The genus Amphitetranychus Oudemans (Tetranychidae) consists of only three species, A. quercivorus (Ehara & Gotoh), A. savenkoae (Reck) and A. viennensis (Zacher). The original description of A. savenkoae was extremely simple and had no drawing of the aedeagus; however, a subsequent study described only the aedeagus. The present study investigated all three species in detail using a combination of morphological traits, crossbreeding experiments, esterase zymograms and the mitochondrial cytochrome c oxidase subunit I (COI) gene. Morphological differences in the peritremes and male aedeagi were observed among the three species. Complete reproductive isolation was confirmed in the reciprocal crosses between the morphologically similar A. savenkoae and A. quercivorus (no female offspring were produced). Esterase zymograms differed interspecifically, but not intraspecifically (among individuals in a given species). All three species formed clearly separate clades with 100% bootstrap values in the COI tree, and A. savenkoae was more closely related to A. quercivorus than to A. viennensis, which corresponded to the morphological similarity of their aedeagi and setal counts on tarsi IV. A key to Amphitetranychus species is provided.

A survey of mite fauna inhabiting citrus orchards in Abutig, Assiut Governorate, yielded the discovery of a new species, Heterodispus longisetae n. sp. (Acari: Scutacaridae). The new species is morphologically described and illustrated.

A survey of mite fauna inhabiting citrus orchards in Abutig, Assiut Governorate, yielded the discovery of a new species, Heterodispus longisetae n. sp. (Acari: Scutacaridae). The new species is morphologically described and illustrated.

A survey of mite fauna inhabiting citrus orchards in Abutig, Assiut Governorate, yielded the discovery of a new species, Heterodispus longisetae n. sp. (Acari: Scutacaridae). The new species is morphologically described and illustrated.

The Mullederia Wood, 1964 (Acari: Stigmaeidae) is a species-limited genus with a geographic distribution so far restricted to eastern Palaearctic, Indomalaya and Australasia regions. Mullederia sichuanensis Wang, 1986 is newly recorded from Japan based on specimens collected from two different evergreen broad-leaved forests at Bōsō Peninsula, Chiba Prefecture (Honshu). Adult females, males and deutonymphs are redescribed and illustrated. Interspecific morphological variations among world species of Mullederia are provided. Also, stigmaeid mite species recorded from Japan are listed.

Faunistic information about feather mites in Egypt is scarce, as well as in the Middle East region. Gabucinia delibata (Robin, 1877) (Astigmata: Pterolichoidea: Gabuciniidae) is recorded for the first time in Egypt from the hooded crow, Corvus cornix (Linnaeus, 1758) (Passeriformes: Corvidae). Adult males and females of G. delibata are redescribed and illustrated. Examined specimens were compared with previous description and anomalous features were discussed.Conclusion:The new mite record reported here provides descriptive information for future taxonomic research of feather mites in Egypt. Hopefully, the present work would encourage more comprehensive surveys in the Middle East region since a large number of undiscovered species is expected.

Specimens of Eutetranychus palmatus were collected from leaves of date palm, Phoenix dactylifera L. and Phoenix roebelinii (Arecaceae) in Latakia city, Syria. This is the first record of E. palmatus from Syria. Taxonomic remarks of males and females are provided.

Lassenia japonica Haitlinger, Negm & Šundić sp. nov. with fnCx 1-1-2 is described and illustrated from larvae collected from Maesa japonica (Primulaceae) in Japan. It is the first species of Tanaupodidae found in Japan. A key to Lassenia (larvae) of the world is provided.

Four feather mites – Analges spiniger Giebel, 1871 (Analgidae), Pandionacarus fuscus (Nitzsch, 1818), Zachvatkinia issykkulica Chirov, 1978 (Avenzoariidae), and Proctophyllodes sylviae Gaud, 1957 (Proctophyllodidae) – are reported for the first time in Saudi Arabia. Males and females of A. spiniger and Pr. sylviae were collected from the blackcap, Sylvia atricapilla dammholzi Stresemann, 1928 (Passeriformes), while Z. issykkulica and P. fuscus specimens were collected from the Saunders’s tern, Sternula saundersi (Hume, 1877) (Charadriiformes) and the osprey, Pandion haliaetus (Linnaeus, 1758) (Accipitriformes), respectively. The families Analgidae and Proctophyllodidae, as well as the genus Pandionacarus, are new to this country.

Agistemus lobatus Ehara, 1964 and A. terminalis (Quayle, 1912) (Stigmaeidae) are cosmopolitan predatory mites and appear on various plants in Japan. They are so close morphologically and can be mainly separated based on the lengths of dorsal setae sci and c2. The present study aimed to redescribe these two species for detailed morphological variations and generate sequences of partial mitochondrial cytochrome c oxidase subunit I (COI) as DNA barcode data. Our results with DNA barcoding and morphology well separated A. lobatus from the close species A. terminalis.