Consumption of the variegated grasshopper in Africa: importance and threats

Zonocerus variegatus(Orthoptera: Pyrgomorphidae) is a crop pest widely distributed in Africa. It is an insecttraditionally consumed by humans in Africa. It is therefore important to make an inventory on the consumption ofZ. variegatusin order to identify its strengths and weaknesses. This literature review shows thatZ. variegatusis collected in field crops and fallows and is best consumed after being fried in red oil with salt and pepper.Z. variegatusconsumption brings to the human body several organic and inorganic substances such as fats, proteins, minerals and vitamins. However, a cross-section of the African population do not consumeZ. variegatusbecause consumption of this grasshopper is not part of their customs and/or because of rotten-odours rejected by this insect. When disturbed, it secretes a pungent smelly substance that can justify the rejection expressed against this insect bypredators. The rejection of this insect by predators raised the issue of its toxicity. The toxicity ofZ. variegatuswould be linked to the presence of alkaloids in the body of this grasshopper. Before the widespread consumption of this insect in our societies, it is important to continue research on: (1) the role ofZ. variegatusas a vector (transmissionof diseases); and (2) its ability to poison animals and humans. The outcome of these researches, might enlightenus on the role this insect could play in the mismatch that exists today between rapid population growth in Africa and the availability of foods.