General situation of the desert locust from January to December 2020 (modified from FAO 2020a). Swarms or hopper bands: immature adults, red square; mature adults, blue triangle; maturity unknown, black triangle up; egg laying or eggs, black triangle down; hoppers, black circle; hoppers and adults, combined symbols. Groups of adults or hoppers: same symbols but hollowed out. Density unknown: same symbols, but partial.