Published September 24, 2021 | Version v1
Taxonomic treatment Open

Rovnoxestus DIETRICH & DMITRIEV & PERKOVSKY 2021, gen. nov.

Description

Rovnoxestus gen. nov.

(Figs 1–4)

Type species. Rovnoxestus rasnitsyni sp. nov. here designated.

Etymology. The genus name, a masculine noun, was formed by combining the name of the fossil amber, Rovno, with an abbreviation of the name of a possibly related modern genus, Xestocephalus; from Greek: ξεστός, smooth, polished.

Diagnosis. The new genus differs from other fossil and modern cicadellid genera in having the following combination of traits: head slightly broader than pronotum with anterior margin slightly produced and rounded to face, ocelli on anterior margin well separated from eyes, lateral frontal sutures extended to ocelli; forewing fully developed, venation somewhat elevated and complete, appendix very narrow; hind wing well developed with submarginal vein narrowly separated from apical margin; front tibia with stout anteroventral seta near midlength; hind femur macrosetal formula 2+2+1, tarsomere I with elongate ventromesal seta at apex.

Rovnoxestus resembles Xestocephalites Dietrich & Gonçalves, 2014 from Eocene Baltic amber in overall habitus and in having a stout anteroventral seta near the midlength of the front femur, but differs in having the head wider than the pronotum, the pronotum relatively long, the hind femur macrosetal formula 2+2+1, and hind tarsomere I with an elongate ventroapical seta.

Notes

Published as part of DIETRICH, CHRISTOPHER H., DMITRIEV, DMITRY A. & PERKOVSKY, EVGENY E., 2021, A new leafhopper (Hemiptera: Cicadellidae) from late Eocene Rovno amber described based on an adult and associated last-instar nymph from Perebrody (Ukraine), pp. 445-452 in Palaeoentomology 4 (5) on page 446, DOI: 10.11646/palaeoentomology.4.5.10, http://zenodo.org/record/5530161

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Linked records

Additional details

Biodiversity

Family
Cicadellidae
Genus
Rovnoxestus
Kingdom
Animalia
Order
Hemiptera
Phylum
Arthropoda
Scientific name authorship
DIETRICH & DMITRIEV & PERKOVSKY
Taxonomic status
gen. nov.
Taxon rank
genus
Taxonomic concept label
Rovnoxestus DIETRICH, DMITRIEV & PERKOVSKY, 2021

References

  • Dietrich, C. H. & Goncalves, A. C. (2014) New Baltic amber leafhoppers representing the oldest Aphrodinae and Megophthalminae (Hemiptera, Cicadellidae). European Journal of Taxonomy, 74, 1 - 13. https: // doi. org / 10.5852 / ejt. 2014.74