A large material of Chironomidae composed of adults, pupae, and larvae, collected in the upper basin of the River Assi (= River Orontes, north-eastern Lebanon), revealed the presence of a new Heleniella species. In this paper, only the male adult of H. assiana sp. n. is diagnosed and described. Distinctive pertinent specific characters include in particular: number and distribution pattern of setae on postnotum; unusual shape of virga, sternapodeme, phallapodeme and inferior volsella. At present, two Heleniella species were known from Lebanon, namely H. ornaticollis (Edwards, 1929) and H. serratosioi Ringe, 1976. Consequently, the description of the new species increases the total number of species to three from this country.
Ephemera 27 : 81-88 (8 pages)
Description of Heleniella assiana sp. n. from the upper basin of the River Assi in Lebanon (Diptera, Chironomidae)
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Reçu le 27 avril 2026 -
Accepté le 17 juin 2026 -
Publié le 2 juillet 2026
taxonomy
new species
Heleniella ornaticollis (Edwards
1929)
conservation
Espèces décrites :
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Heleniella assiana
Moubayed, 2026
LSIDD96AED31-8833-4FB5-B100-8FE27C275D73
French translation
Description d’Heleniella assiana sp. n. du bassin supérieur de la rivière Assi au Liban (Diptera, Chironomidae)
taxonomie
nouvelle espèce
Heleniella ornaticollis (Edwards
1929)
conservation
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