Species Diversity and Virulence Potential of the Complex and Complex.

is a very important fungal resource. Some species have great economic and ecological value. Through surveying in China and Thailand over the past 4 years, 15 spp. were collected and identified. Three new species-namely, , , and -were described and illustrated based on morphological characteristics and molecular data. The phylogenetic positions of the 15 species were evaluated according to phylogenetic inferences based on six loci (nr, nr, , , , and ). Nine species of in our study were isolated from adult scarab beetles (Coleoptera: Scarabaeidae). The pathogenicity of the isolates from the complex and complex was determined with three bioassays using and larvae, in addition to adults. The results indicated that the complex isolates had great potential in the biocontrol of the three insects; by contrast, the complex isolates showed obvious host specificity and low virulence.