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[Display omitted] • Two new species from the fungal genus Strongwellsea (Entomophthorales) are described. • Strongwellsea selandia infects adult Helina evecta (Diptera). • Strongwellsea gefion infects adult Helina reversio (Diptera). • The two new species differ from other described species from the genus. • Differences include morphology of spores, genetic identity, and host species. Two new species from the genus Strongwellsea (Entomophthorales: Entomophthoraceae) that infect adult flies from the genus Helina (Muscidae) are described: Strongwellsea selandia Eilenberg & Humber infecting adult Helina evecta (Harris), and Strongwellsea gefion Eilenberg & Humber infecting adult Helina reversio (Harris). The descriptions are based on pathobiological, phenotypical and genotypical characters. The new species differ from other described members from the genus Strongwellsea by a) pathobiology as revealed by natural host species, b) morphology of primary conidia, c) color of resting spores, and d) genotypical clustering based on analysis of ITS2. The two new species have only been documented from North Zealand, Denmark. [ABSTRACT FROM AUTHOR]

Strongwellsea crypta Eilenberg & Humber. [Display omitted] • Strongwellsea crypta is a new species infecting its dipteran host adult Botanophila fugax. • The description includes symptoms on the infected host, and morphology of spores. A new species from the genus Strongwellsea (Entomophthorales: Entomophthoraceae) is described: Strongwellsea crypta Eilenberg & Humber from adult Botanophila fugax (Meigen) (Diptera: Anthomyiidae). The description is based on pathobiological, phenotypical and genotypical characters. The abdominal holes in infected hosts develop rapidly and become strikingly large and edgy, almost rhomboid in shape. The new species S. crypta differs from S. castrans, the only described species infecting flies from Anthomyiidae, by: (a) naturally infecting another host species, (b) by having significantly longer primary conidia, and (c) by genotypical clustering separately from that species when sequencing ITS2. [ABSTRACT FROM AUTHOR]