[1] The flight season of A. texanus ranges from March to October with their peak activity happening in May to September.

[4] The head and thorax of both male and female Agapostemon texanus are variations of a bright metallic blue or green.

[5] Agapostemon texanus is a ground nesting species that builds on both vertical banks and horizontal surfaces.

Females fly close to the ground in search of ideal nesting sites and are specifically attracted to dark, hidden spots.

[4] They prefer to build in loamy soil, under pebbles and leaves or in pre-existing cracks or holes in the ground to stay hidden.

The A. texanus nest consists of a nearly vertical tunnel with 6-14 lateral branches, each of which end in a single cell and are dug with no particular sequence.

Burrows show a downwards trend in their construction, likely due to periodic deepening of the nest.

[4] Based on current research there do not appear to be any specific predators or parasites of A. texanus.