Gymnometriocnemus (Raphidocladius) kamimegavirgus Sasa & Hirabayashi, 1993

Stur, Elisabeth & Ekrem, Torbjorn, 2015, A review of Norwegian Gymnometriocnemus (Diptera, Chironomidae) including the description of two new species and a new name for Gymnometriocnemusvolitans (Goetghebuer) sensu Brundin, ZooKeys 508, pp. 127-142 : 135

Taxon classification Animalia Diptera Chironomidae

Gymnometriocnemus (Raphidocladius) kamimegavirgus Sasa & Hirabayashi, 1993

Gymnometriocnemus kamimegavirgus Sasa & Hirabayashi ( Sasa and Hirabayashi 1993; Sasa and Okasawa 1994).

Gymnometriocnemus volitans (Goetghebuer), misidentifications (e.g. Brundin 1956).

Gymnometriocnemus (Raphidocladius?) volitans (Goetghebuer) sensu Brundin (1956), misidentification ( Sæther 1983).

Gymnometriocnemus (Raphidocladius) volitans (Goetghebuer) sensu Brundin (1956) ( Ashe and O’Connor 2012; Sæther and Spies 2013).

Diagnosis.

Gymnometriocnemus (Raphidocladius) kamimegavirgus can be separated from other species of the genus Gymnometriocnemus by having well-developed, long virga (about the length of the gonocoxite); AR 0.9-1.1 (n=5); LR1 about 0.53-0.56 (n=3); wing membrane with setae at the apex only, occasionally with 1-2 setae proximally in cell an; R2+3 situated in the middle between R1 and R4+5; dark brown almost blackish thorax and head, slightly paler abdomen and legs.

Remarks.

Our examined material is from eastern, central and northern Norway, frequently collected near streams, rivers and moors. Male adults fit well with Brundin’s description of Gymnometriocnemus volitans , and Sasa & Hirabayashi’s description of Gymnometriocnemus kamimegavirgus except for slightly fewer setae on the abdominal tergites ( Brundin 1956; Sasa and Hirabayashi 1993; Sasa and Okasawa 1994). The species is Holarctic in distribution.