@ARTICLE{TreeBASE2Ref20104, author = {Seraina Klopfstein}, title = {Revision of the Western Palaearctic Diplazontinae (Hymenoptera, Ichneumonidae)}, year = {2011}, keywords = {alpha taxonomy, molecular taxonomy, ITS2, CO1, barcoding}, doi = {}, url = {http://}, pmid = {}, journal = {European Journal of Taxonomy}, volume = {}, number = {}, pages = {}, abstract = {I revise the subfamily Diplazontinae to include 95 Western Palaearctic species, review morphological characters useful for species delimitation and identification, and clarify the status of some morphologically similar taxa using molecular approaches. I provide illustrated, dichotomous keys to the Western Palaearctic genera and species of the subfamily, and discuss the utility of the molecular markers CO1 and ITS2 for species delimitation in Diplazontinae. Four new species are described, Diplazon zetteli sp. nov., Eurytyloides umbrinus sp. nov., Sussaba roberti sp. nov., and Woldstedtius bauri sp. nov. The Nearctic Sussaba cultriformis (Ashmead), formerly a subspecies of Sussaba dorsalis (Holmgren), is raised to species level. The following taxa are valid species and hereby removed from synonymy: Episemura ensata (Bauer), stat. rev.; Homotropus frontorius (Thunberg), stat. rev.; Syrphoctonus desvignesi (Marshall), stat. rev. ; and Tymmophorus suspiciosus (Brischke), stat. rev. Sixteen new synonyms are established: Bioblapsis mallochi Rotheray of Bioblapsis cultiformis (Davis), syn. nov.; Diplazon neoalpinus Zwakhals of Diplazon albotibialis Dasch, syn. nov.; Diplazon bachmaieri Diller of Diplazon angustus Dasch, syn. nov.; Homocidus rubiginosum Schmiedeknecht of Enizemum scutellare (Lange), syn. nov.; Homocidus simulans Stelfox of Homotropus collinus (Stelfox), syn. nov.; Homotropus crassicrus Thomson and Homotropus nudus Dasch of Homotropus dimidiatus (Schrank), syn. nov.; Homocidus asyntactus Schmiedeknecht of Homotropus crassicornis Thomson, syn. nov.; Homocidus subopacus Stelfox and Homotropus quadrangularis Dasch of Homotropus frontorius (Thunberg), syn. nov.; Homotropus incisus Thomson and Homotropus reflexus Morley of Homotropus pectoralis (Provancher), syn. nov.; Tryphon nigricornis Zetterstedt, a former synonym of H. dimidiatus Schrank, is a synonym of Homotropus pictus (Gravenhorst), syn. nov.; Homotropus fraudulentus Dasch and Homotropus neopulcher Horstmann of Syrphoctonus desvignesi (Marshall), syn. nov.; Homotropus eximius Habermehl of Syrphoctonus tarsatorius (Panzer), syn. nov. I establish the following new combinations: Bioblapsis cultiformis (Davis), comb. nov.; Homotropus brevis (Hedwig), comb. nov.; Homotropus collinus (Stelfox), comb. nov.; Homotropus dimidiatus (Schrank), comb. nov.; Homotropus frontorius (Thunberg), comb. nov.; Homotropus pectoralis (Provancher), comb. nov.; Homotropus strigator (Fabricius), comb. nov.; Homotropus sundevalli (Holmgren), comb. nov. The present revision is the first comprehensive treatment of the Western Palaearctic Diplazontinae, provides the basis for taxonomic, faunistic, ecological and evolutionary studies in these hoverfly parasitoids, and exemplifies an integrated approach to taxonomy.} }

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