Stigmatomyces chamaemyiae
Stigmatomyces chamaemyiae W. Rossi & M. Leonardi, in Hyde et al., Fungal Diversity 96: 114 (2019)
Index Fungorum number: IF828160; Facesoffungi number: FoF05175
Receptacle, distal portion of the free appendage and perithecial apex almost hyaline; stalk and basal cell of the free appendage and perithecial venter rusty or amber yellow; the rest of the fungus is very diluted reddish or amber yellow. Receptacle very variable in length, slightly tapering to the foot, with the suprabasal cell longer than the basal. Stalk cell of the appendage relatively small, distally prominent, strongly tapered below, its outer margin almost straight. Free appendage usually turned sidewise, with the axis consisting of five cells (rarely four), each bearing two anteridia, the uppermost of which is spinose. Stalk cell of the perithecium distinctly broader than long, separated by the secondary stalk-cell by a concave septum; the cells above it subequal in size and shape, the two outer of which are more or less prominent. Perithecial venter finely granular, oblong, slightly and symmetrically inflated, passing without abrupt transition to the spreading base of the paler and longer neck, which is slightly curved dorsally and slightly swollen at its junction with the tip; the latter is asymmetrical, with the ventral side more convex; the apex short, rather abruptly narrower, distinctly turned towards the dorsal side, ending in four, small, paired, subtruncate lips. Total length 205–440 µm; perithecium 45–75 × 130–220 µm; free appendage 50–65 µm; ascospores 30–35 µm. (Adopted from Hyde et al. 2019)
Known hosts and distribution: on legs and apex abdomen of Chamaemyia flavicornis (Strobl) (Diptera, Chamaemyidae) (Malta); on legs of C. juncorum (Falle´n) (France); on various parts of C. flavipalpis (Haliday) Portugal; on various parts of C. polystigma (Meigen) (Sintra). . (Adopted from Hyde et al. 2019)
Stigmatomyces chamaemyiae (Material examined – Sintra, Almargem do Bispo, 21 August 2013, R. Andrade, on various parts of C. polystigma (Meigen) (FI WR3847, holotype)). Scale bar = 50 µm. (Adopted from Hyde et al. 2019)