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Genus Evarcha

jumping spider - Evarcha hoyi Jumping Spider - Evarcha hoyi spider - Evarcha hoyi small brown jumping spider - Evarcha proszynskii very small jumper - Evarcha Evarcha hoyi - male Brown Jumper with letter Y - Evarcha proszynskii - female Jumping Spider - Evarcha hoyi - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Salticidae (Jumping Spiders)
Genus Evarcha
Two Evarcha species are currently known from our region: E. hoyi and E. proszynskii.(1) A third species, E. amabilis, is currently listed in the USA(2) but should be considered nomen dubium since its description is based on a single penultimate female(1).[jb]
Tentative placement of Evarcha species images in BugGuide is based on the ranges given by Marusik and Logunov(1). It is possible that they can not be identified from habitus images alone.[jb]
The East African Evarcha culicivora is known not only to prefer blood-fed mosquitos over other available prey(3), but also to specifically prefer blood-fed Anopheles sp. mosquitos(4), which are the only known vectors for Malaria.
Works Cited
1.Taxonomic notes on the Evarcha falcata species complex (Aranei Salticidae)
Marusik, Y. M. and D. V. Logunov. 1997. Arthropoda Selecta 6 (3/4): 95-104.
2.The World Spider Catalog by Norman I. Platnick
3.A spider that feeds indirectly on vertebrate blood by choosing female mosquitoes as prey
Jackson, R. R., X. J. Nelson, and G. O. Sune. 2005. Proceedings of the National Academy of Sciences 102: 15155-15160.
4.A Predator from East Africa that Chooses Malaria Vectors as Preferred Prey
Nelson, X. J. and R. R. Jackson. 2006. PLoS ONE 1(1): e132.