Soil-dwelling-host
Guides
Myzinum dubiosum
Myzinum dubiosum is a species of thynnid wasp in North America. Like other members of the genus, it exhibits pronounced sexual dimorphism: males are slender with long, straight antennae and a prominent curled pseudostinger (part of the external genitalia), while females are larger-bodied with robust abdoments, stouter legs adapted for digging, and short, coiled antennae. The species is a parasitoid of scarab beetle grubs, particularly Phyllophaga species. Adults are active in late summer and autumn, frequently visiting flowers such as goldenrod and thoroughwort.