Cephennomicrus

Jałoszyński, Paweł & Perkovsky, Evgeny, 2016, Diversity of Scydmaeninae (Coleoptera: Staphylinidae) in Upper Eocene Rovno amber, Zootaxa 4157 (1), pp. 1-85 : 32-33

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.5681753
persistent identifier	https://treatment.plazi.org/id/03A187A9-2926-FFD1-FF03-C4B99FAFFECD
treatment provided by	Plazi
scientific name	Cephennomicrus
status

Treatment

Cephennomicrus View in CoL sp. 5

( Figs 10 View FIGURES 1 – 20 , 99–102 View FIGURES 99 – 102 )

Material studied. Late Eocene of Europe , Rovno amber: sex unknown; inclusion in rectangular prism of amber 13 mm long ( Fig. 10 View FIGURES 1 – 20 ), collection number DU-32 ( SIZK).

Description. Body ( Figs 99–102 View FIGURES 99 – 102 ) elongate and moderately strongly convex, dark brown; BL 0.76 mm.

Head ( Figs 99–102 View FIGURES 99 – 102 ) broadest at eyes, HL 0.10 mm, HW 0.18 mm; frons and vertex confluent, weakly convex and together strongly transverse; supraantennal tubercles weakly marked; compound eyes large and strongly convex, moderately coarsely faceted; punctures on frons sparse and fine; setae sparse, short and nearly recumbent. Antennae ( Figs 99–102 View FIGURES 99 – 102 ) much shorter than half BL, AnL about 0.25 mm, shapes of most antennomeres difficult to assess, but IX seems at least as long as broad or elongate, X transverse, XI about as long as IX–X combined or slightly shorter, about as broad as X and less than twice as long as broad, nearly or completely symmetrical.

Pronotum ( Figs 99, 102 View FIGURES 99 – 102 ) subrectangular, but exact shape difficult to assess; PL 0.23 mm, PW 0.25 mm; pronotal disc seems to be broadest in front of middle, sides rounded in anterior third and weakly sinuate posteriorly; posterior pronotal corners obtuse-angled; posterior margin shallowly bisinuate with indistinct flattening in front of scutellum; base with two pairs of small and shallow but distinct antebasal pits ( Fig. 101 View FIGURES 99 – 102 ; abp), only inner pair connected by narrow antebasal groove ( Fig. 101 View FIGURES 99 – 102 ; abg). Punctures on pronotal disc fine but distinct, separated by spaces 1.5–2 × as wide as diameters of punctures; setae short, moderately dense, nearly recumbent ( Figs 99, 101 View FIGURES 99 – 102 ).

Elytra ( Figs 99, 101 View FIGURES 99 – 102 ) elongate oval, moderately convex, EL about 0.58 mm, EW about 0.30 mm, EI about 1.46; punctures and setae similar to those on pronotum ( Figs 99, 101 View FIGURES 99 – 102 ) but slightly denser.

Legs ( Figs 100, 102 View FIGURES 99 – 102 ) moderately long, slender, unmodified; all tibiae straight or weakly curved. Remarks. See remarks for Cephennomicrus sp. 3.