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Genus Marpissa

Salticid - Marpissa lineata - male Unknown Jumping Spider - Marpissa pikei - female spider - Marpissa grata - male spider - Marpissa grata - male Marpissa lineata - male jumping spider - Marpissa lineata Pike Slender Jumper? - Marpissa pikei Marpissa robusta - 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 Marpissa
10 species in BugGuide's range (North America north of Mexico)(1).
(Not all species and genders are shown here.)

Marpissa bina (male, female, female variety):
(image not from BugGuide; click to see source)

Marpissa formosa (male, female):

Marpissa grata (male):

Marpissa lineata (male, female):

Marpissa pikei (male, female):

Marpissa robusta (male):
(Species that can be found in Canada are in bold.)

M. bina: southeastern states from Florida north to at least Beaufort, North Carolina.(2)
M. bryantae: known only from the type locality in Texas.(3)
M. dentoides: northeastern USA, inland to about Tennessee.(2)
M. formosa: eastern USA & southeastern Canada.(2)(4)
M. grata: known from Florida, Michigan, Minnesota, & Ontario.(2)(4)
M. lineata: eastern USA & southeastern Canada, but may be displaced by M. sulcosa in Florida and along the southern coast.(2)(4)
M. obtusa: known only from the type localities in Texas.[cite487565]
M. pikei: eastern USA & southeastern Canada.(2)(4)
M. robusta: known only from Arizona & California.(2)
M. sulcosa: apparently restricted to Florida and the coastal region of the southern Atlantic states (GA, SC, NC).(2)
M. bina & M. formosa are very similar-looking; they were once thought to be the same species, but Barnes 1958(2) separated them based on differences in genitalia.

M. bryantae & M. pikei look the same in body coloration and have only slight differences in their genitalia, so might just be variations of a single species, according to Logunov(3). It will not be known for sure until more M. bryantae are collected.

M. lineata & M. dentoides are similar in coloration(2).