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| Tangelder, Ida R.M.. |
| In this study a taxonomic revision of the 20 nearctic species of the dorsalis-group is given. For each taxon the following data are presented: references, type material, material examined, diagnostic features, description, detailed drawings of male and female copulatory organs, biology and distribution with distribution maps. A separate key for males and females is presented. One new species is described (oosterbroeki), one is given new status (gnata) and one species is new for the Nearctic region (ramulifera). For the 20 taxa discussed, 37 names are known in literature; four of them are new synonymies, five other synonymies (proposed by Byers, in literis) are published for the first time. The taxonomic information is summarized in a checklist. |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/505177 |
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| Tangelder, Ida R.M.. |
| A taxonomic revision of the 29 palaearctic species of the dorsalis-group is presented. For most taxa the following data are included: references, type-material, material examined, diagnostic notes, (brief) description, detailed drawings of male and female copulatory organs, biology and distribution; for some others reference is made to recent literature. Six new species are described ( cirrata, difficilis, gaganboi, koreana, pjotri and spicula), one is given new status (sachalina) and one species is new for the Palaearctic region (occipitalis). One new synonymy is proposed ( stejnegeri = scurra) taken out of synonymy (microcera). The taxonomic information is summarized in a checklist. and one name is |
| Tipo: Article / Letter to the editor |
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| Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/505239 |
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| Tangelder, Ida R.M.. |
| A biogeographic analysis is presented for the Holarctic Nephrotoma dorsalis-group in relation to the palaeogeographic, climatic and floristic history of the Holarctic region in the Cenozoic. Holarctic intercontinental connections across the Atlantic and by way of Beringia are discussed as well as the biogeographic developments in both the Palaearctic and Nearctic regions. Much attention is paid to a comparison with other insect groups. It is concluded that the history of the dorsalis-group was enacted largely in the Tertiary, besides Pleistocene influences on diversity and distribution. The early Tertiary origin of the group is located in the eastern Palaearctic, and its members are supposed to have reached Europe not prior to the late Miocene. It is... |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/504741 |
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| Tangelder, Ida R.M.. |
| A reconstruction of the phylogenetic relationships is presented for the holarctic Nephrotoma dorsalis-group, comprising 47 species. Their relationships are analyzed according to the principles of Hennig (1966), briefly outlined under ‘Methods’. Discussed are the outgroups of Nephrotoma and of the dorsalis-group, their sister groups however could not be established yet. The copulation-mechanism of crane flies is described, followed by a discussion of the structures involved in both sexes, allowing a better understanding of the observed character changes. A total of 99 characters was used to work out the phylogeny. The monophyly of the dorsalis-group and of most species-groups could therefore be based on more than one synapomorphy. The most primitive members... |
| Tipo: Article / Letter to the editor |
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| Ano: 1985 |
URL: http://www.repository.naturalis.nl/record/505156 |
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