The effectiveness of various trap intervals (two, four, six, eight, sixteen and twenty-four hours) for collecting ticks was compared for different times of the day throughout a one-year period. A total of 9,508 ticks [Amblyomma americanum (L.), Amblyomma maculatum Koch, Dermacentor variabilis (Say), Ixodes scapularisSay; (Acari: Ixodidae)] were collected on carbon dioxide baited traps. The eight-hour (8:00–16:00 h) trapping interval caught the most ticks. Amblyomma americanum nymphs and adults as well as I. scapularis nymphs were most common in May, while I. scapularis adults were collected most often during the winter months. PeakA. americanum activity shifted from midday to morning during the warmest months of the year.

Data are presented for 103 tick specimens collected from four coyotes in two provinces of Panama. Six tick species were recovered: Amblyomma cajennense s.l., Amblyomma oblongoguttatum, Amblyomma ovale, Amblyomma sp. near parvum, Haemaphysalis juxtakochi, and Ornithodoros sp. near puertoricensis. These collections constitute a preliminary checklist of ticks from the southern coyote population.

Phytoseiulus persimilis Athias-Henriot is a commercialized predatory mite that is commonly used in ornamental greenhouses to control spider mites. In this research, prey stage preference of this predator on rose leaf disc was studied in laboratory conditions (25 ± 1°C, 75 ± 5% RH and 16L: 8D hour photoperiod). The preference index for each predator stage was calculated by Manly's β index. Comparison of the mean preference index for protonymphs, deutonymphs and females of P. persimilis showed that all stages of this predator showed a significant preference for eggs of T. urticae. The predator protonymphs and deutonymphs preferred prey eggs, followed by prey larvae and protonymphs, and the female predators preferred prey eggs, followed by prey protonymphs and deutonymphs.

In this study, the developmental duration and life table of Amblyseius (Typhlodromips) swirskii and Amblyseius eharai with the prey Panonychus citri were studied at 25±1°C. The results showed that the developmental duration of the larval stage and a whole generation of A. swirskii were significantly shorter than those of A. eharai, but no significant differences in developmental duration were observed in other stages. In addition, the larva of A. swirskii could develop into a protonymph without any prey, but prey was necessary for larval development of A. eharai. The fecundity of the adult female of A. eharai was significantly higher than that of A. swirskii. The net reproductive rate (R_o), intrinsic rate of increase (r_m) and the finite rate of increase (λ) of A. eharai were higher than those of A. swirskii. The results indicated that A. eharai might be a better competitor compared with A. swirskii according to the parameters of life table.

A new species of blattisociid mite, Cheiroseius manouchehrii sp. nov. is described and illustrated based on materials collected from soil mixed with the hairy roots of a willow tree near the pool of a stream in Agareh village, Damghan, Iran.

A new species of Achipteriidae, Plakoribates asiaticus sp. nov., is described from ferns and club-mosses on stones of Southern Vietnam. It is the first member of this genus recorded from Vietnam. The new species can be distinguished from all known species of Plakoribates by the combination of characters: structure of rostrum (with medial indentation and three lateral small teeth on each side), morphology of lamellae (broad, with four or five teeth), body surface (notogaster micropunctate; ventral plate striate; polygonal ornamentation between genital and anal plates present), number of notogastral pores (three pairs developed), localizations of some lyrifissures (ia located between la and lm; im located anterolaterally to h₃; ip located laterally to h₁). An identification key to the known species of Plakoribates is given.

Two new oribatid mite species, Machadobelba longiciliata sp. nov. (Machadobelbidae) and Campachipteria brevisetosa sp. nov. (Achipteriidae), are described from upper organic soil layer in mostly undisturbed rain forest of Podocarpus National Park, Ecuador. Machadobelba longiciliata sp. nov. is most similar to Machadobelba descombesi Mahunka, however it differs from the latter by the structures of sensilli and median notogastral tubercles, length of notogastral setae and presence of porose areas in anogenital region. Campachipteria brevisetosa sp. nov. is most similar to Campachipteria sibirica (Krivolutsky et Grishina), however it differs from the latter by the structures of sensilli and lamellar setae, and length of process of pteromorphs. The genus Campachipteria is recorded for the first time in Ecuador.

The genus Oribotritia (Acari: Oribatida: Oribotritiidae) was represented in New Zealand by six species prior to this work. In this paper, three species of Oribotritia from New Zealand are described, including two new species, Oribotritia mangamuka sp. nov. and Oribotritia bilaminae sp. nov., and a known species with some variation. A key to all known species of Oribotritia in New Zealand is also provided.

Charletonia terianae sp. nov. (Acari: Trombidiformes: Prostigmata) is described and illustrated from Cheliferidae (Pseudoscorpionida), Phalangiidae (Opiliones) and Araneae (family unknown) which live under bark of trees in the grounds of the Faculty of Agriculture, University of Tehran, Karaj, Alborz province, Iran. Some morphological data for C. stekolnikovi Hakimitabar & Saboori, 2011 are corrected.

Four new eriophyoid mite species (Acari: Eriophyoidea: Diptilomiopdiae) from Hainan Province, China are described and illustrated. They are Diptilomiopus diaoluoicus sp. nov. on Eurya hainanensis (Kobuski) H. T. Chang (Theaceae), Diptilomiopus engelhardter sp. nov. on Engelhardtia roxburghiana Wall. (Juglandaceae), Neorhynacus altingus sp. nov. on Altingia obovata Merr. et Chun (Hamamelidaceae); Konola pingis sp. nov. on Machilus pingii Cheng (Lauraceae). All the new species described herein are vagrants on the host plant.

A new species of Eupalopsellus (Acari: Trombidiformes: Eupalopsellidae), namely E. kermaniensis sp. nov. ex Artemisia sp. L. (Asteraceae) from Kerman province, Iran, is described. A key to the known species of the world is provided.