Stachylina nana Lichtw., 1984.

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

Stachylina nana Lichtw., 1984. Fig. 19

Specimens examined.

Site 11: slide BUL-11-4.

Notes.

Stachylina nana was found in the mid-gut of Chironomidae ( Chironomus sp.) in the same host as Smittium dipterorum . Specimens of S. nana in Bulgaria had a small thallus, 60-70 × 7-8 µm, with 1-4(-5) generative cells. Trichospores measure 20-24 × 7-7.5 µm, without a collar. All measurements agree with the original description of the species ( Lichtwardt 1984). This species was recorded before from Europe, including France ( Lichtwardt 1984) and Spain ( Santamaria and Girbal 1997); Asia, in Thailand ( Hapsari et al. 2009), China (Strongman and Wang 2015) and also America, including Canada ( Strongman 2007, 2010; Strongman and White 2008) and USA (Beach and White 2012). Probably, S. nana has a cosmopolitan distribution, although we only have patchy data from few surveyed countries.

Figures

Figures 17 - 20. Various species of Harpellales. 17 Smittium dipterorum from Chironomidae larvae; thallus overview with fertile branches and trichospores 18 Spartiella barbata from Baetidae nymphs, fertile branches with trichospores 19 Stachylina nana from Chironomidae larvae, thallus overview with trichospores 20 Stipella vigilans from Simuliidae larvae, thallus with mucilaginous material at the basal cell (arrow). Scale bars: 25 μm in all figures.