Hakka (genus)

Hakka
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Arachnida
Order:	Araneae
Family:	Salticidae
Subfamily:	Heliophaninae
Genus:	Hakka Berry & Prószyński, 2001
Species:	H. himeshimensis
Binomial name
Hakka himeshimensis (Dönitz & Strand), 1906)
Synonyms
Menemerus himeshimensis Salticus koreanus Icius himeshimensis Pseudicius himeshimensis

Hakka is a genus of the spider family Salticidae (jumping spiders). It includes a single species, Hakka himeshimensis. H. himeshimensis is endemic to East Asia, but has been introduced to the United States. It is most commonly found in rocky coastal habitats.^[1]

Description

Palpal organ of male Hakka himeshimensis

Both sexes have a body length of about 7 mm. The body and legs are uniformly dark brown. The body is covered with sparse lighter hairs. Between the eyes there are longer, reddish hairs that stand up diagonally. The chelicerae are brown and robust.^[2]

Distribution

The only described species of this genus occurs in China, North Korea, Japan, Hawai'i, and the Eastern United States.^[1][2] It is not clear if there is a viable population in Hawai'i, or if the found specimens represent incidental recent arrivals (although three specimens were collected over a period of 74 years).^[2] It is likely that the species was accidentally introduced to the Eastern United States by maritime shipping.

Name

The genus name is derived from Hakka, a Chinese people with 70 million worldwide. Many members were brought to Hawai'i as laborers on sugar cane plantations in the middle of the 19th century.^[2] This is probably a reference to the species' origin in Asia.

Footnotes

1. ^ ^{a b} Kaldari et al. 2011
2. ^ ^{a b c d} Berry & Proszynski 2001

References

• Berry, James W. and Jerzy Prószyński (2001). "Description of Hakka, a new genus of jumping spiders (Araneae, Salticidae) from Hawaii and east Asia". Journal of Arachnology 29(2): 201-204. Abstract - PDF
• Kaldari, Ryan, G. B. Edwards, and Richard K. Walton (2011). "First records of Hakka (Araneae: Salticidae) in North America". Peckhamia (94.1): 1–6.

Further reading

• Bösenberg, W. & Strand, E. (1906): Japanische Spinnen. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 30:93-422.

External links

• Diagnostic drawings of H. himeshimensis