† Rovnoscydmus sp. specimen 1

(Figs 14, 120–125)

Material studied. Late Eocene of Europe, Rovno amber: sex unknown; inclusion in elongate prism of amber 11 mm long (Fig. 14), collection number K-25702 (SIZK).

Description. Body (Figs 120–125) elongate, slender and relatively strongly convex, light brown; BL 1.00 mm.

Head (Figs 120–121, 123–124) broadest at eyes, HL 0.20 mm, HW about 0.13 mm; vertex and frons confluent, together subtrapezoidal and moderately transverse; supraantennal tubercles weakly raised but distinct; compound eyes large, strongly convex, oval; tempora distinctly shorter than eyes. Punctures on frons and vertex (Fig. 123) fine and unremarkable, separated by spaces 3–4 × as wide as diameters of punctures; setae (Fig. 123) sparse, short and nearly recumbent. Antennae (Figs 120–121, 123–124) much shorter than half BL, AnL 0.40 mm, antennal club not demarcated; antennomeres I–II elongate, III–IV about as long as broad or slightly elongate, V–VII about as long as broad, VIII transverse, IX and X distinctly transverse, XI much shorter than IX–X combined, about 1.3 × as long as broad, with rounded apex.

Pronotum (Figs 120, 123) elongate, broadest site not possible to define; PL 0.25 mm, PW 0.20 mm; punctures on disc (Fig. 123) small but distinct, separated by spaces 3–4 × as wide as diameters of punctures; setae (Fig. 123) short and sparse, nearly recumbent, on sides of pronotum replaced by distinct thick bristles.

Elytra (Figs 120, 123) elongate oval, strongly convex, broadest site not possible to define, EL 0.55 mm, EW 0.30 mm, EI 1.83; punctures and setae similar to those on pronotum (Fig. 123).

Legs (Figs 120–125) moderately long, slender, unmodified.

Remarks. This specimen differs from R. frontalis and R. microscopicus in proportions of body parts, but its external characters are unremarkable and do not allow for a reliable diagnosis of a new species. Structures of the mesoventrite are exceptionally well exposed in this inclusion (Fig. 125).