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Woodlouse spider

Dysdera crocata

Om navnet: Its common names come from its main prey, woodlice, which are also called sowbugs, pillbugs and slaters.1

HarmløsHarmløs for mennesker. Intet at bekymre sig om.

Edderkopper

BidSpiser: Kød

Fare for mennesker: MildSom et bistik eller mindre. Stort set harmløst for mennesker.

The woodlouse spider is a small spider that hunts woodlice, the small grey creatures that curl up when touched. It lives in warm places under logs, stones and plant pots, and it is now found on almost every continent except Antarctica. It is a skilled hunter with large fangs, but it is not known to be a health risk to people.1

Lever i

Originally from the Mediterranean; now found from Eurasia to parts of North and South America, South Africa, Australia and New Zealand1

Europa

Forside

It is usually found under logs, rocks, bricks, plant pots and in leaf litter in warm places, often close to woodlice. It has also been found inside houses. During the day it rests in a silk retreat in crevices, usually in partly rotten wood, or in tent-like shelters in the hollows of large rocks.1

Længde

9 mm til 1,5 cm (0,4 in til 0,6 in)1

Tophastighed

cirka 0,86 km/t (0,53 mph)

På land, groft gæt

Hvad spiser det?

It mainly eats woodlice. It uses its large fangs to get past the tough outer shell and injects venom into the soft underside, avoiding the woodlouse's unpleasant defensive chemicals. It also eats silverfish, earwigs, millipedes, burying beetles, crickets and other spiders and centipedes.1

Foto af Woodlouse spider — Woodlouse spider. Foto: Meghan Cassidy. CC BY-SA 4.0, iNaturalist.

Sådan genkender du det

Six eyes.1
A tawny orange to dark red head and chest section (cephalothorax) and legs.1
A shiny, pale beige to yellow-brown abdomen, which can be dark grey and sometimes very shiny.1
Very large fangs (chelicerae) for a spider of its size.1
Adult females are 11 to 15 mm long, and males are 9 to 10 mm long.1

Forveksles ofte med: The woodlouse spider can be hard to tell apart from Dysdera erythrina, which is much less common. D. erythrina is not usually found near human homes, so location can help.1

Giftkraft

Bid

Giften kommer ud gennem gifttænderne eller tænderne, når det bider.

Hvad gør dets gift, når det bider eller stikker?

It injects venom through its fangs to subdue its prey. In people, bites have been known to cause localised itching at the bite site.1

Hvor farligt er det for mennesker?

Fare for mennesker: MildSom et bistik eller mindre. Stort set harmløst for mennesker.

It is a dangerous predator for woodlice but is not known to be a health hazard to humans or smaller animals. It has been known to bite people if handled. Verified bites have caused no major medical problems.1

Hvis det bider

Vask biddet, og læg en ispose på mod smerterne. Få lægehjælp, hvis smerterne er stærke, breder sig, eller personen har det dårligt.

Ring altid først til dit alarmnummer (112, 000, 911). Dette er generel førstehjælpsvejledning, ikke lægelig rådgivning. Grundlæggende førstehjælp

Pas på dig selv

Rør aldrig ved, fang eller dril et vildt dyr, heller ikke et lille et, og heller ikke hvis det ser ud til at sove eller være dødt.
Giv det plads. Hvis du møder et, så bliv rolig, træd langsomt tilbage, og lad det gå sin egen vej.
Hvis et bider dig: Bevar roen, hold dig i ro, ring til dit alarmnummer (112, 000, 911), eller kom hurtigt på hospitalet. Husk, hvordan det så ud, et billede hjælper.

Det er ikke ude efter dig. Det bruger sin gift til at fange føde eller beskytte sig selv, og det gemmer sig meget hellere. Mere om sikkerhed

Hvor i verden?

Afrika Asien Europa Nordamerika Sydamerika Australien & Oceanien

Hvor stort er det?

Hvor langt er det?

kortere end din lillefinger

Hvor stor er Woodlouse spider i forhold til DIG?

Bare matematik i din browser. Intet bliver gemt eller sendt nogen steder hen.

Hvor hurtigt er det?

En skildpadde cirka 0,3 km/t (0,19 mph)

Woodlouse spider cirka 0,86 km/t (0,53 mph)

Et menneske, der går cirka 5 km/t (3,1 mph)

værd at vide

Fakta

It is an unusually dominant predator for its size because of its large fangs and wide gape.1

It often dominates and sometimes kills other spiders and centipedes.1

Courtship is typically aggressive, and mates can be injured by each other's large fangs.1

It hunts at night and does not spin a web. Instead, it searches warm places for prey.1

Although it began in the Mediterranean, it is now found on several continents, including Australia and New Zealand.1

Myteknuser

Myte: Woodlouse spiders are dangerous to people.

Sandhed: They are not known to be a health hazard to humans. They can bite if handled, but verified bites have not caused major medical problems.1

For gifteksperter

Videnskabeligt navn: Dysdera crocata
Gruppe: Edderkopper
Familie: Dysderidae2
Orden: Araneae
Kontinenter: Europa
Unger: The female lays her eggs in a silk sac, which can hold up to 70 eggs. She is believed to look after her young after they hatch.1
Fare for mennesker: 1 / 5: Mild3

Hvor fakta kommer fra

Woodlouse spider (Wikipedia (CC BY-SA 4.0))
Dysdera crocata (iNaturalist): navne og klassifikation.
Venom Wiki: fareniveauet, den typiske størrelse og hastighedsgættet er vores egne. Se, hvordan vi regner dem ud: Sådan vurderer vi faren.

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