Type: Petchia siamensis Thanakitp., Mongkols. & Luangsa-ard. Etymology: In honour of Tom Petch (1870–1948), renowned English mycologist and plant pathologist best remembered for his work on entomopathogenic fungi. Description: Stromata arising from the egg cases of praying mantis (Mantidae), multiple, mostly erect up to 2 cm high. Fertile part is at the terminal end of the stroma, pale cream, globose, 1.5–1.8 cm diam. Perithecia narrowly ovoid, brown, immersed, with packed mycelium surrounding each perithecium. Asci cylindrical, 8-spored. Ascus cap rounded. Ascospores hyaline, filiform, multi-septate, whole. On PDA cultures hyphae branched, smooth, hyaline, sometimes fasciculate. Conidiogenous structures phialidic, conidiophores elongate, erect, non-septate, verticillately or irregularly branched, bearing phialides singly, or in whorls of one to five. Conidia ellipsoidal or reniform. Host: Egg cases (Ootheca) of praying mantis (Mantidae).

Reference: Thanakitpipattana D, Tasanathai K, Mongkolsamrit S, et al. (2020). Fungal pathogens occurring on Orthopterida in Thailand. Persoonia - Molecular Phylogeny and Evolution of Fungi 44: 140–160. https://doi.org/10.3767/persoonia.2020.44.06