† Rovnoscydmus sp. specimen 5

(Figs 18, 139–144)

Material studied. Late Eocene of Europe, Rovno amber: sex unknown; inclusion in elongate, subtriangular prism of amber 9 mm long (Fig. 18), collection number K-8968 (SIZK).

Description. Body (Figs 139–144) elongate, relatively stout and strongly convex, brown; BL 1.05 mm.

Head (Figs 139–144) broadest at eyes, HL 0.15 mm, HW 0.20 mm; poorly visible; supraantennal tubercles indistinct; compound eyes large, strongly convex, oval; tempora slightly shorter than eyes. Antennae (Figs 139– 143) distinctly shorter than half BL, AnL about 0.38 mm, antennal club indistinctly demarcated; antennomeres I–II elongate, III–IV seem to be slightly transverse, V slightly elongate, VI–VII about as long as broad, VIII transverse or about as long as broad, IX and X about as long as broad, XI much shorter than IX–X combined, about 1.2 × as long as broad, with rounded apex.

Pronotum (Figs 139, 142) round, broadest site not possible to define; PL 0.25 mm, PW 0.25 mm; punctures on disc (Fig. 142) small but distinct, separated by spaces 2–3 times as wide as diameters of punctures; setae (Fig. 142) short and sparse, nearly recumbent, on anterior portions of hypomera replaced by distinct thick bristles (Fig. 143).

Elytra (Figs 139, 142) elongate oval, strongly convex, broadest site not possible to define, EL 0.65 mm, EW about 0.48 mm, EI about 1.37; punctures similar to those on pronotum but slightly sparser; setae poorly visible (Fig. 142).

Legs (Figs 139–144) moderately long, slender, unmodified.

Remarks. This specimen seems to be stouter than remaining inclusions of Rovnoscydmus and may represent a separate species, but the state of preservation and orientation in amber make comparisons difficult. Alternatively, it may be conspecific with Rovnoscydmus specimens 4, 8 and? Rovnoscydmus specimen 10, as they were all found in one piece of amber.