| id | 6971 (last modified: 21.1.2018) |
| title | Observations sur le genres Neojordensia Evans et Orthadenella n.g. en Europe occidentale (Gamasies, Dermanyssina, Ascidae) |
| year | 1973 |
| paper | Acarologia (Paris) |
| edition | 15 [1] |
| page | 18-32 |
| language | French |
| checked | paper |
| abstract | During the course of a two year microarthropod sampling of soil and litter of an old pasture in Normandy, it was established that the individuals of "Neojordensia levis" originating from the litter layer actually belong to three distinct species. Neojordensia lawrencei Evans (= Lasioseius berlesei (Ouds.) sensu Westerboer = L. frondeus Karg) was also examined then in order to assess the phylogenetical relationships between the last species and the three first ones. These relationships are far from being the genus tie. The family Ascidae is clearly delimited; it is indeed necessary to define correctly the familial sets within the coh. Dermanyssina in view of systematic investigations. Several additions are supplied to the generic definition of Neojordensia Evans; that of Orthadenella n.g. (type species Neojordensia lawrencei Evans) is provided. The main morphologiral differences between these two genera are listed (Table 1), as well as their similarities (see "Discussions") which are shown to be of convergent nature. A brief review of previous taxonomical treatments of the two genera is given. Two new Neojordensia species are described. Data on geography and habitats of the various taxa under study are supplied. The simultaneous occurence of the three Neojordensia species in the litter of the same grassland is discussed, as well as, some peculiarities of their seasonal dynamics during tlhe sampling period. |
| URL | http://www1.montpellier.inra.fr/cbgp/acarologia/article.php?id=3279Go to site |
| author | Athias-Henriot, Claire |