Gyrophaena (Gyrophaena) pseudonana A. Strand 1939

Gyrophaena (Gyrophaena) pseudonana A. Strand, 1939

Strand, 1939: 108.

M a t e r i a l e x a m i n e d. Types. G. pseudonana: Lectotype Ơ (here designated): “ Rundhaug Målselv A. Strand / Gyrophaena pseudonana A. Strand TYPUS / NHMO: type collection 1000175265 / LECTOTYPE Ơ Gyrophaena pseudonana A. Strand, 1939 des. Glotov 2010” (NHMO).

Non-type. Ukraine, Lugansk Region, Stanichno-Luganskiy, 1 ex., 30.04.2007 (cGl).

Redescription. Measurements (in mm): length of antenna: 0.70; maximal head width (including eyes): 0.45; head length 028; maximal width of pronotum: 0.57; length of pronotum (measured along its midline): 0.36; length of elytra at suture: 0.40; maximal width of elytra (combined width of each elytron when elytra closed along suture): 0.77; total length of body (from anterior margin of labrum to posterior margin of tergite VIII): 2.4.

Coloration: head dark brown; pronotum dark brown; elytra yellow or pale brown, with slightly darkened posterior angles; abdomen pale brown, abdominal tergites VI–VII brown; mouthparts, antennae and legs yellow.

Head transverse, vertex with 9 or more fine, round, distinct punctures on each side; microsculpture dense and distinct. Antennae length; antennal segment I long, strongly widened towards apex; segment II long, narrower and shorter than segment I; segment III narrower and shorter than segment II; segments IV–X moderately strongly transverse.

Pronotum strongly transverse, posterior angles and posterior margin of pronotal disc rounded; in the middle with 2 longitudinal rows of 6 or more (1 moderately large and 5 or more small) round, distinct punctures each; microsculpture dense and distinct.

Elytra with dense and fine punctuation; microsculpture dense and distinct; with sparsely distributed fine setae, microsculpture indistinct or absent.

Abdomen: abdominal tergites each with indistinct or absent, fine punctuation. Male: posterior margin of tergite VIII with wide incision bordered by 2 short, wide, apically weakly pointed, inward curved appendages and medially with 2 short and thin appendages (fig. 1, 7). Aedeagus (fig. 2, 6). Spermatheca (fig. 3, 1).

D i s t r i b u t i o n. Europe, Siberia (Schülke & Smetana, 2015).

Comments. The original description of G. pseudonana is based on an unspecified number of syntypes collected collected “sie wurde bei Rundhang in Målselv in Nord-Norwegen am 18. Juni 1937 an kleinen Scheibenpilzen zwischen Salix-Sträuchern am Ufer des Flusses in Gesellschaft zahlreicher nana gefunden. Einige weitere Stücke wurden in Anspülicht bei Rundhang und bei Moen in Målselv gefunden. Sie liegt ferner von Sel in Gudbrandsdal vor, wo ich ein ♀ am 6. Juni 1929 fand.,wie auch von Sorum in Vågå wo Munster ein Ơ im Juli 1932 erbeutet hat” collected by Merkmalen (Strand, 1939). A male syntype found in the collection of NHMO is designated as lectotype is done for the better fixation of the identity of the name Gyrophaena pseudonana A. Strand, 1939.