Gyrophaena, Mannerheim, 1830

Enushchenko, Ilya V., 2019, Review of the subtribe Gyrophaenina Kraatz 1856 (Coleoptera: Staphylinidae: Aleocharinae: Homalotini) of Middle Asia, with emphasis on the fauna of Kazakhstan, Zootaxa 4613 (2), pp. 379-397 : 388

Key to the Gyrophaena species of the laetula group of Kazakhstan

1 Pronotum with several small, scattered punctures not forming longitudinal rows and two rather large punctures near base of pronotum. Elytra between cells of microsculpture without micropunctures, but with several distinct tubercles. Medial teeth of male abdominal tergite VIII quite wide and long ( Figs. 36, 38 ). Ventral plate of aedeagus markedly wider and short, distinctly angled near the base, quite blunted apically ( Figs. 35, 37 ).................................. G. aryanamensis sp. nov.

- Pronotum with two longitudinal rows of punctures, usually with several additional punctures closer to lateral margins of pronotum. Elytra between cells of microsculpture with sparse, small shallow punctation and few tubercles only on external posterior angles. Median teeth of male abdominal tergite VIII narrower and rather small. Ventral process of aedeagus more elongated, arched, quite acute apically ( Figs. 42 , 47 and Enushchenko & Semenov (2016: Figs. 12 , 13 ))......................... 2

2 Elytra with indistinct, sparse, and small punctation. Median teeth of male abdominal tergite VIII rather thin and small ( Figs. 43–44 , 48 ). Lower edge of ventral process of aedeagus somewhat flat; dorsal projection of internal sac irregularly elongate, slightly widening to apex ( Figs. 42 , 47 )........................................................... G. hochhuthi

- Punctation of elytra markedly dense. Median teeth of male tergite VIII stout, wide, and obtuse ( Enushchenko & Semenov 2016: Figs. 14 ); lower edge of the ventral plate slightly angular in outline; dorsal projection of internal sac regularly elongate ( Enushchenko & Semenov 2016: Figs. 12 , 13 )...................................................... G. congrua

Figures

FIGURES 34–38. Gyrophaena aryanamensis, sp. nov. (Figs 34: Holotype, TAJIKISTAN, Sharak; 35–38: Paratype, KYR- GYZSTAN, Dzhany-Bazar): 34—habitus, dorsal view, 35, 37—aedeagus, lateral view, 36, 38—male abdominal tergite VIII, dorsal view. Scale bars: 1 mm (34), 0.1 mm (35–38).

FIGURES 39–46. Gyrophaena aryanamensis, sp. nov. (Figs. 39, 40: KYRGYZSTAN, Dzhany-Bazar) and Gyrophaena hochhuthi Bernhauer (Figs. 41–46: KYRGYZSTAN, Dzhany-Bazar): 41—habitus, dorsal view, 42—aedeagus, lateral view, 43, 44—male abdominal tergite VIII, dorsal view, 39, 45—female abdominal tergite VIII, dorsal view, 40, 46—female abdominal sternite VIII, dorsal view. Scale bars: 1 mm (41), 0.1 mm (39, 40, 42–46).

FIGURES 47–50. Gyrophaena hochhuthi Bernhauer: 47—aedeagus, lateral view, 48—male abdominal tergite VIII, dorsal view (Figs. 47, 48: G. hochhuthi, KYRGYZSTAN, Terskei-Alatau), 49—habitus of holotype, dorsal view, 50—labels of holotype. Scale bars: 1 mm (49), 0.1 mm (47, 48, 50).

FIGURES 7–12. Encephalus angusticollis J. Sahlberg: 7 (type of E. torosus Eppelsheim, male), 10 (type of E. torosus Eppelsheim, female)—habitus, dorsal view, 11—habitus, frontal view (female), 8—aedeagus, lateral view, 9—labels of type of E. torosus Eppelsheim, male, 12—labels of type of E. torosus Eppelsheim, female. Scale bars: 1 mm (7, 10, 11), 0.1 mm (8).

FIGURES 13–16. Gyrophaena kangasi Rutanen (Holotype): 13—habitus, dorsal view, 14—aedeagus, lateral view, 15—male abdominal tergite VIII, dorsal view, 16—labels of the holotype. Scale bars: 1 mm (13), 0.1 mm (14, 15).