Anthidium collectum Huard, 1896
Nests consist of one to four cells built inside hollow stems or in the ground, including abandoned nests of other bees, which are plugged with packs of trichomes and pebbles (Hicks, 1929c; Ferguson, 1962). According to Hicks (1929c), cells are made with trichomes of Artemisia tridentata (Asteraceae).