Hyperparasitic fungi on insect hosts. a. Nycteromyces streblidinus on the legs of a Trichobius joblingi bat fly (left) collected from a Carollia perspicillata bat, and a female thallus of the Laboulbeniales microfungus at higher magnification (right). b. Polycephalomyces cf. yunnanensis (Hypocreales: Ophiocordycipitaceae) parasitizing Ophiocordyceps nutans (Ophiocordycipitaceae), a pathogen of stink bugs (Hemiptera: Pentatomidae). In the background, a bright pink uninfected ascoma of O. nutans is shown for contrast.