Oxytelinae

Fleming, 1821

Spiny-legged Rove Beetles

Tribe Guides

Blediini
Coprophilini
Euphaniini(spiny-legged rove beetles)
Oxytelini(spiny-legged rove beetles)

Oxytelinae is a of rove beetles (Staphylinidae) comprising approximately 20 and at least 320 described . Members possess a unique pair of defensive glands that open onto the ninth . They are commonly found in moist including streamside moss, leaf litter, beaches, and . The subfamily is distributed worldwide with notable diversity in the Nearctic (17 genera, 262 species in North America) and Palearctic regions.

Thinodromus by (c) Justin Williams, some rights reserved (CC BY), uploaded by Justin Williams. Used under a CC-BY license.

Bledius albonotatus by (c) Jared Shorma, some rights reserved (CC BY), uploaded by Jared Shorma. Used under a CC-BY license.

Bledius albonotatus by (c) Trevor Van Loon, some rights reserved (CC BY), uploaded by Trevor Van Loon. Used under a CC-BY license.

Pronunciation

How to pronounce Oxytelinae: /ˌɒksɪˈtɛlɪniː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from other Staphylinidae by the presence of defensive glands opening onto the ninth . Tarsal segmentation patterns (2-2-2, 3-3-3, 4-4-4, or 5-5-5) provide diagnostic characters at the generic level. Most show seven complete visible sterna. may be separated by size (normal vs. microphthalmous), body proportions, and male genitalia.

Images

Habitat

Primarily associated with moist microhabitats: moss along streams, leaf litter, beaches, and riparian zones. Many are coprophilous, with highest diversity documented in cow and associated EUNIS types E3.4 (pastures and grasslands with grazing), G1.7 (deciduous forests), and G3.5 (coniferous forests). River banks and estuarine areas also support .

Distribution

distribution with documented records from North America (17 , 262 ), Europe, Turkey, Russia (southern European part, including Rostov Oblast, Krasnodar Krai, and Karachaevo-Cherkessian Republic), and Central Asia. Three species newly recorded from Turkey: Anotylus rugifrons, A. sexualis, and Oxytelus pseudopiceus.

Diet

Nutritional requirements linked to coprophilous habits; many collected from cow . Specific feeding substrates and nutritional hypothesized as primary determinants of associations, though direct dietary observations are limited.

Behavior

Collected using sieving, hand collecting, and netting methods in moist substrates. Defensive gland secretions likely used for chemical defense. Microphthalmous in such as Aploderus suggest possible subterranean or endogean habits, though this remains to be confirmed.

Similar Taxa

Other Staphylinidae subfamiliesOxytelinae distinguished by unique defensive glands on ninth ; other lack this specific gland arrangement and show different tarsal and sternal patterns.

More Details

Taxonomic note

The contains approximately 20 globally, with some discrepancy in counts between sources (Wikipedia reports 20 genera; iNaturalist reports 17 for North America specifically).

Research gaps

Ecological and biological data remain sparse for most . , , and detailed roles are poorly documented in available literature.