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Latrodectus
(Widow Spiders)

Picture ID 56058

Picture of Latrodectus (Widow Spiders) - Dorsal
  • Submitted by: 
    heinly21
  • Submitted: Apr 6, 2019
  • Photographed: Apr 6, 2019
  • Spider: Latrodectus (Widow Spiders)
  • Location: Cochabamba , Bolivia
  • Spotted Outdoors: Man-made structure (building wall, fences, etc.)
  • Found in web?: No
  • Attributes: Dorsal
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ItsyBitsy

Hi, tentative to species but this looks like a South American Widow Spider, Latrodectus curacaviensis. I need to make a page for this to file it properly when I have more time.

ItsyBitsy

You’re welcome. Range-wise curacaviensis is a likely candidate, after looking over diagrams in “Abalos, 1980” this morning though I’m going to refrain from placing to species because the closest match I see to the abdominal pattern in there is L. quartus (fig. 40). The paper shows an isolated range for that species in Argentina so I initially overlooked it but I don’t want take a chance and misfile it. They can be tricky when the abdominal patterns have so much variation within just one species and there aren’t a lot of reliably IDed images for me to compare to.

Additional Pictures

Picture of Latrodectus spp. (Widow Spiders) Enlarge Picture
Picture of Latrodectus spp. (Widow Spiders) Enlarge Picture
Picture of Latrodectus spp. (Widow Spiders) Enlarge Picture
Picture of Latrodectus spp. (Widow Spiders) Enlarge Picture