Hasarius adansoni

Adanson's House Jumper
male H. adansoni
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Arachnida
Order:	Araneae
Suborder:	Araneomorphae
Family:	Salticidae
Genus:	Hasarius
Species:	H. adansoni
Binomial name
Hasarius adansoni (Audouin, 1826)
Synonyms
Attus tardigradus Attus forskaeli Attus capito Salticus oraniensis Salticus striatus Salticus ruficapillus Attus nigro-fuscus Salticus citus Plexippa nigrofusca Plexippus adansoni Eris niveipalpis Salticus scabellatus Plexippus ardelio Euophrys nigriceps Hasarius citus Jotus albocircumdatus Hasarius garetti Ergane signata Cyrba picturata Cyrene fusca Hasarius albocircumdatus Sidusa borealis Evarcha longipalpis Phiale fusca Tachyskarthmos annamensis Nebridia borealis Jacobia brauni Vitia albipalpis

Hasarius adansoni, also called Adanson's House Jumper, is a species of jumping spider.

Distribution

H. adansoni is found in warmer climates around the world, for example Japan, Taiwan and Australia. It has also been introduced worldwide in greenhouses and similar places, for example in several German zoos. In China it is distributed in the provinces of Gansu, Guangxi, Guangzhou and Yunnan.

Appearance

male H. adansoni, top view

female

Females grow up to 8mm, males up to 6mm.

The males are mostly black, with a red "mask" and pedipalps that are partly white. A white crescent is present on the back part of the abdomen, and another one on the front part of the opisthosoma. There are two small white dots on the posterior back, and two even smaller ones towards the end. These white areas - especially on the pedipalps - have a nacre-like iridescence.

Females are dark brown, with a lighter and somewhat rufous opisthosoma.

Habits

male H. adansoni retreat

These spiders build a silken retreat at night, which is are about twice the length of the animal. Although the same retreat is sometimes reused, others are built in the vicinity.

Male individuals have been seen to feed on immature females, although this may be by accident.

Name

The species is named after the French naturalist Michel Adanson.

References

• Audouin, V. (1826). Explication sommaire des planches d'arachnides de l'Egypte et de la Syrie publiées ... in "Description de l'Egypte...". Histoire Naturelle 1(4):1-339 (arachnids, pp. 99–186).
• Patoleta, B. & Zabka, M. (1999). Salticidae (Arachnida, Araneae) of Islands off Australia PDF
• Peng, X-J. & Li, S. (2004). The Jumping Spiders from Dali, Yunnan, China (Araneae:Salticidae). The Raffles Bulletin of Zoology 52(2):413-417. PDF
• Duffey, E. (1964). The Terrestrial Ecology of Ascension Island. The Journal of Applied Ecology 1(2):219-251. PDF

External links

• Pictures of H. adansoni
• Pictures of female and male