Giant house spider — size comparison

The giant house spider is associated with Europe and has also been introduced to North America. It occurs in buildings, but also outdoors under roots, stones an

Silhouette comparison

Length

od przodu głowotułowia do końca odwłoka · bez nóg, nogogłaszczków i wysuniętych szczękoczułkówScale for the stated dimensions · each animal is labelled

Giant house spider

Eratigena atrica

15 mmAdult female
Body length

od przodu głowotułowia do końca odwłoka · bez nóg, nogogłaszczków i wysuniętych szczękoczułkówMeasurement: side

The stated dimensions share a scale without a common ground line. Bank card · long edge 8.56 cm
Measurement comparisonScale in cm
0246810
Giant house spiderBody length15 mm
Bank cardLong edge of the card8.56 cm

The scale compares the named dimensions. View direction and measurement points are given for each animal.

Scale based on the stated dimensions for each animal

Bank card · long edge 8.56 cm
Giant house spider — size comparison — facts and sources

The giant house spider is associated with Europe and has also been introduced to North America. It occurs in buildings, but also outdoors under roots, stones and other cover. Its brown body, long legs and paler abdominal markings help it blend into its surroundings.

It spins a flat sheet web leading into a funnel-shaped retreat. The threads need not be sticky: their vibrations alert the hunter to an insect entering the trap's surface. The spider rushes out of its shelter and seizes the prey, which it may then carry back under cover.

Measurement sources