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Species Falconina gracilis

Falconina gracilis - female Spider BG395 - Falconina gracilis - male Which spider is this? - Falconina gracilis Spider in La Habra California - Falconina gracilis spider - Falconina gracilis Spider - Falconina gracilis Falconina gracilis Entelegyne spider????? - Falconina gracilis
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Corinnidae (Antmimics and Ground Sac Spiders)
Genus Falconina
Species gracilis (Falconina gracilis)
Synonyms and other taxonomic changes
Explanation of Names
Author of the name: Keyserling. Year first published: 1891, as Hypsinotus gracilis.(1)
Body length of adult males range from 4.6—6.4mm, and females from 5.9—8.9mm.(2)

Native to Brazil, Paraguay, & northern Argentina, but introduced to the Gulf States (TX, LA, MS, AL, GA, FL, SC) and more recently to California.(2)(3)(4)
"This South American species has been introduced to the Gulf States and seems to be associated with the imported fire ant, Solenopsis invicta in Texas (J Cokendolpher, pers. comm.)"(4)
See Also
Species of Scotinella can have a similar pattern on the abdomen.
Works Cited
1.The World Spider Catalog by Norman I. Platnick
2.Taxonomia da subfamília Corinninae (Araneae, Corinnidae) nas regiões Neotropical e Neártica
Alexandre Bragio Bonaldo. 2000. Iheringia Série Zoologia, Porto Alegre 89: 3-148.
3.A South American spider, Falconina gracilis (Keyserling 1891) (Araneae: Corinnidae), newly established in southern California
Stephen Valle, Cynthia Bingham Keiser, Leonard Vincent, & Richard Vetter. 2013. The Pan-Pacific Entomologist 89(4): 259-263.
4.Spiders of North America: An Identification Manual
D. Ubick, P. Paquin, P.E. Cushing and V. Roth (eds). 2005. American Arachnological Society.