Adult Giant Mesquite Bugs are brownish black with orange to red bands on legs and wings. The wingless nymph is mainly red with whitish markings. Nymphs are often found in clusters (aggregations) when feeding. The adults grow up to 2 inches in length.
Brown eggs are laid by the female on stems of the mesquite tree often in rows. These eggs overwinter and hatch in the spring. The young will grow to the adult stage changing in coloration and into a winged adult form. Mating occurs and lain prior to adults dying by end of the summer.
They do not bite and are quite harmless.
Emerge from soil nests.