Geodromicus turnai, Shavrin, 2025

Geodromicus turnai sp. n.

( Figs 3–5 View FIGURES 1–3 View FIGURES 4–9 )

Type material examined. Holotype ♂ ( Fig. 3 View FIGURES 1–3 ; dissected): ‘ China, Xinjiang, 1993 | W Kunlun Shan, 3000m | MAZAR, 28–30/VI. | Jaroslav Turna leg.’ <printed>, ‘ Holotype | Geodromicus | turnai sp.n. | Shavrin A.V. des. 2025’ <red, printed> ( NMW).

Paratypes: 4 ♀♀: same data as the holotype ( 1 ♀: cSh; 3 ♀♀: NMW); 1 ♀: ‘ China, Zinjiang, 1500–2000m | NW slope of Bogda Shan | 115km E Urumqi, 18–19/V. | 10km N TIANCHI, 1993 | Jaroslav Turna leg.’ ( NMW). All paratypes with additional red printed label: ‘ Paratype | Geodromicus | turnai sp.n. | Shavrin A.V. des. 2025’.

Description. Measurements (n=6): HW: 0.87–0.95; HL: 0.55–0.64; OL: 0.27–0.30; TL: 0.10–0.12; AL ( holotype): 3.74; PL: 0.85–0.97; PWmax: 1.10–1.20; PWmin: 0.80–0.87; ESL: 1.55–1.85; EW: 1.72–1.87; MTbL: 1.30 ( holotype); MTrL ( holotype): 0.61 (MTrL 1–4: 0.31; MTrL 5: 0.30); AW: 1.65–1.92; AedL: 1.05; BL: 4.90– 5.45 ( holotype: 5.00).

Habitus as in Fig. 3 View FIGURES 1–3 . Body brownish, with distinctly paler lateral and basal portions of pronotum, elytra and paratergites of abdomen; mouthparts, antennae and legs yellow-brown. Body glossy; forebody without microsculpture, except for area between ocelli and neck with dense isodiametric microreticulation; abdominal tergites with dense transverse microsculpture. Punctation of head irregular and sparse, finer and sparser in middle; neck without punctures; pronotum with regular and dense punctation, slightly larger and deeper than that on head, finer and sparser in mediobasal half, mediobasal third without punctures; scutellum with several fine punctures; abdominal tergites with dense and fine punctation. Pubescence of forebody yellow, dense and moderately long, semi-erect, longer on frontal part of head; abdomen with dense decumbent pubescence, slightly shorter and finer than that on forebody.

Head 1.4–1.5 times as broad as long, slightly convex, more elevated between anterior margins of eyes and on infraorbital portions; anteriomedian depression deep and wide, subtriangular, narrowed and extended basad to level of anterior margins of eyes, sometimes connected with subrectangular, large and moderately deep interocellar depression; interocellar depression separated from infraorbital portions by distinctly convergent latero-anteriad narrow and relatively deep anteocellar foveae (grooves in front of ocelli), each reaching level of apical third of eye; temples about three times shorter than longitudinal length of eyes, gradually narrowed toward neck. Eyes moderately large and convex. Ocelli moderately large, distance between ocelli 1.6–1.7 times as long distance between ocellus and posterior margin of eye. Maxillary palpomere 3 about as long as preceding segment, significantly broadened apicad; apical palpomere distinctly shorter and narrower than preceding segment, from about middle gradually narrowed toward subacute apex. Antenna reaching apical third of elytra when reclined; basal antennomere robust, about three times as long as broad, antennomere 2 distinctly narrower and 1.5 times as long as basal antennomere, 3 distinctly longer and slightly narrower than 2, 4–5 slightly broader than 3, 6 slightly longer and broader than 5, 7–9 slightly longer than 6, 10 distinctly shorter than 9, apical antennomere 1.3–1.5 times as long as 10, from apical third gradually narrowed toward rounded apex.

Pronotum slightly convex, 1.2 times as broad as long, from widest anterior third strongly narrowed basad toward subacute hind angles, with elongate, subparallel latero-basal portions; anterior margin straight, sometimes slightly concave in middle, distinctly shorter than straight posterior margin; middle portion without depressions, but one paratype with fine transverse impression slightly above posterior margin ( holotype with two indistinct longitudinal impressions in mediobasal part); lateral margins slightly and narrowly impressed.

Elytra convex, slightly broader than long, distinctly broadened posteriad, 1.8–1.9 times as long as pronotum; lateral margins narrowly flattened and slightly reflexed in latero-apical portions; hind margins straight or rounded. Hind wings fully developed.

Metatarsi more than twice as long as metatibia.

Abdomen slightly narrower or broader than elytra, with two large and transverse tomentose spots in middle of abdominal tergite IV and narrow palisade fringe on apical margin of abdominal tergite VII.

Male. Protarsomeres 1–4 significantly broadened. Posterior margins of abdominal tergite VIII and sternite VIII slightly sinuate. Aedeagus with broadened basal and median parts, with rounded apex of median lobe; parameres narrow, slightly broadened apically, short and not reaching apex of median lobe, each with four short apical setae; internal sac wide and moderately long, weakly sclerotized, without fields of spines, with narrow short flagellum in basal part ( Fig. 4 View FIGURES 4–9 ). Lateral aspect of the aedeagus as in Fig. 5 View FIGURES 4–9 .

Female. Protarsomeres 1–4 narrow. Posterior margins of abdominal tergite VIII and sternite VIII truncate.

Comparative notes. Based on the shape and the coloration of the body, and the morphology of the aedeagus with the presence of short narrow flagellum and weakly sclerotized internal sac, G. turnai sp. n. belongs to the convexicollis group, six species of them are distributed in Central Asia and the Himalayan Region ( Shavrin 2022a). The new species can be distinguished from them by the less convex forebody, the shape of the pronotum with elongate latero-basal portions, significantly narrower parameres and broader apical part of the median lobe.

Distribution. Geodromicus turnai sp. n. is known from two localities in Kunlun Mts., Xinjiang, China.

Etymology. Patronymic; the species is named in honour of Jaroslav Turna (Kostelec na Hané, Czechia), collector of the type specimens.

Bionomics. Specimens were collected at elevations from 1500 to 3000 m a.s.l. Detailed bionomic data are unknown.