The kangaroo tick, Amblyomma triguttatum triguttatum, is a major enzootic vector of Coxiella burnetti, the agent causing Q fever, in Australia. This is a widespread tick species previously reported from Queensland, New South Wales and Western Australia. There is also a small population, probably introduced, at the foot of Yorke Peninsula in South Australia. Our aim was to determine both the broad distribution of this tick on Yorke Peninsula and the pattern of dispersion between habitats. No free living A. t. triguttatum were found outside of Innes and Warrenben national parks, although records from humans are available from up to 180 km away. Within the parks, the tick is patchily spread in at least 8 of the 15 habitats searched but is most common in the disturbed areas in and around camping sites. We suggest that the behaviour of the tick's main host, the western grey kangaroo, Macropus fuliginosus, is responsible for its dispersion pattern.

Bdellodes japonicus (Ehara) was an efficient predator of Hypogastrura communis Folsom. It could prey on all stages of the prey, except the egg, but it preferred to prey on young nymphs. One adult female of B. japonicus could consume 7.9 individuals of adult female of H. communis in one day, and one adult male predator could consume 6.5 prey individuals. The equation of predation functional response of adult female predator to adult female prey was N_a = 0.9890N₀ (1 0.0579N₀), with the parameters a (0.9890), T_h (0.0585 day) and N_{a max} (17.09 individuals/day). The equation of predation functional response of adult male predator to adult female prey was N_a = 0.8357 N₀ (1 0.0618 N₀), with the parameters a (0.8537), T_h (0.0724 day) and N_{a max} (13.81 individuals/day).

The efficacy of commercially available garlic products viz., garlic oil, garlic powder and garlic oleoresin was evaluated against Tyrophagus putrescentiae Schrank and Suidasia nesbitti Hughes in stored wheat grains. All products reduced pest populations by 96 to 100% at a concentration of 0.2%. Garlic oil was the most potent against two mite species. It significantly reduced the population of T. putrescentiae (to average 33.24 mites) and that of S. nesbitti (to average 38.52 mites) in treated wheat grains. The population of T. putrescentiae in oleoresin and powder treated wheat grains was 39.37 and 50.31, respectively while that of S. nesbitti was 45.29 and 61.31, respectively as compared to untreated wheat grains (131 T. putrescentiae and 150 S. nesbitti mites). Eggs and larval stages were significantly (p<0.05) more susceptible to the garlic treatments than nymphs and adults. In garlic oil-treated grains (0.1% concentration), 10.3% and 11.8% of the eggs of T. putrescentiae and S. nesbitti, respectively, hatched, compared to 29.6 and 34% survival of these adults, at the same concentration. After an exposure of 45 days, garlic oil, oleoresin and powder provided 85.61, 64.56 and 79.85% protection against T. putrescentiae, as compared to 85.6, 63.62, and 78.96% against S. nesbitti in wheat grains.

Six larvae of the genus Ornithodoros were collected in Rio Lavayén, approximately 1km north of Santa Rita, San Pedro Department (24° 28′S, 64° 48′W), Jujuy Province, Argentina, on three species of bats: Molossops temminckii (Burmeister, 1854) (Molossidae), Myotis albescens (E. Geoffroy, 1806) (Vespertilionidae) and Histiotus laephotis Thomas, 1916 (Vespertilionidae). All six larvae were identified as belonging to the Ornithodoros hasei species group, whose members are common parasites of bats throughout the Neotropical Zoogeographic Region. This is the first record of the O. hasei species group in Argentina, and M. temminckii and H. laephotis are new hosts for this tick. Studies of the morphology, genetics and ecology of O. hasei across its vast range will be necessary in order to determine whether sibling species are present.

Two species, Sperchon indicus sp. nov. and S. garhwalensis sp. nov. (Lebertioidea: Sperchontidae), from hillstreams of the Garhwal Himalayas (Northern India) are described as new to science.

The morphology of the larval stages of one species (Arrenurus buccinator) is redescribed and two species (A. muelleri and A. stjoerdalensis) are described for the first time. The three species belong to the Megaluracarus subgenus. Particular attention is paid to the characters in common in the three species which they share with other Megaluracarus species and differences also from the species in the other subgenera. These are: shape of excretory pore plate, length of coxal plate median margins, the distances of C1-CpI and C4-CpIII and location of the IITi10 and IIITi10 setae. There are some characters which differ in the three species as well. These are: shape of dorsal plate, shape of excretory pore plate and presence or absence of secondary setae on the IFe3, IIFe3 and IIIFe3 setae.

The genus Andrevella (Acari: Erythraeidae) is recorded for the first time from Iran. Andrevella persiangulfia sp. nov., represented by a larva collected as free-living on soil on a Persian Gulf beach is described. It is the second species of this little known genus. A modified generic diagnosis of Andrevella is provided.

Hauptmannia kazimierae, Rudaemannia rudaensis, Leptus (L.) echinopus, L . (L.) beroni, L. (L.) mariae, L. (L.) josifovi and Podothrombium kordulae are new to the fauna of Switzerland. Abrolophus mirabelae sp. nov. belongs to the group of species having comb-like setae, Erythraeus (Erythraeus) berninensis sp. nov. and E. (E.) moeritzensis sp. nov. are described, both belong to the group of species having basifemoral, setal formula 3-3-3. Abrolophus pseudolongicollis, Hauptmannia brevicollis, Leptus (L.) slivovi, Podothrombium kordulae and Allothrombium fuliginosum are new to the fauna of Liechtenstein. Abrolophus mirabelae sp. nov., Hauptmannia stanislavae, H. silesiacus, Charletonia kaliksti, Erythraeus (E.) jowitae and Leptus (L.) josifovi are new to the fauna of France.

In 25 additional localities from Oriental Region 32 of the hitherto known species of ptyctimous mites (Acari, Oribatida) were collected. The new localities permit a more precise determination of the geographical distribution ranges of eleven species, usually extending their ranges, and prompted change in the zoogeographical element of some species. Additional morphological descriptions for three species, Oribotritia corporaali (Oudemans, 1926), Acrotritia divida (Mahunka, 1991), Notophthiracarus lienhardi Mahunka, 1996 are given.

Citations are presented for 14 publications authored or coauthored by the late Dr. Harry Hoogstraal, supplementing the bibliography of his work published in 1987.