? Scydmoraphes sp. 1

(Figs 32, 215–216)

Material studied. Late Eocene of Europe, Rovno amber: sex unknown; inclusion in elongate, subtriangular piece of amber 12 mm long (Fig. 32), collection number K-6764 (SIZK).

Description. Body (Figs 215–216) elongate, moderately slender and convex, dark brown; BL 0.98 mm.

Head (Figs 215–216) broadest at eyes, HL 0.15 mm; vertex and frons not visible; eyes large, oval, strongly convex; tempora seem shorter than eyes. Punctures and setae on frons and vertex poorly visible. Antennae (Figs 215–216) much shorter than half BL, AnL about 0.34 mm, gradually thickened distally and relatively slender, scape and pedicel strongly elongate, shapes of remaining antennomeres difficult to define.

Pronotum (Figs 215–216) elongate, broadest at base but with nearly parallel-sided lateral margins in posterior half; PL 0.28 mm, PW 0.23 mm; anterior margin strongly and evenly rounded and laterally confluent with lateral margins, so that anterior pronotal corners are not marked; sides rounded in anterior third and nearly straight in posterior half; posterior corners distinct, nearly right-angled, blunt; posterior margin nearly straight; base with one pair of shallow and diffused lateral pits (Fig. 216; abp) connected by complete and uninterrupted transverse antebasal groove (Fig. 216; abg). Punctures on pronotal disc (Fig. 216) small but distinct, separated by spaces 2–3 × as wide as diameters of punctures; setae (Fig. 216) sparse, short and suberect.

Elytra (Figs 215–216) elongate oval, moderately convex, broadest near middle, EL 0.55 mm, EW 0.35 mm, EI 1.57; elytral base distinctly broader than base of pronotum; each elytron with one distinct asetose basal fovea (Fig. 216; bef); punctures and setae (Fig. 216) similar to those on pronotal disc.

Legs (Figs 215–216) moderately long, slender, unmodified.

Remarks. Diagnostic characters of the extant genus Scydmoraphes Reitter, 1891 were illustrated and summarized in Jałoszyński (2015f). Characters of the Rovno amber specimen K-6764 that suggest it can belong in Scydmoraphes are as follows: the pronotum elongate, with rounded anterior margin, anterior pronotal corners not marked, posterior pronotal corners distinct; lateral pronotal margins developed as sharp edges or carinae (Fig. 216; lpc), the pronotal base with one pair of lateral pits (Fig. 216; abp) developed as shallow and diffused impressions connected by complete transverse antebasal groove (Fig. 216; abg); and each elytron with one distinct and asetose basal fovea (Fig. 216; bef). However, the most important ventral characters are not visible and the placement in genus is putative.