1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Color morphs in Phidippus regius

Discussion in 'True Spiders & Other Arachnids' started by Gogyeng, Aug 2, 2019.

  1. Gogyeng

    Gogyeng Arachnobaron Active Member

    Back in time there were three established morphs in Florida alone, with substantial color and size variations,

    Quoting @xenesthis, at the end of an old thread in 2009:

    'P. regius has three distinct color morphs. The black morph is in North FL. The gray morph is in central FL and the orange morph is in south FL. In central FL, all three can be found, but the gray morph represented the most.'

    However Phidippus regius has a wide distribution and can be found beyong North America, well across the Caribean and most of West Indies, including Cuba, with very colorful morphs there indeed. For instance the "Soroa" variant, has a vivid orange and black abdomen in females. Do you know any other morphs?

    'Soroa' morph Pics from phidippus.eu :
  2. Turtle

    Turtle Arachnosquire Active Member

    How do you tell the difference between P. audax and P. regius black morphs?

    *Now I see, regius has coloration under the primary set of eyes and audax has significantly less hair on the carapace.
    Last edited: Aug 2, 2019
  3. Carnivoran

    Carnivoran Arachnopeon

    It is both interesting, and unfortunate, to see the lack of genetic analyses on Phidippus. All data seems relatively old and based on morphometric studies (although there is nothing inherently wrong with these works). I have a background in mammalian studies, so it does seem rather stark in comparison. If only people knew the complexity of jumping spider behavior!

    I will be watching this thread, as I wonder if we are dealing with subspecies, cryptic species and/or large superspecies, but perhaps more fine-tuned than the Phidippus otiosus group designation. It would be great for some genetic studies on one of the Phidippus groups to determine the genetic distance between members of these "groups" based on morphometrics.
    • Love Love x 1
  4. BenLeeKing

    BenLeeKing Arachnosquire Active Member

    Here’s a weird case~ Phidippus octopuctatis is not normally found in Washington, but there were sitings of a mysterious “WA P. octopuctatus”
    • Like Like x 1
  5. ArachnidBoi

    ArachnidBoi Arachnopeon

    Phidippus is a headache of a genus. Even after the revision, it needs work.
    • Agree Agree x 1
  6. Carnivoran

    Carnivoran Arachnopeon

    Not sure if this is significant but the majority of the time, the iridescence of my male is blue. If I recall, most of P. regius males display an iridescent green, with blue hints. I also tried a UV light to see if there was additional patterning augmented or made .
  7. Gogyeng

    Gogyeng Arachnobaron Active Member

    A 1987 phylogenetic study puts P.regius and P. Otiosus the closest, well within an 'Audax super-group'. Some genetic markers were used and confirmed some morphometry cladistics by Edwards in the 80s. But they did not go in detail within each species, and elucidate how much variaty/ homogeneity was within each.

    • Informative Informative x 1
  8. BenLeeKing

    BenLeeKing Arachnosquire Active Member

    P. regius & otiosus can create viable hybrids too~ So it's not too surprising.
  9. Gogyeng

    Gogyeng Arachnobaron Active Member

    Found a more recent revision on Phidippus genus, with distribution maps included. By Edwards, 2004

    P. regius and otiosus share roughly the same areas in Florida, but NOT in Caribean Bahamas and Cuba.
    In fact the Cuban / Bahamas phidippus does not normally yield fertile eggsacks with the mainland (References breeders here in UK). So one wonders if in fact the caribean morphs represent in fact different subspecies, rather than simply locality.

    The next closest to P.regius is P.diantus according to cladistics, end of the paper
    • Informative Informative x 1
    • Award Award x 1
  10. Turtle

    Turtle Arachnosquire Active Member

    oh wow! great thread btw, lots of intersting info
  11. Gogyeng

    Gogyeng Arachnobaron Active Member

    Salticid phylogenetics with relation to demographics dates a common ancestor between american, european and asian radiations to 47-57 my. Young?

    The biogeography and age of salticid spider radiations (Araneae: Salticidae).

    Bodner MR(1), Maddison WP. 2012
  12. Gogyeng

    Gogyeng Arachnobaron Active Member

    The salticid genus Sassacus (Dendryphantinae) is the closest to Phidippus, according to very recent phylogenetic revision, extending from Panama to Canada, with a high representation in Mexico, Brazil and US (S. cyaneus, S. papenhoei). Maybe giving clues about the origins of this branch of salticids.
    Another link.

    Madison, 2017. Zookeys

  13. Aline

    Aline Arachnopeon

    Could you tell me where you got this info? What coloration under the eyes are you talking about?

    Great thread, I would love to see more studies on morphs / subspecies / species of Phiddipus too...
  14. Turtle

    Turtle Arachnosquire Active Member

    That's a great question... what the heck was I talking about?! I was making poor observations and drawing even worse conclusions on a subject that I’m still learning about. Please ignore my ignorance and thank you for bringing it to my attention.
    Last edited: Aug 21, 2019
  15. Aline

    Aline Arachnopeon

    I wasn't actually pointing out the mistake, but trying to learn how to differentiate them :) So what you said is not true?
  16. Turtle

    Turtle Arachnosquire Active Member

    Not true at all. I was confusing myself and you as well apparently, sorry about that. I still can't tell the difference :hilarious:. Now I have to wonder, are the pictures out there even correct?
    image search for a P. audax (black morph)
    image search of P. regius (black morph)
    I can't tell the difference at all

    *I've never actually seen a black morph P. regius with my own eyes, so there's that variable to.
    • Like Like x 1