Resources:
Theridiidae  Sundevall, 1833 / Theridion  Walckenaer, 1805   63 species

Theridion nasutum Wunderlich, 1995

Description
Male

Prosoma with ocular area projecting forward. Prosoma 1.1 mm long. Opisthosoma almost black, with a whitish patch above spinnerets.

Body length male: 2.1 mm
Female

Epigyne very similar to that of T. mystaceum. Vulva: wall of receptacles very thick. Prosoma dark brown, or yellow-brown with a dark median band and dark margin. Prosoma 0.95-1.1 mm long. Sternum as wide as long. Legs yellow-brown, with more or less dark annulations. Opisthosoma: colouration variable, whitish to dark grey, dorsally with a median dentate band, ventrally with a large whitish patch on posterior half.

Body length female: 2.4-3.5 mm
Additional information

Under bark, under stones and on shrubs.

Distribution
  Presence
  No data
Global distribution (WSC 2026): Italy (Sardinia)
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Italy / Sardinia   (Isaia et al., 2025) |||
References

Isaia M, Tolve M, Pantini P (2025) Araneae.it: 2.0: the new updated version of the digital catalog of the Italian spiders and other arachnids (Arachnida: Araneae, Opiliones, Scorpiones, Pseudoscorpiones, Palpigradi, Solifugae). Fragmenta Entomologica 57: 197-204 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.5.2026) doi: 10.24436/2 pdf

Wunderlich J (1995a) Zur Kenntnis der Endemiten, zur Evolution und zur Biogeographie der Spinnen Korsikas und Sardiniens, mit Neubeschreibungen (Arachnida: Araneae). Beiträge zur Araneologie 4: 353-383 pdf