The family Phytoseiidae Berlese is considered to be comprised of 3 subfamilies: Amblyseiinae Muma, Phytoseiinae Berlese and Typhlodrominae New status. The taxa comprising the subfamilies Phytoseiinae, with 142 known species, and Typhlodrominae, with 452 known species, are reviewed to the level of species groups. There are 3 genera and 5 species groups in the Phytoseiinae and 6 tribes, 20 genera, 8 subgenera and 28 species groups in the Typhlodrominae. Four new tribes, 5 new genera, one new subgenus and 13 new species groups are proposed. The exemplar species of each of the taxa are illustrated.

A review of the subfamilies Phytoseiinae and Typhlodrominae (Acari: Phytoseiidae)

Neoseiulini new tribe is considered to be comprised of eight genera, one of which is new, with a total of 321 nominal species. These genera are reviewed to the level of species groups and subgroups. Exemplars for each taxon are illustrated.

A review of the subfamily Amblyseiinae Muma (Acari: Phytoseiidae): Part I. Neoseiulini new tribe

Sabelis, M.W. and Bakker, F.M., 1992. How predatory mites cope with the web of their tetranychid prey: a functional view on dorsal chaetotaxy in the Phytoseiidae. Exp. Appl. AcaroI., 16: 203-225. It has been proposed from behavioural observations that the ability of Phytoseiidae to penetrate the web is related to chaetotaxy. As phytoseiid species differ widely in chaetotaxy, as well as in their ability to cope with complex webs, this hypothesis was tested by studying relations between these two variables. In this paper we develop a simple method to quantify the degree to which the soma is protected from contact with the silk and apply it to phytoseiid species for which behavioural performance in the web is known from the literature. It is found that the better protected species experience less hinder from complex webs, such as produced by Tetranychus spp. Moreover, they appear to be more successful in exterminating local populations of Tetranychus spp. Thus, setal patterns in the Phytoseiidae may well be a good indicator for selecting candidates for biological control of Tetranychus spp. Finally, we propose a parsimonious scenario for the evolution of dorsal chaetotaxy in the Phytoseiidae.

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How predatory mites cope with the web of their tetranychid prey: a functional view on dorsal chaetotaxy in the Phytoseiidae

The tribe Amblyseiini Wainstein is diagnosed and 3 new subtribes are proposed: Amblyseiina n. subtribe, Proprioseiopsina n. subtribe, and Arrenoseiina n. subtribe. The subtribe Amblyseiina is reviewed in detail. Three new genera are proposed: Transeius n. gen., Maunaseius n. gen., and Graminaseius n. gen. The established genera are: Amblyseiella Muma, Amblyseius Berlese, Chelaseius Muma and Denmark, and Honduriella Denmark and Evans. Keys to the genera in the subtribe Amblyseiina are provided and exemplar species are figured. We propose a cladogram suggesting the relationships between the 3 subtribes in the Amblyseiini and between the constituent genera in the Amblyseiina.

A review of the subfamily Amblyseiinae Muma (Acari: Phytoseiidae): Part III. the tribe Amblyseiini Wainstein, subtribe Amblyseiina n. subtribe

The tribe Euseiini n. tribe is proposed and diagnosed and 3 new subtribes are proposed and diagnosed: Ricoseiina n. subtribe, Typhlodromalina n. subtribe, and Euseiina n. subtribe. Four new genera are proposed: Prasadromalus n. gen., Ueckermannia n. gen., Amblydromalus n. gen., and Moraeseius n. gen. Six established genera are included in the tribe Euseiini: Euseius Wainstein, Iphiseius Berlese, Quadromalus Moraes, Denmark and Guerrero, Ricoseius De Leon, Tenuisternum Fiaboe, Moraes and Gondim, and Typhlodromalus Muma. We propose Iphiseius degenerans Berlese, 1921, as the senior synonym of I. martigellus (El-Badry), 1968. We propose the new name Euseius liangi for sacchari (Liang and Ke), 1983, a junior homonym of sacchari (Ghai and Menon), 1967, and we propose the new name prasadi for pruni (Gupta), 1975, a junior homonym of pruni (Oudemans), 1929. Keys to and diagnoses of the genera are provided and exemplar species are figured. We propose a cladogram suggesting the relationships between the 3 ...

A review of the subfamily Amblyseiinae muma (Acari: Phytoseiidae): Part VI. the tribe Euseiini n. tribe, subtribes Typhlodromalina n. subtribe, Euseiina n. subtribe, and Ricoseiina n. subtribe

Forty-one pairs of setae and a single post-anal seta are known to occur on the idiosoma of adult Phytoseiidae. Twenty-one pairs and the post-anal seta are present on all known species in the family. Variations in the occurrence of the remaining 20 pairs produce different idiosomal setal patterns: 85 patterns for the adult females and 71 for the adult males. Comparisons of the setal patterns between different body areas show that there has been extensive homoplasy in the evolution of idiosomal setal patterns. Idiosomal chaetotaxy of the Phytoseiidae is compared to that of the Ascinae and the Otopheidomenidae.

E. Yoshida-Shaul

Papers

Adult idiosomal setal patterns in the family Phytoseiidae (Acari: Gamasina)