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Photo#75308
red ants with eggs - Neivamyrmex nigrescens

red ants with eggs - Neivamyrmex nigrescens
Dixon, Phelps County, Missouri, USA
September 4, 2006
Size: ~0.25in
If you click on the image, you can see the ants better--they were very long. Sorry for only having one shot. They weren't very happy about me moving their rock. I had planned to remove a lot of rocks from around my flower bed, but one half the garden had these under it and it appeared to be one "nest" that was connected. I'd hate to think how big this colony actually is!! My flower bed is about 10ft by 5ft, so that's one huge nest! I finally gave up.

Sorry it took so long!
This is a much more interesting find than A. tennessensis --
It's a temperate zone army ant; one of two that occur in Missouri. Very large colonies and very hard to get good pictures of because they are constantly and rapidly moving. What you encountered was the 'bivouac' in which the brood (in this case, pupae) was being incubated under rocks to speed its development.

Aphaenogaster
maybe tenneseensis

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