Paramoebidium chattoni Leger & Duboscq ex LG Valle, 2014b

Valle, Laia Guardia & Stoianova, Desislava, 2020, First record of Harpellales, Orphellales (Kickxellomycotina) and Amoebidiales (Mesomycetozoea) from Bulgaria, including a new species of Glotzia, MycoKeys 67, pp. 55-80 : 55

Paramoebidium chattoni Leger & Duboscq ex LG Valle, 2014b Fig. 27

Specimens examined.

Site 2: slide BUL-2-6.

Notes.

This species of Paramoebidium is common within Simuliidae hosts and is identifiable by having the widest diameter of thallus at the basal to middle sections, slightly tapering towards the distal end. It has a non-cellular holdfast located at the proximal end smaller in diameter (12-27 µm) than the thallus, cylindrical or slightly campanulate ( Valle 2014b). Bulgarian species perfectly match with the original description ( Léger and Duboscq 1948) and with that provided in the validation of the species by Valle (2014b). The species was recently reported from Colombia ( Barón and Valle 2018). In our collections, Simuliomyces microsporus was often found attached to the thalli of this Paramoebidium (Fig. 27 ).

Figures

Figures 26 - 30. Various species of Amoebidiales. 26 Paramoebidium angulatum from Nemouridae nymphs, thalli overview with typical angular shape at the upper section 27 Paramoebidium chattoni from Simuliidae larva, overview, with thin filaments of Simuliomyces microsporus 28 Paramoebidium curvum from Simuliidae larva, overview 29 Paramoebidium hamatum from Baetidae nymphs, overview of various thalli in different growth phases 30 Paramoebidium inflexum from Nemouridae nymphs, thallus overview. Scale bars: 50 μm (26, 29, 30), 100 μm (27), 25 μm (28).