title: Revision of the Orasema festiva species group (Hymenoptera: Chalcidoidea: Eucharitidae).
abstract: The Neotropical Orasema festiva species group is revised, retaining O. festiva (Fabricius) and O. delicatula (Walker) as valid species, and describing four new species: O. alvarengai n. sp., O. caesariata n. sp., O. erwini n. sp., and O. reburra n. sp. The festiva-group is characterized by features that are unusual or unique in Orasema, including the presence of 8-11 labral digits, a smooth face, and a lateral petiolar carina. The egg of O. caesariata and the first-instar larva of O. delicatula are newly described and found to be similar to other species of Orasema.
authors.affiliation: Department of Entomology, University of California, Riverside, CA 92521; Email: unknown.
authors.forename: Roger A
authors.initials: RA
authors.lastname: Burks
authors.affiliation: Department of Entomology, University of California, Riverside, CA 92521; Email: unknown.
authors.forename: Jason
authors.initials: J
authors.lastname: Mottern
authors.affiliation: Department of Entomology, University of California, Riverside, CA 92521; Email: john.heraty@ucr.edu.
authors.forename: John M
authors.initials: JM
authors.lastname: Heraty
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D005260:Female; D007814:Larva / Q000033:anatomy & histology / Q000145:classification / Q000254:growth & development; D008297:Male; D009929:Organ Size; D014863:Wasps / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development