Rovnoleptochromus Jałoszyński & Perkovsky

Paweł Jałoszyński, 2018, World genera of Mastigitae: review of morphological structures and new ecological data (Coleoptera: Staphylinidae: Scydmaeninae), Zootaxa 4453 (1), pp. 1-119 : 63

† Rovnoleptochromus Jałoszyński & Perkovsky

Rovnoleptochromus Jałoszyński & Perkovsky, 2016: 10 . Type species: Rovnoleptochromus ableptonoides Jałoszyński & Perkovsky, 2016 (orig. des.).

Diagnosis. Rovnoleptochromus differs from all remaining Leptochromini in one unique apomorphy: maxillary palpomere II lacking cuticular projection but bearing one long bristle; and a combination of characters that, in a different set, occur in other genera: postgenae bearing long bristles but lacking cuticular postgenal processes; maxillary palpomere III broadening from base to apex and with strongly oblique apex; maxillary palpomere IV indistinctly subtriangular, broadest at base; mesocoxal cavities with carinate posterior margins; and metaventrite with a median longitudinal carina.

Composition and distribution. Rovnoleptochromus ( Fig. 112 ) comprises one extinct species known from the Upper Eocene Baltic (Rovno) amber.

Figures

FIGURES 110–112. Leptochromini, examples of extinct species; dorsal (110), lateral (111) and laterodorsal (112) habitus. Leptochromus palaeomexicanus (110; Middle Miocene of Mexico; photo George Poinar); Euroleptochromus setifer (111; Upper Eocene of Europe); Rovnoleptochromus ableptonoides (112; Upper Eocene of Europe; after Jałoszyński & Perkovsky (2016)).