The head and thorax are clad in short, dense whitish hair.

[2] The nests of Megachile texana often occur in pasture, with the entrance being under a rock, under a clod of earth or in one case, on a small hillock.

The burrows may be up to 25 cm (10 in) long and the upper side is often the underside of a flat stone.

Each cell is half-filled with a mixture of pollen and nectar and an egg laid on the food mass.

The larva consumes its food supply and when sufficiently developed becomes an inactive prepupa enclosed in a cocoon which fills the cell.