Oidium
sp.
KW [Darwin] 16183. Place of collection: Ukraine; Khmelnitskyi oblast; Kamianets-Podilskyi district; Ustya village (N48°34' E26°39'). Date of collection: 5 August 1948. Associated organism: Cucurbita pepo (leaf). Collector: Isayeva, O.V.. Identifier: Isaeva, O.V..