A new species of Hydrobaenus Fries, 1830 (Diptera, Chironomidae) from Algeria

Abstract

Hydrobaenus olfa n. sp. from Algeria is described and illustrated as male, pupal exuviae and larva. The new species is assigned to the genus Hydrobaenus Fries, 1830 according to morphological characters observable in all the three stages, it is easily separated from all the other known species of the genus because of the high number of anal macrosetae on anal lobe of pupa; this character state is actually unknown within all the known species of the Hydrobaenus group, whereas it is observed in other genera within Orthocladiinae as in the genus Propsilocerus Kieffer, 1923. For this reason the description of the genus Hydrobaenus must be emended. This character gives additional evidence to the phylogenetic relationships between the primitive genera of Orthocladiinae.

Characterization and diversity of macroinvertebrates of the Bouhamdane Stream (northeast of Algeria)

“…For this preliminary inventory of macroinvertebrates, the observations of the groups present in the samples coupled with their frequency of occurrence make it possible to identify taxa that can be qualified as pollution sensitive, such as Coleoptera and Trichoptera. Our results on some taxonomic groups were similar to those reported by Zerguine and Rossaro (2010), Zebsa et al (2014a, b), Khelifa et al (2016), Khelifa (2019), and. In general, the obtained faunal composition in the Bouhamdane River is similar to other Algerian rivers and lakes (Meziane et al 2020;Hassani et al 2020).…”

“…The study of the macrobenthic fauna of rivers in Algeria has been undertaken in recent decades in order to draw up an inventory as exhaustive as possible and to have knowledge of their systematics, ecology, and biogeography (Haouchine 2011). In northeast Algeria, studies on macroinvertebrates peaked in the last decade (Zerguine and Rossaro 2010;Zebsa et al 2014 a, b;Khelifa et al 2016;Khelifa 2019;, revealing an important biodiversity and endemism. The objective of this study is to characterize the structure and diversity of benthic macroinvertebrates of an understudied watercourse, Bouhamdane Stream in northeast Algeria.…”

First Annoted Checklist of Aquatic Diptera (Insecta) of Two Ramsar Sites (Ahançal and Aït Bouguemaz Rivers) at the Central High Atlas (Morocco): Families Ceratopogonidae, Chironomidae, Tipulidae, Empididae, and Tabanidae

“…Our work expands its distribution to the Central High Atlas. Te genus Hydrobaenus is Holarctic [111] and contains at least 51 species [112], inhabiting diverse habitats [113], including saline and brackish waters and lagoons [110]. Some species are cold-stenothermal, preferring oligotrophic conditions [113].…”

“…Te genus Hydrobaenus is Holarctic [111] and contains at least 51 species [112], inhabiting diverse habitats [113], including saline and brackish waters and lagoons [110]. Some species are cold-stenothermal, preferring oligotrophic conditions [113]. We collected one larva of this genus on July 07, 2020, in the highest section of Ahançal stream (A2-Taghia, 1967 m of altitude).…”

On taxonomy of Hydrobaenus Fries, 1830 (Diptera: Chironomidae: Orthocladiinae) from the Russian Far East, with a key to species

“…The reason may be the long time spent since the revision of the genus Hydrobaenus (Saether 1976) and the above mentioned monographs. In fact in the last decades new species were described, including the use of features not only of adults, but also of immature stages (Asari et al 2004;Cranston et al 2007;Makarchenko et al 2009;Makarchenko & Makarchenko 2010, 2011Zerguine & Rossaro 2010). To sum up, up to date, the genus Hydrobaenus includes at least 44 species (Ashe & O'Connor 2012).…”