1. Location of collection: Dracut, Massachusetts
2. Date of collection: June 11, 2017 in the afternoon.
3. Habitat of collection: Backyard, caught wandering in grass next to a small forest.
4. Length (from head to gaster): ~10 mm
5. Color, hue, pattern and texture: Black all over, but there's a silver sheen on gaster.
6. Distinguishing characteristics: Humongous eyes.
7. Distinguishing behavior: She died roughly 24 hours after I collected her, but she was in an empty test tube so that might be why.
8. Nest description: No nest found.
I think this is Formica however the time of year wasn't right- maybe she got ejected from a polygynous colony?