowing distally) easily separate the new species from all other congeners. In total, 6 Einfeldia species are reported from France, which include E. pagana (Meigen, 1838), E. palaearctica Ashe, 1990 and 4 recently described species, which were wrongly assigned to the genus Polypedilum subgenus Uresipedilum: P. alixae Moubayed & Langton, 2022; P. bernardae Moubayed-Breil, 2020; P. claudei Moubayed-Breil, 2020; P. tissoti Moubayed-Breil & Langton, 2020. At present, 4 new combinations are proposed to the 4 previously cited species, which are considered henceforth as belonging to the genus Einfeldia, namely: E. alixae (Moubayed & Langton, 2022); E. bernardae (Moubayed-Breil, 2020); E. claudei (Moubayed-Breil, 2020) and E. tissoti (Moubayed-Breil & Langton, 2020). Consequently, a total of 7 Einfeldia species are currently known from France, including 6 already reported from continental France and 1 (E. aberlencii sp. n.) from French Guiana. Remarks on the taxonomic position with comments on the ecology of the new species are given.

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