Taxonomically-challenging-group
Guides
Ophion nigrovarius
Ophion nigrovarius is a species of ichneumon wasp in the subfamily Ophioninae, described by Provancher in 1874. Like other members of the genus Ophion, this species is nocturnal and frequently attracted to lights. The Ophion genus has long presented taxonomic challenges due to morphological uniformity among species, with O. nigrovarius being one of many species that remained difficult to distinguish until the application of molecular and morphometric methods. It is part of a diverse North American fauna that has seen significant revision through modern systematic approaches.