This research activity aims to characterize the Invreiella species, focusing on their morphological and taxonomic features. The study will involve the analysis of various species within the Invreiella genus, including Invreiella cardinalis, Invreiella chihuahuensis, Invreiella mesomexicana, Invreiella acuminata, Invreiella satrapa, and Invreiella breviclypeata. The research will provide valuable insights into the diversity and distribution of these species, contributing to a better understanding of the Invreiella genus and its place within the broader context of Hymenoptera.