The identity of specimens belonging to the genus Euseius found on several trees in France is investigated. Previous molecular and morphological analyses have shown that the new species herein described is different from Euseius stipulatus. Among the 187 species belonging to the genus Euseius, four of them (Euseius querci, Euseius amissibilis, Euseius kirghisicus and Euseius longiverticalis) seem to be morphologically close to this new species. However, none were very similar. This paper reports the description of this new species: Euseius gallicus sp. nov. Kreiter and Tixier.
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"5 15 11 20 StIV 64 56 70 57 53 60 59 55 63 58 39 71 * * Dorsal shield width ( DSW ) Specimens from Belgium ( n=2 ) Specimens from the Netherlands ( n=3 ) Specimens from Turkey ( n=3 ) Original Description ( France , Tixier et al . 2009 ) * Dorsal shield length ( DSL ) licus Kreiter and Tixier 2009 was recently collected and described from France ( Tixier et al . 2009"
[Show abstract][Hide abstract] ABSTRACT: Euseius gallicus is reported from four additional European countries: Belgium, Germany, the Netherlands and Turkey. It is recorded from 4 plant species belonging to 4 families (Convolvulaceae, Malvaceae, Rosaceae and Solanaceae). Measurements based on collected adult females are provided. Finally, comparisons and further observations of type specimens have shown some mistakes on leg chaetotaxy to the original description. The corrected chaetotactic formula is therefore provided.
"In the western Palaearctic region, only four species belonging to the Euseius genus occur, namely E. finlandicus, E. scutalis, E. stipulatus, and the most recently described E. gallicus (Tixier et al., 2010). In Hungary, only E. finlandicus has been found so far. "
[Show abstract][Hide abstract] ABSTRACT: The authors give account of 7 new species, viz. Proctolaelaps striatus (Westerboer, 1963), Hypoaspis kargi Costa 1968, Hypoaspis fishtowni Ruf and Köhler 1993, Neoseiulus zwölferi (Dosse, 1957), Euseius stipulatus (Athias-Henriot, 1960), Neoseiulus subtilisetosus (Beglyarov, 1962), Neoseiulus pepperi (Specht, 1968) belonging to the order Mesostigmata, which have not been recorded so far in the Hungarian fauna.
Acta Phytopathologica et Entomologica Hungarica 05/2013; 48(1):149-154. DOI:10.1556/APhyt.48.2013.1.14
[Show abstract][Hide abstract] ABSTRACT: The identity of specimens belonging to the genus Euseius Wainstein, 1962 found on several trees in France is investigated. These specimens are morphologically close to Euseius stipulatus (Athias-Henriot, 1960) except for the shape of the spermatheca and the dorsal shield reticulation. The aim of the present study was to determine if these specimens belong to this latter species and if the shape of the spermatheca could be considered a reliable diagnostic character. Thirty-four characters, including idiosomal seta lengths, were measured and molecular tests (12S rDNA, COI mtDNA) were carried out. Although small, significant differences between populations of Euseius sp. were observed. The morphometric differences between E. stipulatus and Euseius sp. were very small except for the seta z2 and for the length of the ventrianal shield, as well as the length and form of the spermatheca. Molecular analyses support that Euseius sp. and E. stipulatus are two different species. Euseius sp. has been described as a new species to science in another publication under the name Euseius gallicus. Reliability of some morphological characters for species diagnosis is discussed.
Canadian Journal of Zoology 07/2009; 87(8):689-698. DOI:10.1139/Z09-057 · 1.30 Impact Factor