Adanson's house jumper is a small jumping spider that lives indoors and around buildings in warm places worldwide. Males are black with a reddish face, white crescent marks, and partly white ; females are brown. It has spread around the globe with people, and in the US it has long been recorded in Hawaii.

Appearance

Appearance
Females are about 1/4 to 1/3 in (6–9 mm) long, males about 1/5 to 1/4 in (5–7 mm). The male's white markings, especially on the palps, have a pearly shine.

Where it lives

Typical habitats
  • Inside houses
  • Building walls
  • Greenhouses
Range
Found across the tropics and subtropics, and carried by people to many other places, where it often lives in greenhouses. In the US it has been recorded on several Hawaiian islands, including Kauai, Oahu, and the Big Island.
Preferred conditions
Favors buildings, especially bright windowsills.

Behavior

Activity
Hunts by stalking and pouncing instead of spinning a web. At night it builds a small silk retreat about twice its body length to rest in.
Social life
A courting male holds his front legs out at an angle and zigzags toward the female.

Conservation

IUCN Red List
LCLeast ConcernLow risk of extinction

Culture and stories

Culture and stories
  • Named for the French naturalist Michel Adanson.

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Adanson's House Jumper (Hasarius adansoni) — identification, habitat & look-alikes | Moeyo