Female nymphs of opuntia cochineal scale, Dactylopius opuntiae, aggregating at the top of a green nopal cactus where they become dispersed by the wind.
Female nymphs of opuntia cochineal scale, Dactylopius opuntiae, aggregating at the top of a green nopal cactus where they become dispersed by the wind. Credit: Juan M. Vanegas-Rico, Arthropoda Mexicana
