1. Important Announcement - Upcoming Downtime - Software Upgrade

    Please see here for more details.
Hello there, why not take a few seconds to register on our forums and become part of the community? Just click here.

Latrodectus (Theridiidae) Picture Thread

Discussion in 'Other Spiders & Arachnids' started by Kugellager, Jan 19, 2003.

  1. Atx512

    Atx512 Arachnopeon

    Thanks for the comment and wish we had some red backs like you have. I dont mind the hr. glass on ours here but seeing all the different kinds out there makes me a lil jelly at times you know. As far as the momma goes she passed yesterday morning IDK what causeed her to pass so now ill have to go hunt for another, but the babies are coming up nicely there were a couple of molts so just gotta start separating them soon I guess.
  2. Greasylake

    Greasylake Arachnoprince

    Someone I know runs a pest control business and found this female in a bait trap with some egg sacks. I'm not sure what he did with the sacks but he said if I didn't want this girl he would just kill her so I just figured I'd take her in. I was hoping I could also get an ID on her, I'm thinking mactans. She was also caught in Houston, Texas.
    • Like Like x 2
  3. Ungoliant

    Ungoliant Malleus Aranearum Staff Member

    L. mactans and L. hesperus both occur in Texas, and I'm not sure it's possible to distinguish between the two from this image.
  4. Greasylake

    Greasylake Arachnoprince

    I'll try to get a better picture later but she attached her web to the top of the container and wedged herself in a corner. I'm hoping she'll move a bit so I can take off the lid soon and get some clear pictures.
  5. Greasylake

    Greasylake Arachnoprince

    Hopefully these pictures will be a little clearer. Shes been webbing and moving around a lot more. What do you guys feed your latrodectus? I think that my roaches are too large for her and going outside and catching mosquitoes to drop in the container wouldn't get her the most nutrition, and I would probably need multiple as they're about 80% wing. 20180327_202000.jpg 20180327_201944.jpg 20180327_201938.jpg
    • Like Like x 1
  6. Ungoliant

    Ungoliant Malleus Aranearum Staff Member

    I still wouldn't be comfortable trying to distinguish between Latrodectus mactans and Latrodectus hesperus from these images. However, it really doesn't matter as far as care is concerned (just breeding).

    You might be able to get a more specific ID on BugGuide, but sometimes they just categorize them as Latrodectus where the range overlaps.

    I have not kept these for longer than a few days (as a child). However, I don't think they are picky eaters. Try to offer prey that is the size of the abdomen or smaller, ideally things that are not wild-caught (as they may be exposed to pesticides or carry parasites).
  7. Joogvanhedel

    Joogvanhedel Arachnoknight

    Or you prekill a prey (cricket or roach) and trow it in her web, she will eat it...
  8. checkmate

    checkmate 1. e4 e5 Arachnosupporter

    • Like Like x 3
    • Love Love x 1
  9. Android raptor

    Android raptor Arachnopeon

    I've been feeding mine mealworms and crickets, she seems to like those fine.
    • Like Like x 1
  10. Veigar

    Veigar Arachnopeon Active Member

    [​IMG] No idea what species this is, but she was an adult when this photo was taken:

    Attached Files:

  11. Greasylake

    Greasylake Arachnoprince

    Looks like a Latrodectus mactans mexicanus to me.
    • Agree Agree x 1
  12. dangerforceidle

    dangerforceidle Arachnodemon Active Member

    If you captured it locally (in Las Vegas), almost certainly L. hesperus.
    • Agree Agree x 1
  13. Veigar

    Veigar Arachnopeon Active Member

    Is Hesperus the only subspecies that can appear here? And yes, I caught it on my balcony when it was a ling.
    • Like Like x 2
  14. dangerforceidle

    dangerforceidle Arachnodemon Active Member

    Las Vegas is outside the range for L. mactans and is not included in the known established range for L. geometricus, so I would be pretty highly confident in it being L. hesperus. As far as I know, they are the only established local species.
  15. Veigar

    Veigar Arachnopeon Active Member

    Is L. Hesperus the only species that can survive out here? Or is it simply due to there not being any spiders introduced here? Say for example I put an egg sac of each Latrodectus and have them all hatch in different places along Vegas - would they all die out to the Hesperus' or would some be able to survive?

    Also, I'll tell you, there have been some very funky looking Hesperus' out here. Kind of makes you wonder what/how they get different patterns despite being the exact same species and sub species.
  16. dangerforceidle

    dangerforceidle Arachnodemon Active Member

    I think it's just a limitation of range due to how well a species is able to disperse from where they hatch. I have no doubt that any Latrodectus species would thrive in Las Vegas, but they may be out-competed by the already established populations if they were introduced in a limited manner. In the wild, spider sacs do not yield many adult individuals -- most die before they reach breeding age.
  17. Veigar

    Veigar Arachnopeon Active Member

    Here's two juveniles I have, both are Hesperus (at least I'm 99% sure)

    #1 - With her food. This specific one looks quite normal.
    #2 - Recently acquired this one. Her legs look exactly like a Brown Widow's but I'm still fairly positive she's a Hesperus. Kind of strange how they look so different. They're both the exact same size as well.

    Dunno why pics are sideways, just open them in a new tab.
  18. dangerforceidle

    dangerforceidle Arachnodemon Active Member

    The second one is sub-adult. She may be mature and full grown in size, but she should get her black appearance in a moult or two.
  19. Veigar

    Veigar Arachnopeon Active Member

    It still looks really funky. Also, I've had weird looking adults.

  20. RebelWolf

    RebelWolf Arachnosquire

    Beautiful, just beautiful. L. Hesperus are a favorite and they make good pets. I love pic number one the most
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.