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TaxonomyBrowse
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Genus Peckhamia

Antlike Jumping Spider - Peckhamia Peckhamia americana (Salticidae) - Peckhamia americana - female Antlike Jumping Spider - Peckhamia - male Spider (ant mimic) (Peckhamia sp.?) - Peckhamia Ant-mimic - Peckhamia - female ant mimic jumper - Peckhamia - male ant mimic jumper - Peckhamia - male Peckhamia  - Peckhamia - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynes )
Family Salticidae (Jumping Spiders)
Genus Peckhamia
Synonyms and other taxonomic changes
Peckhamia Simon, 1901
Explanation of Names
The genus is named in honor of arachnologists George and Elizabeth Peckham (Wikipedia).
Numbers
Four described species and several undescribed species in North America (B. Cutler - pers. comm.):
Peckhamia americana (Peckham et Peckham, 1892) Mexico, USA
Peckhamia picata (Hentz, 1846) USA, Canada
Peckhamia scorpionia (Hentz, 1846) USA, Canada
Peckhamia seminola Gertsch, 1936 USA: Florida
Size
2.5 - 5 mm
Identification
Small, elongated jumping spiders with a constricted abdomen, apparently mimics of ants.

"Peckhamia may be easily confused with Synageles, but in Peckhamia, the carapace is not as flat, being more convex in the cephalic area, and has a sharp declevity [sic] behind the row III eyes" (1). Most Peckhamia have three pairs of ventral spines on leg I tibia (most Synageles have two pairs). The eye region occupies half of the carapace in Peckhamia and more than half the carapace in Synageles. There are also differences in the genitalia - males of Peckhamia show a spiraled embolus, while Synageles males show an embolus in the form of a "simple straight rod, curved arc, or short spike". The epigynum in Peckhamia females has sclerotized anterior rims in the form of two arcs (lacking in Synageles).
Range
genus restricted to New World, presumably
Remarks
Several changes made to this page at the suggestion of Tim Manolis and also inspired by email correspondence between Tim and B. Cutler - Sept. 2013 (KS).

"According to the salticid experts, all Peckhamia west of the Great Plains are undescribed species." -Dr. Lenny Vincent via email correspondence 05/03/2017
See Also
Synemosyna--another ant mimic
Sarinda--another ant mimic
Print References
Kaston, p. 245, fig. 624--Peckhamia picata (2)
B. Cutler, 1987 (1)
Spiders of North America (3)
Internet References
Wikipedia--Peckhamia
Works Cited
1.A revision of the American species of the antlike jumping spider genus Synageles (Araneae, Salticidae)
Bruce Cutler. 1987. Journal of Arachnology 15(3): 321-348.
2.How to Know the Spiders
B. J. Kaston. 1978. WCB/McGraw-Hill.
3.Spiders of North America: An Identification Manual
D. Ubick, P. Paquin, P.E. Cushing and V. Roth (eds). 2005. American Arachnological Society.