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.

Two new mite species of the genus Caloglyphus Berlese, 1923 (Acari: Acaridae) are described and illustrated based on deutonymphal stages collected from mango orchards in Assiut, Upper Egypt. The new species, C. mangiferus sp. nov. and C. similares sp. nov., were extracted from soil samples under the mango trees. The new species are characterized by having a pair of short peduncles globosely setae situated dorsosublaterally on the idiosoma.

Two new mite species of the genus Caloglyphus Berlese, 1923 (Acari: Acaridae) are described and illustrated based on deutonymphal stages collected from mango orchards in Assiut, Upper Egypt. The new species, C. mangiferus sp. nov. and C. similares sp. nov., were extracted from soil samples under the mango trees. The new species are characterized by having a pair of short peduncles globosely setae situated dorsosublaterally on the idiosoma.

Two new mite species of the genus Caloglyphus Berlese, 1923 (Acari: Acaridae) are described and illustrated based on deutonymphal stages collected from mango orchards in Assiut, Upper Egypt. The new species, C. mangiferus sp. nov. and C. similares sp. nov., were extracted from soil samples under the mango trees. The new species are characterized by having a pair of short peduncles globosely setae situated dorsosublaterally on the idiosoma.

The mango spider mite, Oligonychus mangiferus (Rahman and Sapra) (Tetranychidae) and the mango bud mite, Aceria mangiferae Sayed (Eriophyidae) are serious pests of mango orchards in Egypt. The population dynamics of both species were studied on two mango cultivars (Zebda and Taimoor) under the natural climatic conditions of Assiut Governorate. Also, an annotated list was provided for the mite fauna inhabiting mango orchards during the present study and in previous Egyptian literature. The results showed that the population dynamics of both mite pests were affected by the ambient climatic conditions (temperature and relative humidity) and mango cultivar. The peak population of O. mangiferus was reported in October-November on leaves of both cultivars, while A. mangiferae was found regularly at almost all examined buds throughout the year. The checklist reported on 67 species belonging to 30 families and 52 genera. The predatory mites, Eucheyletia sp., Lepidocheyla gracilis Volgin (Cheyletidae) and Hemisarcoptes coccophagus Meyer (Hemisarcoptidae) were recorded for the first time in Egypt. Interestingly, the family Phytoseiidae represented the largest diversity of mites reported herein, with 10 species records. We anticipate that the results reported in the current study may encourage the establishment of control programs for these pests using phytoseiid mites.

The mango spider mite, Oligonychus mangiferus (Rahman and Sapra) (Tetranychidae) and the mango bud mite, Aceria mangiferae Sayed (Eriophyidae) are serious pests of mango orchards in Egypt. The population dynamics of both species were studied on two mango cultivars (Zebda and Taimoor) under the natural climatic conditions of Assiut Governorate. Also, an annotated list was provided for the mite fauna inhabiting mango orchards during the present study and in previous Egyptian literature. The results showed that the population dynamics of both mite pests were affected by the ambient climatic conditions (temperature and relative humidity) and mango cultivar. The peak population of O. mangiferus was reported in October-November on leaves of both cultivars, while A. mangiferae was found regularly at almost all examined buds throughout the year. The checklist reported on 67 species belonging to 30 families and 52 genera. The predatory mites, Eucheyletia sp., Lepidocheyla gracilis Volgin (Cheyletidae) and Hemisarcoptes coccophagus Meyer (Hemisarcoptidae) were recorded for the first time in Egypt. Interestingly, the family Phytoseiidae represented the largest diversity of mites reported herein, with 10 species records. We anticipate that the results reported in the current study may encourage the establishment of control programs for these pests using phytoseiid mites.