Male black widow spider (Latrodectus hesperus) molting

  • Macroscopic Solutions
  • Digital Images
  • Online

Available online

view Male black widow spider (Latrodectus hesperus) molting

Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

You can use this work for any purpose, as long as it is not primarily intended for or directed to commercial advantage or monetary compensation. You should also provide attribution to the original work, source and licence. Read more about this licence.


Male black widow spider (Latrodectus hesperus) molting. Macroscopic Solutions. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.

Selected images from this work

View 1 image

About this work


Photomacrograph of a juvenile male black widow spider (Latrodectus hesperus) molting. The black widow or western widow spider is a venomous spider commonly found across North America. Males are usually half the size of females and are light brown in colour (as opposed to the characteristic black colouring with red hourglass-shaped marking on females) with three diagonal stripes on each side of their abdomen. Only bites by the female spider cause harm to humans and contrary to popular belief, bites to humans are rarely fatal. Symptoms (nausea, profuse sweating, severe pain, muscle aches, hypertension and respiratory difficulties) usually subside within several days. An antivenom (antivenin) is available but can cause acute hypersensitivity reactions in some individuals. Width of image is 0.6 cm.

Permanent link