Porter, Charles C.

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Hochschulschriftenserver - Universität Frankfurt am Main

184 Volume 17, No. 3-4, September-December, 2003, INSECTA MUNDIMelanichneumon dreisbachi was described byHeinrich (1962) on the basis of material from Maineand Michigan. No further records of this species havebeen published, even though Heinrich subsequently(1977) provided an exhaustive treatment of the Flor-ida Ichneumoninae, but more recent collecting in theGainesville area of north-central Florida has turnedup 2 additional specimens.Material Examined. 1 female, FLORIDA, AlachuaCo., Gainesville, 610 NW 64th Terrace, Malaise Trap,16-IV-1997, L. A. Stange; 1 male, Gainesville, Univer-sity of Florida Natural Area Teaching Laboratorynear Doyle Conner Building, by hand net, 21-III-1990,C. Porter [Florida State Collection of Arthropods].Habitat. In hardwood hammocks or mixed hardwoodand pine.Phaenology. Early spring in Florida, early summerin Maine and Michigan (25-V1 to 22-VII).Biogeography. Melanichneumon dreisbachi proba-bly occurs throughout the eastern United States andsouthern Canada. Heinrich (1962) remarks that it isvery similar to the Palaearctic M. spectabilis(Holmgren) Indeed, Melanichneumon in the strictsense is primarily Holarctic with a few species in theOriental region and the northern Neotropics.Identification. A large species (body length 15-18mm); gaster mostly black, marked with white latero-apically on tergites 1-2. Melanichneumon has femaleflagellum widened and ventrally flattened beyondmiddle, a tiny but well defined median tubercle onbase of propodeum, areola more or less horseshoe-shaped, and postpetiole with numerous punctures butno longitudinal striae.Acknowledgments. Drs. Lionel P. Stange andMichael C. Thomas helped with museum and field-work.Literature CitedHeinrich, G.H. 1962. Synopsis of Nearctic Ichneu-monidae Stenopneusticae with particular refer-ence to the Northeastern Region. Pt. VI. Synopsisof the Ichneumonini (Genus Plagiotrypes), Acan-thojoppini, Listrodromini and Platylabini. Cana-dian Entomologist, Supplement 27: 679-802.Heinrich, G.H. 1977. Ichneumoninae of Florida andNeighboring States (Hymenoptera: Ichneu-monidae, subfamily Ichneumoninae). Arthropodsof Florida and Neighboring Land Areas, 9: 1-350.￿ Charles C. Porter, Florida State Collection ofArthropods, Florida Department of Agricul-ture and Consumer Services, P.O. Box 147100,Gainesville, FL 32614-7100First records of Melanichneumon dreisbachi Heinrich in Florida(Hymenoptera: Ichneumonidae: Ichneumoninae: Ichneumonini)

First records of Melanichneumon dreisbachi Heinrich in Florida (Hymenoptera: Ichneumonidae: Ichneumoninae: Ichneumonini)

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