Oxyopes salticus

Oxyopes salticus is a species of lynx spider, commonly known as the striped lynx spider, first described by Hentz in 1845. Its habitat tends to be grasses and leafy vegetation; grassy, weedy fields, and row crops.[1]

Oxyopes salticus
Female O. salticus from Nashville, Tennessee
Male O. salticus from Hilo, Hawaii
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Oxyopidae
Genus: Oxyopes
Species:
O. salticus
Binomial name
Oxyopes salticus
(Hentz, 1845)
Synonyms

O.astutus
O. gracilis

Description

Adult specimens have some color variation between orange, cream and brown. Adult females typically have stripes on both the carapace and abdomen, though on many specimens, the stripes are more pronounced on the abdomen. There is a generally a diamond cardiac mark, and macrosetae covering legs I-IV. There is a broad clypeus. Adult females range in size from ~5-6mm, and adult males range in size ~4-5mm.

Range

Eastern United States from Massachusetts and Iowa south to Florida and Texas, along Mexican border, north along Pacific coast to Oregon. Also much of South and Central America[1] Recently, O.salticus has been found in great numbers on the Big Island of Hawai'i as well as the island of Maui (see picture to the right).[2]

Agricultural importance

A number of authors (Brady 1964, Laster and Brazzel 1968, McDaniel et al. 1981, Young and Lockley 1985) have noted the importance of Oxyopids as a major predator of economically important agricultural pests. In 1961, Kayashima released 45,000 O. sertatus spiders into a Cryptomeria forest in Japan (in a test plot) and noted a 53% reduction in damage by Contarinia inouyei.[3] Other studies in India (Sharma & Sarup, 1979; Rao et al., 1981) have noted similar results.[4] However, some studies note that O. salticus (and other Oxyopids) also predate beneficial insects (e.g., bees and other pollinators), so their importance in pest control is somewhat questioned.[5]

  • O. salticus male.
  • O. salticus male (oblique)
  • on Okra stem
  • on Okra leaf

Footnotes
  1. Brady 1964
  2. Insects of Hawai'i Website
  3. Kayashima 1961
  4. Young & Lockley 1985
  5. Weems 2001
gollark: You can't be aware of unknown unknowns, by definition.
gollark: Your 99% figure is nonsensical since you can't tell what you don't know in much detail.
gollark: You only got 84% of the ones we *deliberately* allowed you to know about.
gollark: I didn't even have to attack the logging for this since your navigation stuff is bad and spoofable easily.
gollark: Oh yes, your """secure""" and ""impossible to manipulate"""" logging.

References
  • Platnick, Norman I. (2009): The world spider catalog, version 9.5. American Museum of Natural History.
  • Brady, A.A. (1964). The lynx spiders of North America, North of Mexico (Araneae: Oxyopidae). Bulletin of the Museum of Comparative Zoology. 131: 429-518.
  • Kayashima, I. (1961). Study of the lynx spider, Oxyopes sertatus L. Koch, for biological control of the crytomerian leaf fly (Contarina inouyei Mani). Review of Applied Entomology, Series A, 51. 413.
  • Weems, H. V. Jr. and Whitcomb, W. H. Green Lynx Spider, Peucetia viridans (Hentz) (Arachnida: Araneae: Oxyopidae). EENY-249 Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: November 2001. Revised March 2011.
  • Young, O.P.; Lockley T.C.(1985). The striped lynx spider,Oxyopes salticus [Araneae: Oxyopidae], in agroecosystems. Entomophaga 30(4): 329-346. Abstract
  • Starr, Kim; Starr, Forrest. "Insects of Hawai'i". Retrieved 16 March 2014.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.