Platystethus

Mannerheim, 1830

spiny-legged rove beetles

Species Guides

Platystethus americanus(spiny-legged rove beetle)
Platystethus degener(spiny-legged rove beetle)
Platystethus spiculus

Platystethus is a of spiny-legged rove beetles in the Staphylinidae, Oxytelinae. The genus contains approximately six described distributed across multiple continents. At least one species, P. arenarius, has been documented exhibiting sub-social . Members of this genus are characterized by modified hind legs with spiny projections.

Pronunciation

How to pronounce Platystethus: //plæˈtɪstɛθəs//

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Identification

Platystethus are distinguished from other Oxytelinae by their spiny hind legs, a trait referenced in their . The can be separated from related genera by leg and genitalic characters, though specific diagnostic features require examination of and detailed taxonomic keys.

Distribution

The has a broad distribution with records from North America, Europe, and other regions. Specific distributional data is documented for P. americanus in North America and P. arenarius in Europe.

Behavior

Sub-social has been documented in P. arenarius, including parental care and cooperative breeding. This represents one of the few documented cases of sub-sociality within Staphylinidae.

Similar Taxa

Other Oxytelinae generaPlatystethus is distinguished by its spiny hind legs, whereas related lack this modification or show different leg morphologies.

More Details

Sub-sociality documentation

The sub-social of P. arenarius was among the earliest documented cases of parental care in rove beetles, studied in a 1944 publication by G. J. Hinton. This behavior includes guarding and of larvae.

Taxonomic history

The was established by Mannerheim in 1830. The six currently recognized include both extant species and fossil species described from Baltic amber (P. archetypus, P. carcareus).