Mites play an important role in citrus production whether as pests or beneficial predators. Based on published works, about 149 identified mite species representing 39 families were previously reported from citrus orchards in Egypt. Field surveys were conducted fortnightly from October 2014 to February 2016 in twenty-eight citrus orchards of eight districts in Assiut Governorate, Egypt to determine the species composition of phytophagous and predatory mites. Also, the incidence and distribution of the most important species were reported. Samples were taken from plant leaves, buds and fruits. The citrus brown mite, Eutetranychus orientalis (Klein, 1936) (Tetranychidae), the red and black flat mite, Brevipalpus phoenicis (Geijskes, 1939) (Tenuipalpidae) and the broad mite, Polyphagotarsonemus latus (Banks, 1904) (Tarsonemidae) seemed to be the most common phytophagous species found in citrus orchards. Several predatory mite species of numerous families were also recorded, of these, Amblyseius swirskii Athias-Henriot, 1962; Typhlodromus (Typhlodromus) pyri Scheuten, 1857 (Phytoseiidae) and Agistemus exsertus González-Rodríguez, 1963 (Stigmaeidae) were found to be the most abundant predatory species inhabiting the leaves of mandarin, lime and orange, while Cheletogenes ornatus (Canestrini and Fanzago, 1876) and Hemicheyletia bakeri (Ehara, 1962) (Cheyletidae) were observed mostly on the fruits. Quantifying the presence of various predatory species inhabiting citrus trees will be an important step for pest mites control. In subsequent studies these predators can be used in biological control programs.

Mites play an important role in citrus production whether as pests or beneficial predators. Based on published works, about 149 identified mite species representing 39 families were previously reported from citrus orchards in Egypt. Field surveys were conducted fortnightly from October 2014 to February 2016 in twenty-eight citrus orchards of eight districts in Assiut Governorate, Egypt to determine the species composition of phytophagous and predatory mites. Also, the incidence and distribution of the most important species were reported. Samples were taken from plant leaves, buds and fruits. The citrus brown mite, Eutetranychus orientalis (Klein, 1936) (Tetranychidae), the red and black flat mite, Brevipalpus phoenicis (Geijskes, 1939) (Tenuipalpidae) and the broad mite, Polyphagotarsonemus latus (Banks, 1904) (Tarsonemidae) seemed to be the most common phytophagous species found in citrus orchards. Several predatory mite species of numerous families were also recorded, of these, Amblyseius swirskii Athias-Henriot, 1962; Typhlodromus (Typhlodromus) pyri Scheuten, 1857 (Phytoseiidae) and Agistemus exsertus González-Rodríguez, 1963 (Stigmaeidae) were found to be the most abundant predatory species inhabiting the leaves of mandarin, lime and orange, while Cheletogenes ornatus (Canestrini and Fanzago, 1876) and Hemicheyletia bakeri (Ehara, 1962) (Cheyletidae) were observed mostly on the fruits. Quantifying the presence of various predatory species inhabiting citrus trees will be an important step for pest mites control. In subsequent studies these predators can be used in biological control programs.

Mites play an important role in citrus production whether as pests or beneficial predators. Based on published works, about 149 identified mite species representing 39 families were previously reported from citrus orchards in Egypt. Field surveys were conducted fortnightly from October 2014 to February 2016 in twenty-eight citrus orchards of eight districts in Assiut Governorate, Egypt to determine the species composition of phytophagous and predatory mites. Also, the incidence and distribution of the most important species were reported. Samples were taken from plant leaves, buds and fruits. The citrus brown mite, Eutetranychus orientalis (Klein, 1936) (Tetranychidae), the red and black flat mite, Brevipalpus phoenicis (Geijskes, 1939) (Tenuipalpidae) and the broad mite, Polyphagotarsonemus latus (Banks, 1904) (Tarsonemidae) seemed to be the most common phytophagous species found in citrus orchards. Several predatory mite species of numerous families were also recorded, of these, Amblyseius swirskii Athias-Henriot, 1962; Typhlodromus (Typhlodromus) pyri Scheuten, 1857 (Phytoseiidae) and Agistemus exsertus González-Rodríguez, 1963 (Stigmaeidae) were found to be the most abundant predatory species inhabiting the leaves of mandarin, lime and orange, while Cheletogenes ornatus (Canestrini and Fanzago, 1876) and Hemicheyletia bakeri (Ehara, 1962) (Cheyletidae) were observed mostly on the fruits. Quantifying the presence of various predatory species inhabiting citrus trees will be an important step for pest mites control. In subsequent studies these predators can be used in biological control programs.

On the occurrence of mite species affiliated to the Acaridida in Egypt is still far below the taxa discovered in other countries despite the description of many species and few genera especially in Upper Egypt. The current study focused on describing two new species pertaining to the families Acaridae (Caloglyphus citri n. sp.) and Histiostomatidae (Histiostoma herbali n. sp.) described herein as hypopi (heteromorphic deutonymphs) from soil and bermuda grass in citrus orchards in Assiut, Egypt.

On the occurrence of mite species affiliated to the Acaridida in Egypt is still far below the taxa discovered in other countries despite the description of many species and few genera especially in Upper Egypt. The current study focused on describing two new species pertaining to the families Acaridae (Caloglyphus citri n. sp.) and Histiostomatidae (Histiostoma herbali n. sp.) described herein as hypopi (heteromorphic deutonymphs) from soil and bermuda grass in citrus orchards in Assiut, Egypt.

On the occurrence of mite species affiliated to the Acaridida in Egypt is still far below the taxa discovered in other countries despite the description of many species and few genera especially in Upper Egypt. The current study focused on describing two new species pertaining to the families Acaridae (Caloglyphus citri n. sp.) and Histiostomatidae (Histiostoma herbali n. sp.) described herein as hypopi (heteromorphic deutonymphs) from soil and bermuda grass in citrus orchards in Assiut, Egypt.

Vulgarogamasus edurus sp. nov. (Acari: Parasitidae) is described based on females, deutonymphs and males extracted from leaf litter and soil in Ami, Ibaraki Prefecture, Japan. Morphological differences between the new species and its closely related species, Vulgarogamasus fujisanus (Ishikawa, 1972), are recorded based on the examination of type materials. Information about parasitid mites reported in Japanese literature is reviewed, and a key to species is provided.

Mites exploit various symbiotic associations with insects and other arthropods, mainly parasitism and phoresy. Faunistic information of parasitic and phoretic mites on insects in Egypt is reviewed. Previous published records are gathered and, in some cases, altered. This paper presents an annotated list of the 120 species, including unidentified spp., of mites extracted from insects in Egypt to date. Mite species belong to 42 families [16 of Mesostigmata, 19 of Prostigmata, five of Astigmata and two in Cryptostigmata (Oribatida)]. Information about insect hosts, attachment sites and geographic distribution is provided.

A survey of gamasid mites (Arachnida: Acari: Mesostigmata) associated with domestic and wild birds in Egypt was conducted. In total, 16 species within 10 families were collected from 22 bird species. The most abundant species belonged to the genera Dermanyssus Dugès (Dermanyssidae), Ornithonyssus Sambon, and Steatonyssus Kolenati (both Macronyssidae). Among various birds examined, the distribution and occurrence of mites were recorded. Taxonomic remarks about the morphology of the collected mites are presented to facilitate species discrimination for non-acarologists. Steatonyssus longipes Radovsky & Yunker, 1963, previously described as a new species from the Egyptian slit-faced bat, Nycteris thebaica Geoffroy (Chiroptera), is first recorded from various bird hosts in Egypt. Among the examined birds, chickens, Gallus gallus domesticus (Linnaeus) (Galliformes); palm doves, Streoptopelia senigalensis aegyptiacus (Linnaeus); domestic pigeons, Columba livia domestica Gmelin (both Columbiformes); and house sparrows, Passer domesticus niloticus, were the highly mite-infested birds. Commonly, mites were observed under the wings, around the vent region, in the breast area, and around the head and neck. The present study showed that Egyptian birds harbor various species of ectoparasitic mites, with chickens having more diversity, and macronyssid and dermanyssid mites are the most abundant.

The tomato russet mite, Aculops lycopersici (Tryon) (Trombidiformes: Eriophyidae), is reported for the first time in Yemen from tomatoes, Solanum lycopersicum L. (Solanaceae). This is the second record of A. lycopersici from the Arabian Peninsula after Saudi Arabia.