Foveomicrus indicus, Jałoszyński, 2020

Jałoszyński, Paweł, 2020, Two new Oriental genera of Cephenniini (Coleoptera: Staphylinidae: Scydmaeninae), Zootaxa 4718 (3), pp. 423-435 : 426-427

Foveomicrus indicus sp. n.

( Figs 1–19 )

Type material. Holotype: INDIA (KERALA): ♂, two labels: “INDIA: Kerala / Cardamon hills 15km / SW Munnar,Kallar Vall. / 1000m,6– 18.12.1993 / D. Boukal & Z. Kejval ” [white, printed], “ FOVEOMICRUS / indicus m. / P. Jałoszyński, 2019 / HOLOTYPUS” [red, printed] ( MHNG) . Paratypes: 7 exx. (one specimen disarticulated in permanent mount), same data as for holotype, except for yellow “ PARATYPUS ” labels ( MHNG, cPJ) .

Diagnosis. As for genus; endophallus with C-shaped tubular structure in median region.

Description. Body of male ( Figs 1–2 ) stout, strongly convex, light brown, setae silverish; BL 0.66 mm.

Head ( Figs. 1–2 ) broadest at large, strongly convex eyes, HL 0.09 mm, HW 0.18 mm; frons and vertex con- fluent and weakly convex. Punctures on vertex and frons distinct, large and deep, densely and evenly distributed, separated by spaces subequal to diameters of punctures; setae short, sparse, suberect. Antennae ( Fig. 13 ) slender, AnL 0.28 mm; antennomere I only slightly elongate, II about twice as long as broad; III as long as broad, IV barely noticeably longer than broad, V slightly elongate, longer than IV, VI barely noticeably longer than broad, V slightly elongate, shorter than V, VII indistinctly longer than broad, VIII as long as broad, slightly shorter than VII, IX indistinctly transverse, distinctly broader and longer than VIII, X about as long as broad, much larger than IX, XI about 1.7 × as long as broad, indistinctly narrower than X and about as long as IX–X together.

Pronotum ( Figs 1–2 ) broadest slightly in front of middle; PL 0.20 mm, PW 0.30 mm. Anterior margin weakly concave, anterior corners subtriangular and blunt, weakly obtuse-angled, lateral margins rounded and strongly microserrate ( Fig. 8 ), base arcuate with broad and shallow emargination and additionally with narrow emargination in front of mesoscutellar shield. Sides of pronotum with flattened area demarcated from median region by step-wise ridge connecting anterior and posterior lateral foveae, pronotal base with shallow and diffuse transverse impression connecting shallow impressions in which two pairs of foveae are situated. Punctures on pronotal disc similar to those on frons and vertex, evenly distributed except for narrow area adjacent to lateral ridge joining lateral foveae, which is impunctate. Setae slightly longer than those on frons and vertex, similarly sparse, suberect.

Elytra ( Figs 1–2 ) together oval, broadest distinctly in front of middle; EL 0.38 mm, EW 0.34 mm, EI 1.11; humeral calli indistinct, humeral denticles well-defined but blunt; humeral carinae narrow, sharply marked, slightly exceeding half length of elytra. Punctures on elytra slightly shallower and sparser than those on pronotum; setae similar to those on pronotum. Hind wings absent.

Legs moderately long and slender; unmodified.

Aedeagus ( Figs 16–19 ) elongate; AeL 0.13 mm; median lobe in ventral view drop-shaped, broadest in sub-basal region, in subapical area strongly narrowing toward subtriangular apex of dorsal wall of aedeagus, ventrally ostium closed by subtriangular apical plate rounded at apex and not reaching apex of ventral wall; endophallus with elongate median sclerotized structure distally connected with long, C-shaped tubular component; each paramere with one apical seta.

Female. Not determined in the studied material.

Distribution. Southern India.

Etymology. After the country name.

Figures

FIGURES 1–3. Foveomicrus indicus gen. & sp. n. Dorsal (1–2) and ventral (3) habitus. Abbreviations: bef, basal elytral foveae; hc, humeral carina; msvp, mesoventral process; mtvp, metaventral process; pcr, procoxal rest; pf, pronotal foveae; psp, prosternal process.

FIGURES 4–14. Foveomicrus indicus gen. & sp. n. Head in dorsal (4) and ventral (5) views; mandibles in dorsal view (6); posterolateral portion of pronotum, elytral base and scutellar shield in dorsal view (7); prothorax in ventral (8–9), dorsal (10), and left lateral (11) views; meso- and metanotum in dorsal view (12); right antenna in dorsal view (13); pterothorax in ventral view (14). Abbreviations: ala, alacrista; bef, basal elytral foveae; bst, basisternum; fg, frontal gland; fr, frons; gp, gular plate; gs, gular suture; hd, humeral denticle; hyr, hypomeral ridge; lbr, labrum; lfa, lateral furcal arm; lp, labial palp; lpc, lateral pronotal carina; mn, mentum; mscc, mesocoxal cavity; msvp, mesoventral process; mtvp, metaventral process; mxp1–4, maxillary palpomere I–IV; nss, notosternal suture; pcc, procoxal cavity; pcr, procoxal rest; pf, pronotal foveae; pmn, prementum; psp, prosternal process; sc2, mesoscutum; scf, scutellar foveae; scl2, mesoscutellum; smn, submentum; vt, vertex.

FIGURES 15–19. Foveomicrus indicus gen. & sp. n. Abdomen in ventral view (15); aedeagus in ventral (16, 18) and lateral (17, 19) views. Abbreviation: af, abdominal foveae.