Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


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
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).
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
2.5 - 5 mm
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).
genus restricted to New World, presumably
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
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.