Rovnoscydmus

Jałoszyński, Paweł & Perkovsky, Evgeny, 2016, Diversity of Scydmaeninae (Coleoptera: Staphylinidae) in Upper Eocene Rovno amber, Zootaxa 4157 (1), pp. 1-85 : 51-52

publication ID

https://doi.org/ 10.11646/zootaxa.4157.1.1

publication LSID

lsid:zoobank.org:pub:6BF4514A-892F-499F-BC1E-B7920C7A00B0

DOI

https://doi.org/10.5281/zenodo.5681798

persistent identifier

https://treatment.plazi.org/id/03A187A9-290B-FFC2-FF03-C7099FABFF26

treatment provided by

Plazi

scientific name

Rovnoscydmus
status

gen. nov.

Rovnoscydmus View in CoL sp. specimen 7

( Figs 20 View FIGURES 1 – 20 , 151–154 View FIGURES 151 – 154 )

Material studied. Late Eocene of Europe , Rovno amber: sex unknown; inclusion in subtriangular, irregular piece of amber 23 mm long ( Fig. 20 View FIGURES 1 – 20 ), collection number K-3037 ( SIZK).

Description. Body ( Figs 151–154 View FIGURES 151 – 154 ) elongate, slender and relatively strongly convex, moderately light brown; BL 0.95 mm.

Head ( Figs 151–154 View FIGURES 151 – 154 ) broadest at eyes, HL about 0.15 mm, HW 0.20 mm; vertex strongly transverse; frons not visible; compound eyes large, strongly convex, oval; length of tempora in relation to eyes not possible to assess. Punctures and setae on dorsum of head poorly visible. Antennae ( Figs 151–154 View FIGURES 151 – 154 ) much shorter than half BL, AnL 0.35 mm, antennal club indistinctly demarcated; antennomeres I–II strongly elongate, shapes of proximal flagellomeres difficult to assess, antennomeres VIII–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 151, 153 View FIGURES 151 – 154 ) slightly elongate, broadest near anterior fourth (but very indistinctly narrowing posteriorly); PL 0.25 mm, PW 0.24 mm; punctures and setae on disc poorly visible, setae on sides of pronotum replaced by distinct thick bristles ( Fig. 153 View FIGURES 151 – 154 ).

Elytra ( Figs 151, 153 View FIGURES 151 – 154 ) elongate oval, broadest site not possible to define, EL 0.55 mm, EW 0.38 mm, EI 1.47; punctures ( Fig. 153 View FIGURES 151 – 154 ) fine but distinct, separated by spaces 2–3 × as wide as diameters of punctures; setae ( Fig. 153 View FIGURES 151 – 154 ) short, sparse and nearly recumbent.

Legs ( Figs 151–154 View FIGURES 151 – 154 ) moderately long, slender, unmodified.

Remarks. This specimen, although relatively well exposed, is unremarkable and difficult to identify as conspecific with any other inclusion of Rovnoscydmus .

SIZK

Schmaulhausen Institute of Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

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