Phytoseiid mites (Acari: Phytoseiidae) in the northern coastal region of the Rio Grande do Sul State, Brazil

Abstract

This work aims to evaluate the phytoseiid fauna in natural environments of the coastal plain of the northern coast of the Rio Grande do Sul State, Brazil. The plants were sampled from locations within the counties of Tramandaí and Osório during the last month of each season. Three locations were chosen in the Tramandaí area: (A1) -sand dunes; (A2) -mangrove and (A3) -forest plantation; and one in Osório: (A4) -hill with dense rainforest. A total of 561 specimens belonging to 29 species were collected. The preserved areas presented higher richness, given that the A4 area stood out as the richest, with 18 species, and A1 presented the lowest richness, with four species. The most abundant genus was Amblyseius, with five species, followed by Neoseiulus and Iphiseiodes, with three species. A redescription of Typhlodromus (Anthoseius) ornatus and a key for the species in this paper are provided.

Communities of predatory mites (Phytoseiidae and Stigmaeidae) in different environments of the Brazilian Pampa

“…In Pantanal, Mendonça et al (2019) found 35 phytoseiid species on 40 native plants and Rodrigues et al (2020) found 11 phytoseiid species associated with Myrtaceae plants in the Caatinga. In the Brazilian Atlantic Forest, Ferla and Moraes (2002) found 23 phytoseiid species on 45 plant species; Castro and Moraes (2010) found 54 phytoseiid species on 187 species of plants; Demite et al (2013) found 31 Phytoseiid species on two native plants in fragments of semideciduous seasonal forest; Rocha et al (2015) reported 29 Phytoseiid species on 62…”

“…Similar to Z. malvinae, which is related to Grassland, it is distributed throughout Brazil and occurs in rubber trees, vineyards, citrus, and coffee crops (Matioli et al 2002; De Vis et al 2006; Mineiro et al 2006; Diehl et al 2012. Typhlodromalus aripo was more associated with Grazing and Grazing Exclusions, this species was also associated to unstable environments with extreme windy conditions (Rocha et al 2015).…”

“…Plant mites represent one of the most diverse and abundant groups in terrestrial ecosystems (Walter and Proctor 2013). In spite of that, studies that analyze their potential as indicators of both anthropised environments and preserved environments are scarce (Rocha et al 2015). One of the most abundant groups are the predatory mites of the families Phytoseiidae and Stigmaeidae, which are abundant on plants worldwide (Gerson et al 2003) and are often employed for biological control issues (i.e.…”

A new species of Amblydromalus Chant & McMurtry (Acari: Phytoseiidae), with notes on occurrence of genus in South America

“…In material collected from A. ntundu from Cameroon and DR Congo the ratio was 3.1: 1 (Moraes et al 2006). In the case of A. manihoti, a species frequently collected in South America, the s4: Z1 ratio ranged from 1.8: 1 (Rocha et al 2015) to 4.1: 1 (Guanilo et al 2008, Demite et al 2017. In this way, the s4 / Z1 ration seems to be an unstable character and, therefore, would not be the best character to separate two genera.…”

Complementary description of Neoseiulus tunus (De Leon) (Acari: Mesostigmata: Phytoseiidae) and observation on its reproductive strategy

“…Measurements of the holotype of N. tunus were provided by Moraes et al (2000), whereas complementary descriptions were provided from populations of the French Caribbean islands (Moraes et al, 2000), Argentina (Guanilo et al, 2008a), Brazil (Lofego et al, 2004;Ferla et al, 2011;Gonçalves et al, 2013;Rocha et al, 2015) and Peru (McMurtry and Moraes, 1989;Guanilo et al, 2008b). Due to the great similarity between N. tunus and N. neotunus, the possible synonymy between them was mentioned in the literature (Moraes and Mesa, 1988;Lofego, 1998).…”