Drama in the portable toilet

Several us went out to Yolo Bypass Wildlife Area on Saturday to look for birds. We did see some fabulous birds, but the highlight of the trip for me was seeing a Black Widow spider capturing a wasp of some kind, and wrap it in spider silk, and slowly kill it. This all took place inside one of the portable toilets, just below the urinal. Had anybody seen several of us standing around and looking in the door of a portable toilet for five or ten minutes, I suppose they would have thought us odd. But it was a riveting drama, well worth watching.

Emily, who was with us, has posted a series of photos showing the whole process; my favorite of this series of photos is here.

I spent a little time trying to track down what kind of wasp the Black Widow was preying on. The best I could do was to say with certainty that this insect was in the order Hymenoptera; with somewhat less certainty, I’m willing to say the insect was in family Vespidae. But is it a paper wasp, a hornet, or a yellowjacket? I have neither the patience nor the expertise to answer that question.

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