The wasp wants the spider badly enough to take it on face to face. It patrols suitable habitat, and when a wolf spider is spotted, it tries to maneuver itself into a position where it can successfully sting the spider, filling it with a powerful toxin. A bit tricky, this business, because the big bad spider does not want to get stung by a large wasp and filled with a powerful toxin.
In this case, all worked out well for the wasp, and not so well for the spider.The spider is now subdued - alive, possibly aware of what's going on, but almost totally paralyzed. Every now and then a leg would twitch in an involuntary spasm, but otherwise it was putty in the wasp's hands, so to speak.
So when we came along, the wasp was methodically dragging the spider over the ground. Where? It will have previously excavated a burial chamber in the soil, and that's where it's headed with the victim. Upon reaching the burrow, it will pull the spider in, lay one egg on its body, and seal it in. When the young wasp hatches, it will begin consuming the soft edible parts of the spider. The neurotoxin injected by the adult wasp keeps the food alive, so Junior has fresh meat to snack on upon emergence. After feeding and growing, the wasp will pupate in the burrow, and emerge as an adult next summer, starting the whole savage cycle over.
I warned you.
Thanks to Janet Creamer for spotting this drama and bringing my attention to these beasts.
2 comments:
'When the young "spider" hatches, it will begin consuming the soft edible parts of the spider. The neurotoxin injected by the adult wasp keeps the food alive, so Junior has fresh meat to snack on upon emergence. After feeding and growing, the "spider" will pupate in the burrow, and emerge as an adult '
Should this be "wasp" instead of spider?? I might have the story-line wrong, but it seems that the wasp would produce a wasp ;)
Yes indeed, Robb - I mixed that one up in a dyslexic fit. It's corrected. In my defense, I often post these blogs at Panera at lunch, where a rigid 30 minute limit of free wireless Internet access is imposed. That sometimes leads to rushing and mistakes - my bad!
Jim
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