A revision of the genus Xanthopygus Kraatz (Staphylinidae: Xanthopygina).

The genus Xanthopygus Kraatz 1857 sensu Chatzimanolis 2021 is revised and the distributional records for all species are updated. Lampropygus giganteus Bernhauer is shown to be a junior synonym of Staphylinus luctuosus Blanchard. Neotypes are designated for Belonuchus pexus Motschulsky and Xanthopygus oliveirae Lynch.

Out of (Coleoptera: Staphylinidae): escape from polyphyly.

as currently defined is the largest genus in the subtribe Xanthopygina (Coleoptera: Staphylinidae: Staphylininae) with 40 described species. However, the genus is poorly defined, morphologically heterogeneous and previous studies have questioned whether it is a natural group. A morphological (51 characters) Bayesian phylogenetic analysis was performed to test whether is a monophyletic group.

Even more new species, additional records, and a revised key for Philothalpus Kraatz (Coleoptera: Staphylinidae: Staphylininae).

Two species of Philothalpus Kraatz are described as new: P. anapodos n. sp.

Peripus, a new genus of Xanthopygina (Coleoptera: Staphylinidae) from South America.

We describe a new genus of Xanthopygina as Peripus gen. n. Chatzimanolis Hightower and include the following species: P.

, a new genus of Xanthopygina (Coleoptera: Staphylinidae: Staphylininae) with description of three new species.

A new genus of Xanthopygina rove beetles is described here as . The new genus includes three new species: , described from Bolivia, described from Costa Rica and Panama, and described from Bolivia, Colombia, Ecuador and Peru. belongs to the group of genera of Xanthopygina and can distinguished from all the genera based on the unique punctation on the pronotum and the long apical setae of the paramere.

A revision of Laporte and Bernhauer (Coleoptera: Staphylinidae: Staphylininae: Xanthopygina).

The species of poorly known but charismatic genera Laporte, 1835 and Bernhauer, 1927 are revised. is considered a junior synonym of , with (Scheerpeltz, 1936) Bernhauer, 1927 is treated as a synonym of Kraatz, 1858. , is described from Paraguay and Brazil.

Dispersal of thermophilic beetles across the intercontinental Arctic forest belt during the early Eocene.

Massive biotic change occurred during the Eocene as the climate shifted from warm and equable to seasonal and latitudinally stratified. Mild winter temperatures across Arctic intercontinental land bridges permitted dispersal of frost-intolerant groups until the Eocene-Oligocene boundary, while trans-Arctic dispersal in thermophilic groups may have been limited to the early Eocene, especially during short-lived hyperthermals. Some of these lineages are now disjunct between continents of the northern hemisphere.

New species and synonymies in Bernhauer (Coleoptera: Staphylinidae: Staphylinini).

Two species are described as new in Xenopygus, X. davidi sp. n.

A revision of the myrmecophilous genus Smilax Laporte (Coleoptera: Staphylinidae: Staphylininae).

The neotropical myrmecophilous genus Smilax is revised and a new species, Smilax deneinephyto Chatzimanolis is described from southern Brazil. Lectotypes are designated for Smilax cyanea Wasmann and Staphylinus pilosus Fabricius. Smilax cyanea is shown to be a junior synonym of Smilax pilosa.

Early evolution of the hyperdiverse rove beetle tribe Staphylinini (Coleoptera: Staphylinidae: Staphylininae) and a revision of its higher classification.

The rove beetle tribe Staphylinini (Staphylinidae: Staphylininae) is a monophyletic lineage of over 5500 relatively large and charismatic species, yet its higher classification remains deeply rooted in historical concepts. Despite recent progress toward inferring phylogenetic relationships within this group using morphological and molecular datasets, relationships among taxa that were united under a polyphyletic "Quediina" remain largely unknown. To infer these relationships, we analysed a six-gene dataset (4370 bp) using parsimony and model-based analyses and the results were placed in the context of morphology.

Sexual dimorphism and allometry in the sphecophilous rove beetle Triacrus dilatus.

The rove beetle Triacrus dilatus is found in the Atlantic forest of South America and lives in the refuse piles of the paper wasp Agelaia vicina. Adults of T. dilatus are among the largest rove beetles, frequently measuring over 3 cm, and exhibit remarkable variation in body size.

A review of the genus Scaponopselaphus Scheerpeltz (Insecta: Coleoptera: Staphylinidae).

Background: The genus Scaponopselaphus Scheerpeltz was originally described to accommodate the species Trigonopselaphusmutator Sharp.

New Information: In this paper, I review Scaponopselaphus and describe a new species from Colombia as Scaponopselaphusdiaspartos n. sp.

Darwin's legacy to rove beetles (Coleoptera, Staphylinidae): A new genus and a new species, including materials collected on the Beagle's voyage.

A species of xanthopygine rove beetles is described and figured here as Darwinilus sedarisi gen. n. and sp.

Terataki, a new genus of Staphylinini (Coleoptera: Staphylinidae: Staphylininae) from South America.

A new genus of Xanthopygina is described here as Terataki gen. n. and includes the following species: Te.

A new species of Diochus from Baltic amber (Coleoptera, Staphylinidae, Diochini).

The first fossil of the staphylinine tribe Diochini Casey is described and figured from an inclusion in mid-Eocene (Lutetian) Baltic amber. Diochus electrussp. n.

From gene-scale to genome-scale phylogenetics: the data flood in, but the challenges remain.

An important goal of phylogenetics is to be able to consistently and accurately reconstruct the historical patterns of cladogenesis among major organismic groups. Gene-scale phylogenetics is insufficient to attain this goal owing to the presence of poor resolution and incongruence in single--and few--gene phylogenies. The increasing availability of genome-scale amounts of data promises to overcome the insufficiency of gene-scale phylogenetics and uncover the genealogical tapestry uniting all living organisms with unprecedented accuracy.

Toward a better understanding of the "Transverse Range break": lineage diversification in southern California.

The Transverse Ranges in southern California have been identified as having a prominent phylogeographic role. Numerous studies have identified distinct north-south and/or east-west lineage breaks involving the Transverse Ranges. However, in evaluating their findings, most authors have regarded this complex system somewhat simplistically.