Small Lasioglossum (Dialictus) Sweat Bee - Lasioglossum -
National Butterfly Center in Mission, Hidalgo County, Texas, USA November 26, 2018 Size: 4-5 mm
This is a small greenish-brown metallic sweat bee, found feeding on spiked malvastrum (Malvastrum americanum var. americanum) -- in an arid habitat, near the Mexican border.