Last month, I thought I’d found a color morph in S. triangulosa: some recently caught wild spiders from Wisconsin that were almost solid black, with just a hint of the standard pattern. I figured I’d be able to do some crosses this summer and see if it was heritable.
Now I don’t need to! Look at the difference a month in the lab environment makes.
[I try not to splash spiders in your face here. You’ll have to look it up on Instagram or Patreon.]
That’s the same spider, almost a month apart. Now it looks all the other spiders I’ve got. I suspect it’s got to be something about the change in diet, from whatever they were finding in a garage to a steady diet of fruit flies and mealworms.
They were caught in Wisconsin, where they’d been living on cheese curds, brats, and La Croix, probably.
Also note that this spider has made a couple of egg sacs. The one in the top right is a half-assed mess, only a few eggs only partially wrapped in a thin skein of silk.