Genus Tibellus Simon, 1875

Type species.

Aranea oblonga Walckenaer, 1802 from North America, Europe, North Africa, Turkey, Israel, Caucasus, Russia (Europe to Far East), Kazakhstan, Iran, Central Asia, Mongolia, China, Korea, Japan.

Diagnosis.

See Van den Berg and Dippenaar-Schoeman (1994) and Efimik (1999).

Comments.

The genus has been widely considered as putatively monophyletic; it presents a distinct set of characters (Van den Berg and Dippenaar-Schoeman 1994; Efimik 1999; Jang et al. 2023), and its species composition is relatively stable (WSC 2025). However, some species have extraordinarily intraspecific morphological variation and low levels of interspecific variation, and together with the insufficiency of alpha taxonomic information (lacking high-quality illustrations, detailed descriptions, and molecular data), have hindered species recognition and has resulted in several wrong descriptions and misidentifications (Efimik 1999).