We report on a collection of mites in the family Laelapidae associated with scarabaeid beetles in Iran. Five known species are recorded from Iran for the first time: Coleolaelaps asiaticus Karg, 1999, Hypoaspis integer Berlese, 1911, Hypoaspis pentodoni Costa, 1971, Hypoaspis phyllognathi Costa, 1971, and Hypoaspis terrestris (Leonardi, 1899). Four new species are described: Coleolaelaps costai sp. nov., Hypoaspis larvicolus sp. nov., Hypoaspis maryamae sp. nov., and Hypoaspis melolonthae sp. nov. The ecological relationship between these mites and their beetle hosts has not been analysed in detail, but they probably do not play a major role as biological control agents of pest scarabs.

This paper reports on nine species of mites of the family Laelapidae associated with insects and soil in Republic of Korea: Cosmolaelaps hortensis Ishikawa from Allomyrina dichotoma (Coleoptera: Scarabaeidae), and C. chianensis (Gu), C. hrdyi (Samšiňák), Cosmolaelaps sejongi sp. nov., Gymnolaelaps laevis (Michael), Holostaspis mooni sp. nov., Hypoaspis longicaudus sp. nov., Laelaspis mandibularis (Ewing) and Ololaelaps wangi Bai et. al. from soil. This is the first record of Gymnolaelaps, Holostaspis and Laelaspis from Republic of Korea. The new species are described and illustrated from adult females and additional morphological characters that complement the description of Ololaelaps wangi Bai et. al. are presented.

This paper reports on five species of mites of the genus Laelaspis associated with ants in Iran – Laelaspis astronomicus (Koch) from Tapinoma simrothi, Laelaspis equitans (Michael) from Messor sp. and Camponotus sp., Laelaspis kamalii Joharchi and Halliday sp. nov. from Tapinoma sp., Laelaspis pennatus Joharchi and Halliday sp. nov. from Tetramorium caespitum, and Laelaspis persicus Joharchi and Halliday sp. nov. from Pheidole pallidula. Laelaspis imitatus Reitblat has also been reported from Iran, in association with an unknown insect. A key to species of Laelaspis occurring in the Western Palaearctic Region is presented, with a summary of their host associations and biology.

This paper reports on four species of mites of the family Laelapidae associated with ants in Iran—Gymnolaelaps messor sp. nov. from Messor sp., Gymnolaelaps prestoni sp. nov. from Myrmica sp., Myrmozercon karajensis sp. nov. from Camponotus sp., and Pseudoparasitus missouriensis (Ewing, 1909) from Camponotus sp. This is the first record of Myrmozercon from Iran. The genera Gymnolaelaps and Pseudoparasitus are distinguished from each other and from the related genus Laelaspis by the shape, ornamentation and chaetotaxy of the genital shield, the form of the palp tarsal claw, and the presence or absence of pre-sternal plates.

Mites of the genus Myrmozercon (Mesostigmata: Laelapidae) are usually found in association with ants in the West Palaearctic and Australasian regions. Females and a male of a new species, Myrmozercon andongensis sp. nov., were collected clinging to Camponotus japonicus Mayr (Hymenoptera: Formicidae) in the Republic of Korea. This new species is the first record of Myrmozercon from the Eastern Palearctic region.http://www.zoobank.org/urn:lsid:zoobank.org:pub:3E2F42DA-8E62-4F95-BB0D-B5386DB1BDC6