Two new species and new records of the genus Parachironomus Lenz, 1921 (Diptera, Chironomidae) from northern Russia

Abstract

Two new species of the genus Parachironomus Lenz, P. aquilonis sp. n. from the northern Urals and P. khatyrka sp. n. from the Russian Far East, are described and figured based on the morphology of the adult males. Adult males of P. hazelriggi Spies, 2000 and P. subalpinus (Goetghebuer, 1931) are redescribed and illustrated; both species are recorded for the first time from Russia, P. hazelriggi is new for the Palaearctic region.

New species, a new combination, and DNA barcodes of Parachironomus Lenz, 1921 (Diptera, Chironomidae)

“…Subsequently, the genus was studied by a number of authors in different life stages and geographical areas ( Edwards 1929 ; Townes 1945 ; Cranston et al 1989 ; Sæther and Spies 2013 ). Larvae of Parachironomus can be found in a variety of habitats, such as standing and flowing waters, soft sediments, or within aquatic macrophytes, while others are endo- or ectoparasites on snails ( Orel 2017 ). Among the Harnischia generic group, members of Parachironomus can separated from the similar genus Demicryptochironomus Lenz by the extended superior volsella with several distal setae always arising from distinct pits, and the inferior volsella with a pointed or blunt caudal projection ( Yan et al 2015 ).…”

“…Among the Harnischia generic group, members of Parachironomus can separated from the similar genus Demicryptochironomus Lenz by the extended superior volsella with several distal setae always arising from distinct pits, and the inferior volsella with a pointed or blunt caudal projection ( Yan et al 2015 ). To date, 85 valid species have been reported worldwide ( Lehmann 1970 ; Ashe and Cranston 1990 ; Kikuchi and Sasa 1990 ; Oliver et al 1990 ; Sæther et al 2000 ; Wang 2000 ; Sasa et al 2001 ; Sasa and Tanaka 2001 ; Makarchenko et al 2005 ; Spies 2008 ; Trivinho-Strixino et al 2010 ; Yan et al 2015 ; Orel 2017 ).…”