Trogastrina
Brendel & Wickham, 1890
Genus Guides
4- Conoplectus
- Euboarhexius
- Oropus
- Rhexidius(ant-loving beetles)
Trogastrina is a subtribe of minute rove beetles within the Staphylinidae, Pselaphinae. These beetles belong to the tribe Trogastrini and are characterized by their small body size and association with leaf litter and soil . The subtribe was established by Brendel and Wickham in 1890. Members of this group are part of the diverse Euplectitae clade, one of the most -rich lineages within Pselaphinae.
Pronunciation
How to pronounce Trogastrina: /troʊˈɡæstrɪnə/
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Habitat
within Trogastrina are found in forest floor environments, particularly in leaf litter, soil, and decaying organic matter. These provide the moist, sheltered microenvironments typical for Pselaphinae beetles.
Distribution
The subtribe occurs in multiple regions, with documented observations from North America and other temperate areas. The 58 iNaturalist records suggest presence across scattered localities, though comprehensive distribution data is limited.
Ecological Role
As members of the Pselaphinae, beetles in this subtribe likely contribute to nutrient cycling through their activity in decomposing organic matter. Their role in forest floor is poorly documented but may include on small and microbivory.
Similar Taxa
- Other Euplectitae subtribesTrogastrina can be distinguished from related subtribes within Trogastrini and other Euplectitae by subtle morphological characters of the , pronotum, and abdominal segments, though precise identification requires specialized taxonomic expertise.
More Details
Taxonomic notes
Trogastrina is one of several subtribes within the tribe Trogastrini. The subtribal classification of Pselaphinae has undergone significant revision, and some authorities may treat these groups differently. The group is morphologically defined by characteristics of the mouthparts, , and abdominal tergites.