Abstract
Events associated with the original discovery of Botrytis acridiorum Trabut (= Fusarium acridiorum (Trabut) Brongniart & Delacroix) in 1891 are reviewed, together with the biological features and taxonomic treatment of the fungus. This same organism has recently been found as a superficial parasite of red locusts ( Nomadacris septemfasciata ) in the laboratory. Its morphology, development and physical relationship with its host are described. It is proposed that the species be transferred to the genus Trichothecium Link ex Fries. Its similarity to Didymopsis locustanae Prinsloo is noted. The possibility that the presence of the fungus is secondary to physical injury is discussed. It is able to grow and sporulate on lipids from the locust's epicuticle, and viable spores have been found in the film of wax which becomes deposited on the inside of rearing cages from the bodies of captive locusts. The parasite appears to have little potentiality as an agent for artificial biological control.
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