Woodlouse spider
Dysdera crocata
13 mmAdult female
Body length
Body length
od przodu głowotułowia do końca odwłoka · bez nóg, nogogłaszczków i wysuniętych szczękoczułkówMeasurement: side
Woodlouse spider — size comparison
The woodlouse spider has a reddish cephalothorax, a pale elongated abdomen and prominent chelicerae. It is widespread, including in human-altered environments.
Silhouette comparison
Length
od przodu głowotułowia do końca odwłoka · bez nóg, nogogłaszczków i wysuniętych szczękoczułkówScale for the stated dimensions · each animal is labelled
Measurement comparisonScale in cm
0246810
13 mm
8.56 cm
The scale compares the named dimensions. View direction and measurement points are given for each animal.
Woodlouse spider — size comparison — facts and sources
The woodlouse spider has a reddish cephalothorax, a pale elongated abdomen and prominent chelicerae. It is widespread, including in human-altered environments. It spends the day in a silk retreat beneath a stone, piece of wood or similar cover.
At night it leaves the retreat and hunts without a capture web. It often eats woodlice but can also take other prey. Long chelicerae help grip prey despite its hard external armour.
Females are larger than males. Similarity to other Dysdera species means that a red front and pale abdomen alone are not always sufficient for reliable identification.