On september 9th this year Paul Parson's and myself went to dunraven in ogmore for a morning stroll when i came across this dead fly (which looks like a phaonia tuguriorum) on a tree leaf. After recently reading about fungi it dawned on me that the fly that we found probably died from this type of fungi which is called entomophthora muscae. This is a pathogenic fungus which causes fatal diseases in many species of flies. Outbreaks of this fungi tend to occur in spring and autumn. Once infected the flies die in 5 - 7 days, when it is critically ill it tends to crawl to a high point and straighten their hind legs and open their wings. This behaviour ensures that the fungal spores are spread as widely as possible. Some three hours later conidiophores start to develop and a new shower of conidia is initiated.