Theridiosoma gemmosum

Description

A small but distinctive spider. Males 1.5-1.6mm, females 2-2.3mm. Prosoma light brown, with fine net-like pattern, eye region darker. Opisthosoma irregularly patterned with black, bright areas strikingly shining pearly. Legs brown, sometimes spotted or annulated with black. Sternum dark brown, slightly brighter medially. Male palp approximately as large as prosoma, very complex. Epigyne with shallow groove covered by robust chitinous bulge. 

Identification difficulty
Recording advice

Detailed photos required. 

Habitat

Damp areas such as marshes and ditches. 

When to see it

Spring-Autumn.

UK Status

Widespread in southern England and often abundant where found, but very local.

VC55 Status

Uncommon. 

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Ray Spider
Species group:
Spiders
Kingdom:
Order:
Family:
Records on NatureSpot:
1
First record:
21/09/2024 (Cann, Alan)
Last record:
21/09/2024 (Cann, Alan)

Total records by month

% of records within its species group

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