Gyrophaena (Gyrophaena) hanseni A. Strand, 1946

Glotov, S. V., 2022, A New Species, New Synonymy, And Additional Records Of Gyrophaena (Coleoptera, Staphylinidae, Aleocha- Rinae) From The Palaearctic Region, Zoodiversity 56 (5), pp. 373-384 : 374-377

Gyrophaena (Gyrophaena) hanseni A. Strand, 1946

Gyrophaena hanseni Strand, 1946: 173 .

Gyrophaena spoliata Assing, 2009: 146 .

M a t e r i a l e x a m i n e d. Type. Gyrophaena hanseni : Lectotype (here designated): Ơ “TYPE [red label] / hanseni Strand [white labels] / Dyrehaven 21.9.44 [1944] [white labels] / Dania. Coll. Victor Hansen [yellow labels] / LECTOTYPE Ơ Gyrophaena hanseni A. Strand, 1946 S. Glotov des. 2011 [red label]” (ZMUC); paralectotype Ơ “Dyrehaven 21.9.44 [1944] [white labels] / hanseni Strand det. [white labels] / Dania. Coll. Victor Hansen [yellow labels] / PARALECTOTYPE Ơ Gyrophaena hanseni A. Strand, 1946 S. Glotov des. 2011 [red label]” (ZMUC).

R e d e s c r i p t i o n. Measurements (in mm): length of antenna: 0.67; maximal head width (including eyes): 0.45; head length 0.27; maximal width of pronotum: 0.52; length of pronotum (measured along its midline): 0.35; length of elytra at suture: 0.38; maximal width of elytra (combined width of each elytron when elytra closed along suture): 0.70; total length of body (from anterior margin of labrum to posterior margin of tergite VIII): 2.1.

Coloration: head red-brown; pronotum pale brown or brown, glossy; elytra yellowbrown, posterior angles and base with 2 (1 on each elytron) triangular, apically pointed, dark brown spots; abdomen pale brown, abdominal tergites VI and VII dark brown; mouthparts, antennae and legs yellow or pale brown.

Head strongly transverse, long, vertex with 8 or more small, round, distinct punctures on each side; microsculpture dense and distinct or absent. Antennae: segment I long, strongly widened towards apex; segment II long, narrower and shorter than segments I; segment III narrower and shorter than segment II; segments IV–X slightly strongly transverse, 1.33–1.50 times as wide as long, all segments almost parallel-sided.

Pronotum transverse, posterior angles and posterior margin of pronotal disc rounded; with 2 moderately large and some small round, distinct punctures, in the middle near posterior margin with 2 large, round punctures, posterior margin with even, dense, fine punctuation; microsculpture dense and distinct.

Elytra with dense and fine punctuation; microsculpture dense and distinct; with sparsely distributed fine setae.

Abdomen: abdominal tergites each with dense and distinct microsculpture and moderately large and some small round distinct punctures. Male: posterior margin of tergite VII in the middle with 2 large, round striae and laterally with some longitudinal, short striae; posterior margin of tergite VII with 1 moderately long, weakly pointed and inward curved process laterally and in middle with 2 slightly shorter appendages ( fig. 1 , 3–4). Aedeagus as on fig. 2, 2.

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

Comments. The original description of G. hanseni is based on four syntypes collected “Dyrehaven Jaegemborg Dyrehave near Copenhagen the 21st September 1944 ” by Victor Hansen ( Strand, 1946). Two male syntypes were found in the collections of ZMUC. The designation of one male specimen as lectotype is done for the better fixation of the identity of the name Gyrophaena hanseni A. Strand, 1946 .

Figures

Fig. 1. Abdominal tergites VIII of the male: 1 — G. anastasiarum sp.n.; 2 — G. kaunshanchiensis; 3–4 — G. hanseni; 5 — G. korbi; 6 — G. munsteri; 7 — G. pseudonana; 8 — G. pseudonitidula; 9 — G. transversalis; 10 — G. triquetra.

Fig. 2. Aedeagus: 1 — G. anastasiarum, sp. n.; 2 — G. hanseni; 3 — G. kaunshanchiensis; 4 — G. korbi; 5 — G. munsteri; 6 — G. pseudonana; 7 — G. pseudonitidula; 8 — G. transversalis; 9 — G. triquetra.