Ephemera 27 : 41-53 (13 pages)

The genus Ochthebius in the Lebanese rivers, with additional notes on its ecology (Insecta, Coleoptera, Hydraenidae)

by Aref Dia

Faculty of Sciences, Lebanese University
Hadath, C. N. R. S. lb, B.P. 8281-11 Beirut, Lebanon
arefdia@ul.edu.lb

  • icône inbox Reçu le 12 janvier 2026
  • icône check_circle Accepté le 10 avril 2026
  • icône library_books Publié le 11 mai 2026
distribution Lebanon whole territory 14 catchments running water stagnant water new data
French translation

Le genre Ochthebius dans les rivières libanaises, avec quelques notes supplémentaires sur son écologie (Insecta, Coleoptera, Hydraenidae)

répartition Liban totalité du territoire 14 bassins versants eaux courantes eaux stagnantes citations nouvelles

The aim of the present study was to fill in the gaps in previous knowledge of the faunistics and distribution of the running water species of Ochthebius species in Lebanon, by sampling throughout the entire country. 14 catchments of the largest river systems, not previously taken into account, were studied between 1984 and 2015, including a great diversity of running waters, from springs and streamlets to lower river reaches. This faunal program was extended up to 200 stations during 35 years. At 39 sites within the range of 0 to 2100 m elevation a. s. l., 3245 samples representing 161 imagines of Ochthebius. Seven species have been determined.