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First Records of the Subfamily Acaenitinae in Florida (Hymenoptera: Ichneumonidae)

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First Records of the Subfamily Acaenitinae in Florida (Hymenoptera: Ichneumonidae) 242 Volume 15, No.4, December, 2001, INSECTA MUNDI First records of the subfamily Acaenitinae in Florida (Hymenoptera: Ichneumonidae) Acaenitines have five genera and 18 species in Spilopteroti uicinum (Cresson): Material exam­ North American forests (Townes 1960). Several of ined. 15 females and 4 males. Alachua Co., Gaines­ these occur in the eastern United States, but none ville, Micanopy, Paynes Prairie, San Felasco Ham­ is recorded from Florida; however, recent fieldwork mock; Clay Co., Goldhead Branch St. Pk.; Levy Co., inFloridayieldedfour species:Arotes decorus (Say), Manatee Springs St. Pk.; Liberty Co., Torreya St. Spilopteronformosum. (Cresson), S. occiputale (Cres­ Pk. Habitat. Mesic to moist pines and hardwoods. son) and S. uicinum (Cresson) . These inhabit ma­ Phaenology. 3 in III, 8 in IV, 8 in V. ture forests and attackwood-boring beetle larvae in dead trunks. There are no Florida host records, but Taxonomy. An excellent, well-illustrated revision Townes (1960) and Cushman and Rohwer (1920) of the North American Acaenitinae is provided by report that in the northeastern states A. decorus Townes (1960). was reared from Tomoxia (Mordellidae) in Carya (Juglandaceae), S. formoeum from Bellamira (Cer­ Biogeography. Acaenitines have centers of diver­ ambycidae) in Betula (Betulaceae), S. occiputale sity in the eastern Palaearctic, Oriental, and Ethio­ from Strangalina (Cerambycidae) in Quercus (Fa­ pian regions. Remarkably, none is known from gaceae) and S. uicinum from Leptura (Ceramby­ SouthAmerica, the Mesoamerican Neotropics have cidae) in Pinus (Pinaceae) only two species of Arotes, and the genera found in Florida records are detailed in the list that NorthAmerica are more speciose in the Palaearctic follows. All material is in the Florida State Collec­ and/or the Oriental regions. For example, Arotes tion of Arthropods. has seven Palaearctic species (Europe, China, Ja­ pan), while Spilopteron.ui the Old Worldis limitedto Arotes decorus (Say): Material examined. 21 fe­ the easternPalaearctic, with 16 speciesinChinaand males.Alachua Co., Beville Heights, Gainesville, La Japan. Crosse, Paynes Prairie; Lake Co., Tavares; Liberty Co., Torreya St. Pk.; Suwannee Co., Suwannee Acknowledgments. Drs. Lionel A. Stange and River St. Pk. Habitat. hardwoods, often riparian. Mike Thomas provided access to the FSCA and help Phaenology. 2 in IV, 6 inV, 3 inVI, 8 in VII, 1 in X, in the field. The Florida Department of Recreation 1 in XI. and Parks issued collecting permits. Spilopteroti formoeum australe (Townes): Material Literature cited examined. 5 females, 1 male. Alachua Co., Gai­ nesville, La Crosse; Liberty Co., Torreya St. PIc Cushman, R.A. and S.A. Rohwer. 1920. The Habitat. Moisthardwoods, oftenriparian. Phaenol­ North American Ichneumon Flies of the Tribe ogy. 4 in IV, 2 in V. Acoenitinae. Proc. U.S. Natl. Museum. 57: 503­ 523. Spilopteroti occiputale (Cresson): Material exam­ Townes, H.K. 1960. Ichneumon-Flies of America ined. 37 females, 56 males. Alachua Co., Devil's North of Mexico: 2. Subfamilies Ephialtinae, Millhopper St. Preserve, Gainesville, La Crosse, Xoridinae, andAcaenitinae. U.S. Natl. Museum Paynes Prairie, San Felasco Hammock; Clay Co., Bull. 216(2): 1-676. GoldheadBranchSt. Pk.; Gilchrist Co., Wilcox; Levy Co.; Liberty Co., Torreya St. Pk.; Marion Co., Ocala - Charles C. Porter, Florida State Collection Natl. For.; Suwannee Co., Suwannee River St. Pk. of Arthropods, P. O. Box 147100, Gainesville, Habitat. Mesic to moist hardwoods, sometimes Florida32614-7100 riparian. Phaenology. 6 in IV, 82 in V, 5 in VI..
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