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Giant House Spider

Eratigena atrica

Description:

The two sexes do not differ in colouration or markings. Its colouration is mainly dark brown. On its sternum is a lighter marking, with three light spots on each side. The opisthosoma features a lighter middle line with six "spots" on each side. The giant house spider has the same colouration as the domestic house spider, Tegenaria domestica; it has earthy tones of brown and muddy red or yellow. They also have conspicuously hairy legs, palps and abdomen. Despite its English name, this species is not the largest species in the genus (that being Tegenaria parietina). The female body size can reach 18.5 millimetres (0.73 in) in length, with males having a slightly smaller body at around 12 to 15 millimetres (0.47 to 0.59 in) in length. The female leg span is typically around 45 millimetres (1.8 in). The leg span of the male is highly variable, with spans between 25 to 75 millimetres (0.98 to 2.95 in) being common.

Habitat:

It WAS in my house before it was moved outside.

Notes:

The specimen shown is a juvenile.

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Jamie Grant
Spotted by
Jamie Grant

South Hams, England, United Kingdom

Spotted on Apr 11, 2018
Submitted on Apr 11, 2018

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