Twelve larvae of unidentified species of Odontacarus Ewing, 1929 (Acari: Leeuwenhoekiidae) were found parasitising an adult male whip spider Charinus brasilianus Weygoldt (Charinidae) in Santa Teresa, mountainous region of Espírito Santo state, southeastern Brazil. These larvae occurred in the intersegmental membrane of prosoma and legs. This is the first report of ectoparasitic mites infecting a charinid whip spider and the first record of leeuwenhoekiid mites parasitising an invertebrate host. We suggest that future studies are essential to understand the reasons why these events of parasitism are so rare in the order Amblypygi.
The formerly monotypic genus Blissia is given a wider definition, in order to include a second new species, Blissia robusta, from the Ogilvie Mts, Yukon Territory, northwestern Canada. Some additional characters separating the genera Blissia and Tetracanthella are described.
Bacciger israelensis Fischthal, 1980 (Trematoda: Fellodistomidae) was recorded from Boops boops (Perciformes: Sparidae) in Bulgarian Black Sea coastal waters for the first time. Re-examination of the morphology of B. israelensis showed some new details: Laurer’s canal opens dorsally a short distance anterior to the excretory pore; seminal receptacle situated posterior to ventral sucker and ventral to ovary; ovary composed of three nearly spherical but not separated lobes forming apexes of isosceles triangle; tegumental spines covering body including entire surface of ventral sucker and distal half of upper part of oral sucker.
Arostrilepis beringiensis (Kontrimavichus et Smirnova, 1991) is redescribed on the basis of its type specimens from Lemmus trimucronatus (Richardson) and material from the collections of the Institute of Systematics and Ecology of Animals, Novosibirsk from the lemmings Myopus schisticolor (Lilljeborg) and Lemmus sibiricus (Kerr) from the Asian part of Russia. Specimens previously identified as Arostrilepis horrida (Linstow, 1901) from voles are revised and newly collected materials are addressed. Two new species of the genus Arostrilepis Mas-Coma et Tenora, 1997, A. intermedia sp. n. from red-backed voles (Myodes Pallas) from the Asian part of Russia and A. janickii sp. n. from Europe, are described. These species are clearly distinguished from congeners by form and size of the cirrus and its armature as well as the type of arrangement for the testes, position of the cirrus-sac with regard to poral ventral osmoregulatory canals, and host specificity.