Euroleptochromus Jałoszyński

Paweł Jałoszyński, 2018, World genera of Mastigitae: review of morphological structures and new ecological data (Coleoptera: Staphylinidae: Scydmaeninae), Zootaxa 4453 (1), pp. 1-119 : 62-63

† Euroleptochromus Jałoszyński

Euroleptochromus Jałoszyński, 2012 b: 351. Type species: Euroleptochromus sabathi Jałoszyński, 2012 b (orig. des.).

Diagnosis. Euroleptochromus differs from all remaining Leptochromini in the following unique apomorphies: maxillary palpomere II with short and broad submedian protuberance bearing apical bristles; and maxillary palpomere IV suboval and only about twice as long as broad. Additionally, a long cuticular process bearing apical bristles is present on each postgena (shared with some Leptochromus , but not with Rovnoleptochromus ).

Composition and distribution. Euroleptochromus ( Fig. 111 ) comprises two extinct species known from the Upper Eocene Baltic amber.

Remarks. Euroleptochromus , except for characters listed in the diagnosis, closely resembles Leptochromus in all remaining structures.

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)).