Eudesis hispanica, Jałoszyński, 2025

Jałoszyński, Paweł, 2025, A new species of Eudesis Reitter from Spain (Coleoptera: Staphylinidae: Scydmaeninae), Zootaxa 5725 (1), pp. 143-150 : 144-147

Eudesis hispanica sp. nov.

( Figs 1‒18 )

Type material. Holotype: ( SPAIN): ♂, two labels: “ SPAIN, Córdoba , Cabra / Camino Viejo a la Ermita / 37.47849 / -4.394305, 870 m / MSS-rocky soil, 24.11.2012 / leg. Ándujar, Arribas & Arribas” [white, printed], “ EUDESIS / hispanica m. / P. Jałoszyński, '25 / HOLOTYPUS ” [red, printed] ( MNHW) . Paratypes (3 exx.): 1 ♀, same data as for holotype ( MNHW) ; 1 ♂, 1 ♀ (partly disarticulated and mounted in Canada balsam), “ SPAIN, Córdoba , Cabra / Carcabuey / 37.480146 / -4.334737, 995 m / soil at Olea europea, 24.11.2012 / leg. Ándujar, Arribas & Arribas” [white, printed], “ EUDESIS / hispanica m. / P. Jałoszyński, '25 / PARATYPUS ” [yellow, printed] (cPJ) .

Diagnosis. Body conspicuously slender ( Fig. 1 ), elytra ~2.22‒2.33 times as long as pronotum and ~1.67~1.82 times as long as broad; male with irregular large patch of dense lanceolate setae in posterior region of metaventrite ( Fig. 7 ); metaventral intermetacoxal process with one median and two lateral indentations ( Fig. 7 ); aedeagus in ventral view ( Fig. 10 ) with basal capsule distinctly broader than distal region and in lateral view ( Fig. 11 ) with distal region abruptly narrowed and demarcated from basal capsule; endophallus with slender flagellum; each paramere with slightly concave outer apical margin, so that apex is narrowly subtriangular and pointed ( Fig. 10 ).

Description. Body of male ( Figs 1‒2 ) strongly elongate, moderately strongly flattened, light brown (specimens may be darkened because of DNA extraction before taxonomic study). BL 0.90‒0.93 mm.

Head ( Figs 1‒4 ) broadest near middle, eyeless, rounded, HL 0.18 mm, HW 0.16 mm; vertex and frons together about as long as broad; posterior margin of vertex weakly rounded and lacking median emargination; supraantennal tubercles weakly elevated, forming short and broad projection over antennal insertions. Dorsum of head and genal regions impunctate and covered sparsely with short and weakly suberect setae, posterior areas of genal region abruptly deepened (visible in lateral view, Fig. 4 , arrowhead), deep transverse region concealed ventrally by modified lanceolate setae distributed along its anterior and posterior margins. Antenna ( Fig. 4 ) slender, AnL 0.43 mm, with trimerous club; scape slightly more than twice as long as broad, pedicel about 1.4 times as long as broad, antennomeres 3‒10 each transverse (3‒6 indistinctly so), 11 shorter than 9 and 10 together, only slightly elongate.

Prothorax ( Figs 1–4 ) in dorsal view barrel-shaped, broadest near middle; PL 0.23 mm, PW 0.20 mm. Anterior margin evenly and weakly rounded; anterior corners obtuse-angled and blunt; lateral margins strongly rounded; posterior corners obtuse-angled, each with weakly marked tip and barely discernible short longitudinal lateral ridge; posterior margin weakly rounded. Pronotal disc impunctate and with evenly distributed short and weakly suberect sparse setae. Prosternum and hypomera ( Fig. 3 ) with similar setae as those on pronotal disc, except for asetose posteromedian portions of hypomera.

Elytra ( Figs 1‒2 ) together oval and strongly elongate, broadest slightly in front of middle and strongly narrowing anteriorly and posteriorly; EL 0.50‒0.53 mm, EW 0.30 mm, EI 1.67‒1.75; humeral denticle weakly developed, posteriorly prolonged by elongate elevation; base of each elytron with two foveae, inner fovea posteriorly confluent with short and shallow discal sulcus reaching about 1/3 of elytral length; apices rounded together. Punctures and setae similar to those on pronotal disc.

Mesoventrite ( Fig. 5 ) with asetose procoxal rests and several long setae behind rests, mesoventral intermesocoxal process asetose except for several long setae near its apex ( Fig. 7 ).

Metaventrite ( Figs 5‒6 ) slightly elongate and weakly broadening distally, posterior margins of mesocoxal rests sharply carinate; anteromedian fovea concealed by lanceolate setae ( Fig. 5 , arrowhead), in transparent mount ( Fig. 6 , arrowhead) fovea clearly visible as large and slightly transversely oval opening; metaventrite flattened behind anteromedian fovea, with large and setose lateral fovea behind each mesocoxal insertion; metaventral intermetacoxal process composed of two lateral lobes, each with distinctly indented margin, so that together with posteromedian indentation there are four short lobes separated by three shallow indentations. Surface of metaventrite sparsely covered with long recumbent setae, except for large and irregular posteromedian patch of dense and lanceolate setae. Anapleural ridges conspicuously thick ( Fig. 6 ), corresponding anapleural sulci largely obliterate, except for traces near anterior margin of metaventrite.

Legs ( Figs 1–2 ) moderately long and slender, unmodified.

Abdomen with setae similar to those on metaventrite.

Aedeagus ( Figs 8‒11 ) moderately slender, AeL 0.23 mm; median lobe in ventral and especially in lateral view distinctly divided into subcylindrical basal capsule and narrower, dorso-ventrally flattened distal region, apex evenly rounded; endophallus asymmetrical, with large bell-shaped median complex and slender flagellum; parameres exceeding apex of median lobe, each with apical region curved mesad, parameral apex pointed and subtriangular, outer margin of subapical region in ventral view slightly concave.

Female. Externally similar to male but lacking patch of modified setae on metaventrite, with slightly narrower elytra and slightly shorter antennae in relation to body length. BL 0.90 mm; HL 0.18 mm, HW 0.16 mm, AnL 0.38 mm; PL 0.23 mm, PW 0.18 mm; EL 0.50 mm, EW 0.28 mm, EI 1.82.

Spermatheca ( Fig. 12 ) with nearly globular receptacle, short funnel-like invagination, and two broad ducts, one short and straight, the other one much longer, strongly curved and with thickened but thin-walled distal (in relation to capsular receptacle) portion.

Distribution. Southern Spain, Córdoba.

Etymology. The specific adjective hispanica is derived from the country name.

Figures

FIGURES 1–2. Eudesis hispanica sp. nov., holotype male, dorsal habitus.

FIGURES 3–12. Eudesis hispanica sp. nov., holotype male (3, 5, 7, 8–11) and paratype female (4, 6, 12). Head and prothorax in ventral (3) and lateral (4; arrowhead indicating transverse concavity) views; pterothorax in ventral view (5–6; arrowhead indicating median metaventral fovea); metaventral intermetacoxal process (7); aedeagus in ventral (8, 10) and lateral (9, 11) views; and spermatheca (12).

FIGURES 13–18. Eudesis hispanica sp. nov., collecting sites. Camino Viejo a la Ermita (13–15), and Carcabuey (16–18).