Chocolate lowland climate in the narrow band of latitudes where cacao is grown (20 degrees north and south of the equator), the commercial company Mars, Incorporated and the University of California, Berkeley are conducting genomic research in 2017–18 to improve the survivability of cacao plants in hot climates. Chocolate is made from cocoa beans, the dried and fermented seeds of the cacao tree ("Theobroma cacao"), a small, 4–8 m tall (15–26 ft tall) evergreen tree native to the deep tropical region of the Americas. Recent genetic studies suggest the most common genotype of the plant originated in the Amazon basin and
Forcipomyia squamipennis Forcipomyia squamipennis Forcipomyia squamipennis is a biting midge species in the genus "Forcipomyia". It is an important pollinator of cacao trees ("Theobroma cacao") in Ghana, and other related midges pollinate the tree in other parts of the tropics. "Forcipomyia squamipennis" is an important pollinator of the cacao tree "Theobroma cacao" in Ghana, not because it pollinates more effectively than other insects but because it is so numerous in cacao plantations. The population is greatest in the rainy season. Adult midges spend the day in shady spots such as between the buttress roots of large trees, in crevices in logs, in