Conoideocrella krungchingensis sp. nov., an entomopathogenic fungus from Thailand

• A fungal pathogen of armored scale insects (Diaspididae) was isolated from Thailand.
• Molecular phylogenetic analyses revealed this fungus to be a new species.
• Conoideocrella krungchingensis (Clavicipitaceae) is the third species of its genus.

Conoideocrella krungchingensis, a fungal pathogen infecting armored scale insects (Diaspididae) on a dicotyledonous plant, is described and illustrated as a new species from Thailand. The new taxon morphologically resembled C. luteorostrata but could be distinguished from the latter using the sequences of the partial nuclear large subunit rRNA (LSU) and the elongation factor (EF-1α) genes. Apart from it, asci and ascospores of C. krungchingensis were found notably shorter than those of C. luteorostrata and C. tenuis. All three species of Conoideocrella have been reported from Thailand, including C. krungchingensis.