Gyrophaena (Gyrophaena) soror Bernhauer, 1923

Enuschenko, Ilya V. & Shavrin, Alexey V., 2021, On some species of Gyrophaenina Kraatz 1856 of Sri Lanka and India (Coleoptera: Staphylinidae: Aleocharinae: Homalotini), Zootaxa 5032 (3), pp. 331-356 : 349-350

Gyrophaena (Gyrophaena) soror Bernhauer, 1923

( Figs 78–82 )

Gyrophaena soror Bernhauer, 1923: 127

Gyrophaena (s.str.) soror: Bernhauer & Scheerpeltz 1926: 534 , Cameron 1939: 106

Type material examined: Lectotype (here designated) of Gyrophaena soror Bernhauer 1923 , 1 ♂ [dissected by S. Glotov: the preparation in bad quality, fixed by glue with unclear origin and any attempts to make a new preparation were unsuccessful; right antennomeres 8–10 missing; original labels as in Fig. 82 ]: ‘ Uri Kashmir’, ‘ soror Brh. Typus unic’, ‘Chicago NHMus M. Bernhauer Collection’, ‘ LECTOTYPE Gyrophaena soror Bernhauer, 1923 S. Glotov des. 2010’, ‘ SYNTYPE teste D.J. Clarke 2014 GDI Imaging Project’, ‘Photographed Kelsey Keaton 2014 Emu Catalog’, ‘( FMNH barcode in left side of label) FMNHINS | 2818973 | FIELD MUSEUM’, ‘ LECTOTYPE Gyrophaena soror Bernhauer, 1923 S. Glotov des. 2010’ ( FMNH).

Redescription. Body length 2.75 mm. Habitus as in Fig. 78 . Body, mouthparts and antennomeres 4–11 dark brown, antennomeres 1–3 and legs yellow-brown. Head as wide as long, with distinct reticulate microsculpture and moderately large (0.02 mm diam.) 8–10 punctures in laterobasal portions behind eyes; median area and basal portions without punctures. Basal antennomere about twice as long as wide, antennomere 2 slightly narrower than basal antennomere, about twice as long as wide, 3 distinctly narrower than 2, 4 short, about as wide as long, 5–6 shorter and wider than 4, transverse, 7–10 slightly wider than 6, apical antennomere about twice as long as 10. Pronotum 1.5 times as wide as long and head, with two longitudinal rows of fine (0.01 mm diam.) and larger (0.02 mm diam.) punctures on lateral margins of pronotum; basal portion with coarse, distinct punctation, middle part impunctate; microsculpture as that on head. Elytra 1.4 times as long as pronotum, 1.5 times as wide as long, with fine (0.01 mm diam.) punctation; microsculpture as that on pronotum. Abdomen about as wide as elytra.

Male. Median lobe with short dorsal projection, rounded apically and with long, filiform, spirally folded flagellum; ventral plate slightly shorter than dorsal projection with widely rounded lateral margin and subacute apex ( Fig. 79 ). Apical margin of abdominal tergite VII with two small and round median tubercles and elongated lateral elevations from each side of median tubercles. Apical margin of abdominal tergite VIII with two widely rounded latero-apical projections and two smaller, rounded median projections ( Fig. 80 ). Apical margin of abdominal sternite VIII rounded ( Fig. 81 ).

Female unknown.

Comparative notes. Based on the arrangement of pronotal punctures, features of punctation of the elytra and details of structure of the aedeagus, G. soror probably belongs to the neonana group established by Seevers (1951). This species is difficult to compare with other species of the Oriental and the East Palaearctic Region due to the fact that most of these species have not yet been revised.

Distribution. India (Kashmir).

Remarks. Gyrophaena soror was originally described based on an unspecified number of syntypes. A male from FMNH was designated as the lectotype by S. Glotov ( Fig. 82 ), but this act was not published by him. Thus, this specimen is designated as the lectotype here in order to fix the identity of the name.

Figures

FIGURES 78–82. Gyrophaena soror (holotype): 78–habitus, 79–aedeagus, lateral view, 80–male abdominal tergite VIII, dorsal view, 81–male abdominal sternite VIII, ventral view, 82–type labels. Scale bars: 1.0 mm (Fig. 78), 0.10 mm (Figs 79–81).