Steatoda erigoniformis (O. Pickard-Cambridge, 1872 )

Alioua, Youcef & Bosmans, Robert, 2024, Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria, Zootaxa 5497 (3), pp. 301-336 : 326-327

Steatoda erigoniformis (O. Pickard-Cambridge, 1872) ( Figs. 14a–c )

Theridion erigoniforme ; O. Pickard-Cambridge 1872: 284.

Steatoda signata ; O. Pickard-Cambridge 1876: 568.

Crustulina signata ; Simon 1881: 161.

Lithyphantes septemmaculatus ; Keyserling 1884: 141.

Asagenella erigoniformis ; Levi & Levi 1962: 60.

Steatoda erigoniformis ; Levi 1962: 25.

For a complete list of taxonomic references, please see the World Spider Catalog (2024).

In Algeria, the genus Steatoda Sundevall, 1833 is represented by 8 species: S. albomaculata (De Geer, 1778) , S. ephippiata ( Thorell, 1875) , S. grossa (C. L. Koch, 1838) , S. latifasciata (Simon, 1873) , S. moerens ( Thorell, 1875) , S. nobilis ( Thorell, 1875) , S. paykulliana (Walckenaer, 1805) and S. triangulosa (Walckenaer, 1802) . S. erigoniformis occurs in many countries over the world, in the Middle East, East Mediterranean, to reach the far

East in China and Japan ( World Spider Catalog 2024), but in North Africa, the species is known only from Egypt ( Bosmans & Hervé 2021).

Material examined: EL GUERRARA: Aghzou, pitfall traps, 7 ♂, 22.II.2020; 1 ♂, 3.III.2020 ; 2 ♂, 17.III.2020. El Amied, pitfall traps, 1 ♂, 7.II.2020.

Previous records in Algeria: New record for Algeria.

Distribution: East Mediterranean, Middle East, Caucasus, India, China, Korea, Japan. Introduced to USA, Caribbean, Venezuela, Cabo Verde, South Africa ( World Spider Catalog 2024).

Figures

FIGURE 14a–c. Steatoda erigoniformis, (a) Dorsal view of the male, (b) Male palp, prolateral view, (c) Idem, ventral view.