Eighteen predatory mite species of the family Phytoseiidae are reported from three sites of the Cerrado ecosystem in the State of S o Paulo, southeastern Brazil, on seven plant species of the family Myrtaceae. This paper provides a list of those species and compares relevant morphological characteristics of the specimens collected with those of the original descriptions and/ or redescriptions of the corresponding species. A key is provided to help in the separation of the species mentioned in the paper. Some of the species collected have been reported as common predators on dominant crops in the region where the work was done. Their occurrence on Myrtaceae plants found naturally in the Cerrado ecosystem indicates that those plants could represent important reservoirs of those predators.
We describe a new species of the genus Rhynchohydracarus, R. armiger n. sp., from central Brazil, including complete information for female and male, accompanied by DNA barcode sequences. It is the first record of water mites for the running waters of the Cerrado biome. We present a proposal for the homologies of dorsalia, ventralia, and glandularia in Rhynchohydracaridae and also provide an identification key for the known species of the genus.
We describe a new species of the genus Clathrosperchonella, C. olovi sp. nov. from Brazil, including complete information for female, male and larva. This brings the number of named species in the Rhynchohydracaridae to thirteen. In addition, we provide a key to named species of Clathrosperchonella.
Gamasellodes unalpalmi Mesa, Abo-Shnaf & Rueda-Ramirez sp. nov. and Zerconopsis zumbambicae Mesa, Abo-Shnaf & Rueda-Ramirez sp. nov. are described based on the morphology of adults obtained from litter and soil samples collected at Valle del Cauca province, Colombia. A complement to a recently published key to the world species of Gamasellodes and a key for the separation of females of the 18 recognizable world species of Zerconopsis are provided.
The first description of the larva of Hydryphantes ramosus Daday, 1905 is given. Morphological studies of both larva and female are presented, based on slide-mounted specimens and SEM.
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