Philodromus rufus quartus

Dondale & Redner, 1968

Philodromus rufus quartus is a of running crab described by Dondale & Redner in 1968. It belongs to the Philodromidae, a group of active hunters that do not build webs to capture . The subspecies is distributed across a broad Palearctic range including France, Korea, and parts of Russia and Central Asia. As a member of the Philodromus rufus , it exhibits the characteristic laterigrade leg posture and flattened body form typical of bark-dwelling crab spiders.

Pronunciation

How to pronounce Philodromus rufus quartus: /ˌfɪləˈdroʊməs ˈruːfəs ˈkwɔːrtəs/

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Identification

As a of Philodromus rufus, P. r. quartus would require examination of genitalic for definitive identification. The Philodromus rufus group is taxonomically challenging, with subtle morphological differences separating subspecies. Accurate identification typically requires reference to the original description (Dondale & Redner, 1968) and comparison with .

Distribution

France; Korea; North America (records require verification), Europe, Turkey, Caucasus, Russia (European Russia to Far East), Kazakhstan, Iran, Central Asia, Mongolia, China, Korea, Japan. GBIF records indicate occurrence in France and Korea specifically for this . The broader P. rufus has a wide Palearctic distribution.

Similar Taxa

Philodromus rufus rufusThe nominate ; distinguished by subtle morphological differences in and geographic distribution
Other Philodromus rufus subspeciesMultiple have been described within P. rufus; accurate identification requires specialist examination
Philodromus speciesCongeneric share similar habitus and preferences; definitive identification requires genitalic examination

More Details

Taxonomic note

Philodromus rufus quartus was described by Canadian arachnologists Charles Dondale and James Redner in 1968. Dondale and Redner produced foundational taxonomic works on North American Philodromidae.

Data limitations

This has limited published biological data. Most iNaturalist observations (11 records) are not identified to subspecies level. The broad geographic distribution listed in some sources may reflect records of the P. rufus rather than confirmed subspecific identifications.