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A study of the genus Trychosis Foerster in Europe (Hymenoptera, Ichneumonidae, Cryptinae) Naturalis
Rossem, G. van.
INTRODUCTION This study was undertaken to prepare keys to the European species of the genus Trychosis Foerster. The older keys by Schmiedeknecht (1890 and 1904-1906), mostly based on Tschek's keys in his study of the genus Cryptus (1870b), do not lead to satisfactory results. This is due to the fact that several characters used by Tschek are not critical, while several of the species described by him have turned out to be identical with others. Nevertheless Tschek's pioneer work in this group deserves our admiration. When I had advanced somewhat with the interpretation of Tschek's type material, I became curious about the species described by some other authors, viz. Thunberg, Gravenhorst and Thomson. I had the opportunity to study some of their type...
Tipo: Article / Letter to the editor Palavras-chave: 42.75.
Ano: 1966 URL: http://www.repository.naturalis.nl/record/317552
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Key to the genera of the Palaearctic Oxytorinae, with the description of three new genera (Hymenoptera: Ichneumonidae) Naturalis
Rossem, G. van.
A revised key to the Palaearctic genera of the subfamily Oxytorinae (Hymenoptera: Ichneumonidae) is given. Three new genera are described: Pantomima gen. nov. (type-species: Pantomima festata spec. nov.), Fetialis gen. nov. (type.-species: Fetialis alacris spec. nov.), and Epitropus gen. nov. (type-species: Epitropus insolitus spec. nov.). A tentative key to the females of the subgenus Eusterinx Förster, 1868 is included and one new species, Eusterinx (E.) fabulosa spec. nov., is described.
Tipo: Article / Letter to the editor Palavras-chave: Ichneumonidae; Oxytorinae; Palaearctic; Key; Genera; 42.75.
Ano: 1990 URL: http://www.repository.naturalis.nl/record/319038
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New Oxytorinae from Siberia, with revised keys to Plectiscidea Viereck and Eusterinx Forster s.l. (Hymenoptera: Ichneumonidae) Naturalis
Rossem, G. van.
A revised key to the females of the Palaearctic species of the genus Plectiscidea Viereck, 1914 (Hymenoptera: Ichneumonidae; Oxytorinae) is given. Two new species from Siberia are described: Plectiscidea (Plectiscidea) obscura and P. (P.) spuria. Of P. (P.) subteres (Thomson, 1888) and P. (P.) melanocera (Forster, 1871) a new survey of characters is given. The holotype of Aniseres lubricus Förster, 1871 was re-examined and it is ascertained that it represents a species of Pantisarthrus Förster, 1871. One new species of the genus Aniseres Förster, 1871, is described, A. paradoxus spec, nov., and two new species of the genus Eusterinx Förster: E. (? Holomeristus) similis and E. (? Holomeristus) truculenta. A revised key to the females of the Palaearctic...
Tipo: Article / Letter to the editor Palavras-chave: Ichneumonidae; Oxytorinae; Palaearctic; Siberia; Keys; Plectiscidea; Pantisarthrus; Aniseres; Eusterinx; 42.75.
Ano: 1991 URL: http://www.repository.naturalis.nl/record/318373
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