Location: Systematic Entomology LaboratoryTitle: A new species of Ormocerus Walker (Hymenoptera: Pteromalidae) from North America and a range expansion for Ormocerus latus Walker Author
Submitted to: Proceedings of the Entomological Society of Washington
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 8/14/2017
Publication Date: 10/15/2017
Citation: Morin, H., Gates, M.W., Miko, I. 2017. A new species of Ormocerus Walker (Hymenoptera: Pteromalidae) from North America and a range expansion for Ormocerus latus Walker. Proceedings of the Entomological Society of Washington. 119(4):619-628. Interpretive Summary: Gall wasps induce deformities on a variety of plants, often oaks and roses, which can lead to decreased plant vigor or economic losses due to unsalability (e.g. nursery stock). This paper both describes a new species of parasitic wasp known to attack gall wasps on oaks and reports on a significant range expansion for another known European species. This information will be useful to ecologists, foresters, entomologists, and the nursery trade.
Technical Abstract: Ormocerus dirigoius, n. sp. is described and compared to the North American O. americanus Dzhanokmen and Grissell and European species O. latus Walker and O. vernalis Walker. A range expansion into the Nearctic is reported for O. latus, previously only known from the Palearctic. Specimens were collected in Harpswell, Maine during a study of the parasitic Hymenoptera community associated with Operophtera brumata Linnaeus (Lepidoptera: Geometridae), an invasive species.