Transmission of antimicrobial resistance in the gut microbiome of gregarious cockroaches: the importance of interaction between antibiotic exposed and non-exposed populations.

Antimicrobial resistance (AMR) is a major global health concern, further complicated by its spread via the microbiome bacterial members. While mathematical models discuss AMR transmission through the symbiotic microbiome, experimental studies are scarce. Herein, we used a gregarious cockroach, as an animal model for AMR transmission investigations.

A New Termitophilous Genus of Paederinae Rove Beetles (Coleoptera, Staphylinidae) from the Neotropics and Its Phylogenetic Position.

We describe a new genus and species of Paederinae rove beetles, Ruptor cordatus gen. et sp. nov.

Total-evidence analysis resolves the phylogenetic position of an enigmatic group of Paederinae rove beetles (Coleoptera: Staphylinidae).

Paederinae is one of the most diverse subfamilies among rove beetles, yet their evolutionary history remains poorly understood. This is attributed to the limited number of phylogenetic studies, which either sought answers at a shallower taxonomic level or included limited taxon sampling. Especially problematic is the position of the rare Neotropical tribe Cylindroxystini, morphologically one of the most puzzling groups of Paederinae.

Taxonomic notes on the genus Quwatanabius in Taiwan (Coleoptera: Staphylinidae).

The description of the male of the species Quwatanabius chiaw (Smetana, 1995) is provided for the first time, including a habitus photo and illustrations of the aedeagus. A brief discussion of the endemic status of Q. chiaw on the island of Taiwan, as well as additional Taiwanese material of the wide-spread Q.