Number of results to display per page
Search Results
12. Demodex agrarii sp. n. (Acari: Demodecidae) from cerumen and the sebaceous glands in the ears of the striped field mouse, Apodemus agrarius (Rodentia)
- Creator:
- Bukva, V.
- Format:
- Type:
- model:internalpart and TEXT
- Subject:
- Acari, Demodecidae, Demodex, taxonomy, habitat, rodents, and Apodemus agrarius
- Language:
- English
- Description:
- Demodex agrarii sp. n., an extremely long-bodied inhabitant of cerumen and the sebaceous glands in the ears of the striped field mice, Apodemus agrarius, taken in Slovakia, is described as a new species from all developmental stages.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
13. Demodex neomydis sp. n. (Acari: Demodecidae) from the hair follicles of the Mediterranean water shrew, Neomys anomalus (Insectivora: Soricidae)
- Creator:
- Bukva, V.
- Format:
- Type:
- model:internalpart and TEXT
- Subject:
- Acari, Demodecidae, Demodex, morphology, parasite, and insectivore
- Language:
- English
- Description:
- Demodex neomydis sp. n. from the Mediterranean water shrew, Neomys anomalus, is described as a new species in all developmental stages. This demodecid is classified as a member of the genus Demodex Owen, 1843, but shows several morphological characters described in Soricidex dimorphus Bukva, 1982 and which are absent or very infrequent in other known Demodex species, viz., in the adult stage, a pair of shelf-like lamellae on the dorsum of the podosoma, dorso-lateral extension of the podosoma over the basal part of the gnathosoma, multiple opisthosomal organ in the male, and podosomal position of the vulva in the female. Immature stages of D. neomydis have unusual inflated idiosoma and dorsad deflected gnathosoma. All developmental stages of D. neomydis were found in the lumen of the hair follicles on the host’s muzzle, causing no gross pathological response. On histological level, the main pathological change was distension of infested hair follicles by accumulations of up to a dozen mites, which appear to feed on the epithelial cells of the hair follicle walls.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
14. Demodex species (Acari: Demodecidae) parasitizing the brown rat, Rattus norvegicus (Rodentia): redescription of Demodex ratti and description of D. norvegicus sp. n. and D. ratticola sp. n.
- Creator:
- Bukva, V.
- Format:
- Type:
- model:internalpart and TEXT
- Subject:
- Acari, Demodecidae, Demodex, new species, rat, and rodents
- Language:
- English
- Description:
- Based on materials collected from wild populations of the brown rat, Rattus norvegicus in South Bohemia, Czech Republic, previously unknown male is described and female redescribed for Demodex ratti Hirst, 1917. All developmental stages are described for two new species, D. norvegicus sp. n. and D. ratticola sp. n. Also provided is a key to adults of four Demodex species presently known to parasitize Rattus norvegicus. Demodex ratti was recovered from the host’s back, eyelids, and external auditory meatus, D. norvegicus from the anal and genital areas, and D. ratticola from vicinity of the mouth and the tip of muzzle.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
15. DNA-barcoding contradicts morphology in quill mite species Torotrogla merulae and T. rubeculi (Prostigmata: Syringophilidae)
- Creator:
- Glowska, Eliza, Dragun-Damian, Anna, and Dabert, Jacek
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Acari, Torotrogla, COI, D2 28S rDNA, systematics, and phenotypic plasticity
- Language:
- English
- Description:
- Torotrogla merulae Skoracki, Dabert et Ehrnsberger, 2000 and T. rubeculi Skoracki, 2004 have been considered as distinct steno- and monoxenous quill mite species (Acari: Prostigmata: Syringophilidae) parasitizing the thrushes of the genus Turdus Linnaeus and the European robin Erithacus rubecula (Linnaeus), respectively. Morphological and molecular studies on the taxonomical status of these two species provided contradictory results. Well defined differences in morphology were not supported by substantial genetic distance in nucleotide sequences of the DNA barcode (mitochondrial cytochrome c oxidase subunit I, COI, and D2 domain of the nuclear 28S rRNA gene), by the topology of the phylogenetic trees (neighbor-joining, maximum parsimony, maximum likelihood) and the network analyses of the COI haplotype genealogy (median-joining, statistical parsimony) that reveal rubeculi populations nested within merulae haplotypes. Since detected differences between T. merulae and T. rubeculi populations (1.6-2.4% for COI and 0.1% for D2) are comparable to the intraspecific level observed in majority of currently recognized European Torotrogla species and are much lower than the interspecific distances observed in the genus, we postulate their conspecificity. Because main morphological distinctions concern the structures used for feeding, we hypothesize that they are the result of phenotypic plasticity evoked by specific and different environmental conditions prevailing on the host bodies (thickness of the feather quill wall).
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
16. Harmonia axyridis (Coleoptera: Coccinellidae) as a host of the parasitic fungus Hesperomyces virescens (Ascomycota: Laboulbeniales, Laboulbeniaceae): A case report and short review
- Creator:
- Ceryngier, Piotr and Twardowska, Kamila
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, entomologie, entomology, Ascomycota, Laboulbeniales, Hesperomyces virescens, Coleoptera, Coccinellidae, Harmonia axyridis, host-parasite association, novel host, range shift, host suitability, Acari, Podapolipidae, Coccipolipus hippodamiae, Nematoda, Allantonematidae, Parasitylenchus, 2, and 59
- Language:
- English
- Description:
- a1_Hesperomyces virescens is an ectoparasite of some Coccinellidae, which until the mid-1990s was relatively rarely only reported from warm regions in various parts of the world. Analysis of the host and distribution data of H. virescens recorded in the Western Palaearctic and North America reveals several trends in the occurrence and abundance of H. virescens: (1) it has recently been much more frequently recorded, (2) most of the recent records are for more northerly (colder) localities than the early records and (3) the recent records are mostly of a novel host, the invasive harlequin ladybird (Harmonia axyridis). While in North America H. virescens is almost exclusively found on H. axyridis, all European records of this association are very recent and still less numerous than records of Adalia bipunctata as a host. However, based on a relatively few published cases of the H. axyridis-H. virescens association in Europe and the case described in this paper, it is clear that the harlequin ladybird is currently the main host of this parasite. These changes in the abundance and geographical distribution of H. virescens are probably linked to some features of H. axyridis, such as its abundance, multivoltinism with overlapping generations, high level of promiscuity and overwintering in mass aggregations. The occurrence of these features in one species may make it especially suitable for H. virescens and other parasites that require close contact of host individuals for efficient transmission. Indeed, some of the data indicate that parasites other than H. virescens, like the podapolipid mite Coccipolipus hippodamiae and allantonematid nematodes of the genus Parasitylenchus may also heavily parasitize H. axyridis., a2_We hypothesize that the acquisition of H. axyridis as a host by H. virescens, C. hippodamiae and Parasitylenchus spp. may have further consequences for the abundance and distribution of these parasites, including the expansion of their ranges to other continents colonized by invasive populations of this ladybird and areas in Asia where H. axyridis is native., Piotr Ceryngier, Kamila Twardowska., and Seznam literatury
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
17. Identification key to Central European species of Trachytes (Acari: Uropodina) with redescriptions, ecology and distribution of Slovak species
- Creator:
- Mašán, Peter
- Type:
- article, model:article, and TEXT
- Subject:
- Acari, Uropodina, Trachytes, identification, redescription, ecological requirements, distribution, and zoogeography
- Language:
- English
- Description:
- A total of 23 uropodine species of the genus Trachytes (Acari, Mesostigmata) are reliably recorded to occur in Central Europe and included in identification keys for adults (23 spp.) and deutonymphal stages (9 spp.), respectively. For the first time, the diagnostic characters of deutonymphs of the species T. baloghi, T. minima, T. minimasimilis, T. mystacinus and T. splendida are figured. Ten species found in Slovakia are redescribed (T. aegrota, T. baloghi, T. hirschmanni, T. irenae, T. lamda, T. minima, T. minimasimilis, T. mystacinus, T. pauperior and T. splendida) and characterised by their external morphology, geographic distribution and ecological requirements in terms of habitat preference, affinity to merocoenoses and vertical distribution. The zoogeographic origin of Trachytes is analysed. Most species are found only in woodlands and have not been recorded in the distribution area of the Pannonian flora in Central Europe (except for T. aegrota and T. baloghi). Short taxonomic remarks are given for the species of dubious taxonomic status or whose occurrence is not reliably known.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
18. Mesostigmatid mites associated with the dung beetle Copris lunaris (Coleoptera: Scarabaeidae)
- Creator:
- Mašán, Peter and Halliday, Bruce
- Type:
- article, model:article, and TEXT
- Subject:
- Acari, mites, Mesostigmata, phoresy, Copris lunaris, and Slovakia
- Language:
- English
- Description:
- We examined the mesostigmatid mites found in four nest chambers of the dung beetle Copris lunaris (Scarabaeidae) in Slovakia. A total of 763 mites was found, belonging to ten species. The most frequent and abundant species were Pelethiphis opacus, Macrocheles copridis, Parasitus copridis, Uropoda copridis, Copriphis pterophilus, and Onchodellus hispani. The nests contained 19 dung balls, each enclosing a beetle pupa. Altogether 472 mites were found in these brood balls. A further 291 mites were found on the parental beetles in the nests. Three mite species were clearly more abundant in brood balls than on parental beetles, and these belonged to the life cycle stage that disperses by phoresy. The mites found in brood balls apparently disperse on the young adult beetles when they emerge. Only Parasitus copridis was more abundant on parental beetles than in brood balls. Different species of mites have developed different strategies for dispersal, as shown by their preferential attachment to either the parental or progeny generations of beetles.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
19. New feather mite species of the family Pteronyssidae (Astigmata: Analgoidea) from South African passerines (Aves: Passeriformes)
- Creator:
- Mironov, Sergei V. and Kopij, Grzegorz
- Format:
- Type:
- model:internalpart and TEXT
- Subject:
- Acari, Analgoidea, Avenzoariidae, Pteronyssinae, new species, Passeriformes, and South Africa
- Language:
- English
- Description:
- Four new species of feather mites belonging to three different genera of the family Pteronyssidae are described from passerine birds of South Africa: Pteroherpus africanus sp, n, from the garden bulbul Pycnonotus barbatus (Desfontaines) (Pycnonotidae), Pteroherpus cysticolae sp. n. from the wing-snapped cisticola Cisticola ayresii Hartlaub (Sylviidae), Pteronyssoides promeropis sp. n. from the Gurney’s sugarbird Promerops gurneyi Verreaux (Promeropidae), and Sturnotrogus creatophorae sp. n. from the wattled starling Creatophora cinerea Menschen (Sturnidae). A brief review of recent publications on the taxonomy of the family Pteronyssidae is given.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
20. New genus and three new species of quill mites (Acari: Syringophilidae: Picobiinae) parasitising puffbirds (Aves: Piciformes)
- Creator:
- Skoracki, Maciej, Scibek, Katarzyna, and Sikora, Bozena
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Acari, Pseudopicobia, new genus, ectoparasites, birds, and Bucconidae
- Language:
- English
- Description:
- Three new species, belonging to the newly proposed genus Pseudopicobia gen. n., inhabiting body quill feathers of puffbirds (Piciformes: Bucconidae), are described: P. nonnula sp. n. from Nonnula frontalis (Sclater) in Colombia, P. malacoptila sp. n. from Malacoptila panamensis Lafresnaye in Colombia and P. hapaloptila sp. n. from Hapaloptila castanea (Verreaux) in Ecuador. The new genus differs from morphologically similar genus Picobia Heller, 1878 by the absence of the genital setae, absence of the genital lobes, solenidia φI represented by microsetae, and by the presence of setiform solenidia σI. Syringophilid mites are recorded from birds of this family for the first time.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
- « Previous
- Next »
- 1
- 2
- 3
- 4