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New records of phytoseiid mites from italy, with description of a new species and a redescription of other two (Parasitiformes, phytoseiidae)
Full text linkThe Italian phytoseiid fauna consists of 91 valid species. Eighteen of them were described as new species from materials collected in various Italian localities. In the present paper we report nine new records from the Italian fauna and describe the new species, Neoseiulus mediterraneus belonging to the subfamily Amblyseiinae. Complementary descriptions of two rare species, namely: Typhlodromus (Anthoseius) singularis and Typhlodromus (Typhlodromus) knisleyi, were also added
FIGURE 1 in Generic Concept Of The Phytoseiids (Acari: Phytoseiidae) According To Athias-Henriot
No full textFIGURE 1: Claire Athias-Henriot (1921-2004).Published as part of Tsolakis, H. & Ragusa, S., 2010, Generic Concept Of The Phytoseiids (Acari: Phytoseiidae) According To Athias-Henriot, pp. 415-429 in Acarologia 50 (4) on page 416, DOI: 10.1051/acarologia/20101986, http://zenodo.org/record/539477
FIGURE 3 in Generic Concept Of The Phytoseiids (Acari: Phytoseiidae) According To Athias-Henriot
No full textFIGURE 3: Correspondances between Athias-Henriot's. (a) – and Hirschmann's; (b) – chaetotactic nomenclature systems. The drawing of Amblyseius leucophaeus Athias-Henriot 1959 is considered here as an example (after Athias-Henriot, 1957, 1959 modified).Published as part of Tsolakis, H. & Ragusa, S., 2010, Generic Concept Of The Phytoseiids (Acari: Phytoseiidae) According To Athias-Henriot, pp. 415-429 in Acarologia 50 (4) on page 418, DOI: 10.1051/acarologia/20101986, http://zenodo.org/record/539477
FIGURE 4 in Generic Concept Of The Phytoseiids (Acari: Phytoseiidae) According To Athias-Henriot
No full textFIGURE 4: I – Dorsal chaetotactic nomenclature system adopted by Athias-Henriot for the Amblyseiini after Lindquist & Evans (1965). For more explanation see note 4. II – Position of the solenostome gv3 on ventrianal shield of the protoadenic gamasid Dendrolaelaps sp. (A), and of two phytoseiid mites: Dictydionotus desertus (B) and Cydnodromus fallacoides (C): a - pre-anal sigilla; b - peri-anal sigilla; V4 - para-anal setae (after Athias-Henriot, 1977 and 1978 modified).Published as part of Tsolakis, H. & Ragusa, S., 2010, Generic Concept Of The Phytoseiids (Acari: Phytoseiidae) According To Athias-Henriot, pp. 415-429 in Acarologia 50 (4) on page 419, DOI: 10.1051/acarologia/20101986, http://zenodo.org/record/539477
Generic Concept of the Phytoseiids (Acari: Phytoseiidae) according to Athias-Henriot
Full text linkThe economic importance of the Phytoseiidae motivated many scientists to work on the systematics of this family. One of them was the French acarologist Claire Athias-Henriot. In her first work, she tackled the question of supraspecific groupings within this family from an evolutionistic point of view, and suggested a system for numbering dorsal shield setae, that could be applied to both hypotrichous and holotrichous forms. She also looked for other characters, such as the ratios of the distance between the insertions of some setae on dorsal and sternal shields, the presence of macrosetae on legs, and the length/width ratio of the ventrianal shield. Following Dosse (1957; 1958) who used the shape of the insemination apparatus (spermatheca) for taxonomic purposes, she also adopted this character to define genera, initially without giving it a particular weight. Meanwhile, she also studied other gamasids, and in 1966 considered the insemination apparatus as the main character for distinguishing families of Gamasida. She distinguished the Phytoseiidae within the Laelapoidea (sic), by the type of insemination apparatus and the dorsal hypotrichy. In 1966, she adopted Lindquist and Evans (1965) chaetotactic nomenclature system in her "Contribution à l’étude des Amblyseius paléarctiques (Acariens anactinotriches, Phytoseiidae)". In 1967, she advanced the hypothesis that the insemination apparatus was best for defining phylogenetic relationships because it was less subject to hereditary modifications than external body parts that are in direct contact with the environment. One year later, Athias-Henriot published an exhaustive study on the insemination apparatus of Laelapoidea stating the taxonomic importance of this structure. She also studied adenotaxy and sigillotaxy in order to find characters to define natural lineages. In 1975, she studied the dorsal organotaxy of Amblyseiini in order to define species characters. Two years later she redefined the genus Cydnodromus emphasizing both the importance of the insemination apparatus and the evolution of solenostome gv3. In 1978 and 1981, while describing respectively the new genera Dictydionotus and Pegodromus, Athias-Henriot considered the insemination apparatus and the other characters as having the same weight. In 1983, Ragusa and Athias-Henriot redescribed the genus Neoseiulus; in this case the insemination apparatus was considered as the main character for the definition of the genus, with a series of other (related) characters
Phytoseiid mites associated with forest trees in two "Natura 2000" locations: S.Adrian woods (Sicily) and Fraktò virgin forest (Greece).
No full textBiological parameters of Neoseiulus longilaterus (Athias-Henriot) (Parasitiformes, Phytoseiidae) fed on prey and pollen in laboratory conditions
No full textTetranychus urticae is the most important pest on different crops worldwide. Search for endemic phytoseiid mites co-occurring with the above pest, which might be good candidates as biocontrol agents, represents the policy followed by most scientists in recent years. The aim of the present work was to assess the various biological and demographic parameters of Neoseiulus longilaterus, associated with T. urticae on weeds, in laboratory conditions using the latter tetranychid and pollen of Oxalis pes-caprae as food. The results showed a better performance of the predator on the prey as regards the postembryonic development (7.63 and 8.18 days for prey and pollen respectively) and the demographic parameters (r(m) 0.158 and 0.102, Ro 26.89 and 18.76, DT 4.39 and 6.78 for T. urticae and Oxalis respectively). Our data shows that N. longilaterus have similar traits with some phytoseiid species belonging to type II selective predators, but also with some others included within type III generalist predators. As a matter of fact, it can be considered an interesting biocontrol agent towards T. urticae, able also to develop on alternative foods as the pollen of Oxali
Acari Fitoseidi (Parasitiformes, Phytoseiidae) associati a piante coltivate e spontanee in un agroecosistema complesso
No full textAcari Fitoseidi (Parasitiformes, Phytoseiidae) associati a piante coltivate e spontanee in un agroecosistema complesso
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