CONSTANCY OF STYLOSTOME FORM IN TWO WATER MITE SPECIES

1989 ◽  
Vol 121 (6) ◽  
pp. 439-443 ◽  
Author(s):  
Carmine A. Lanciani ◽  
Bruce P. Smith
Keyword(s):  
Host Defense ◽  
Host Species ◽  
Mosquito Species ◽  
Mite Species ◽  
Similar Species ◽  
Water Mites ◽  
Water Mite ◽  
Potential Value ◽  
Anopheles Quadrimaculatus ◽  
Constant Dark

AbstractRecent studies have suggested that the stylostome of parasitic larval water mites of the genus Arrenurus Dugès is a product of the mite, not the host. We tested this hypothesis by comparing stylostomes of the similar species Arrenurus novimarshallae Wilson and Arrenurus pseudotenuicollis Wilson formed in each of two mosquito species, Anopheles crucians Wiedemann and Anopheles quadrimaculatus Say: if the stylostome is produced by the mite, not the host, then stylostome form is likely to be constant in different host species parasitized by the mite.The stylostome of A. pseudotenuicollis is a short, broad, convoluted sac, and stylostomes within the two host species did not differ significantly. The stylostome of A. novimarshallae is a long, thin, convoluted tube, and although it was significantly smaller in A. quadrimaculatus than in A. crucians, its form remained constant. Dark pigment deposits around the stylostome’s attachment point and along the tube may represent host defense that reduces stylostome growth in A. quadrimaculatus. Laboratory-reared A. novimarshallae often die after a brief engorgement period on A. quadrimaculatus but not on A. crucians.Thus, the stylostome of these two mite species has a consistent form in each of two host species, an observation compatible with the hypothesis that the stylostome is a product of the mite. In addition, the ease of distinguishing these two mite species on the basis of stylostome morphology attests to the potential value of the stylostome as a taxonomic character.

Taxonomic amendments of Southeast Asian newt species of the genera Pachytriton, Paramesotriton and Laotriton (Amphibia, Urodela, Salamandridae) parasitized by water mites of the subgenus Lurchibates (Hydrachnidia, Hygrobatidae, Hygrobates)

Zootaxa ◽  
2020 ◽  
Vol 4768 (2) ◽  
pp. 297-300
Author(s):  
KANTO NISHIKAWA ◽  
TOM GOLDSCHMIDT ◽  
SHIMPEI F. HIRUTA ◽  
SATOSHI SHIMANO
Keyword(s):  
Host Species ◽  
Parasite Species ◽  
Mite Species ◽  
Southeast Asian ◽  
Water Mites ◽  
Water Mite ◽  
Species List ◽  
Taxonomic Changes ◽  
Initial Description ◽  
Host Parasite

Hygrobates salamandrarum Goldschmidt, Gerecke and Alberti, 2002 (Acari, Hydrachnidia, Hygrobatidae) is the first-known water mite parasitizing adult newts. After its description, three further species of newt-parasitizing mites were described and the subgenus Lurchibates Goldschmidt and Fu, 2011 was proposed for the group, now containing four newt-parasitizing mites. Until now, each water mite species parasitizes a different newt species (Table 1), suggesting possible mite-newt co-speciation. In order to test this hypothesis, we need an accurate taxonomy of both of the hosts and parasites. However, the taxonomy of those Asian newt genera known to be parasitized by Lurchibates mites has been substantially revised after the initial description of the H. salamandrarum. To account for these taxonomic changes, we here revise the host-parasite species list and amend the host species name as shown in Table 1. 

Parasitism of Odonata by Arrenurus (Acari: Hydrachnidia) larvae in the Lake Świdwie, nature reserve (NW Poland)

2013 ◽  
Vol 58 (4) ◽  
Author(s):  
Andrzej Zawal ◽  
Paweł Buczyński
Keyword(s):  
Host Species ◽  
Mite Species ◽  
The Body ◽  
Water Mites ◽  
Water Mite ◽  
New Localities ◽  
Size Growth ◽  
Body Sizes ◽  
First Time ◽  
Nw Poland

AbstractLarvae of a vast majority of water mite species are parasites of aquatic insects. Owing to this, they migrate to new localities, and are able to survive unfavourable environmental conditions. This also concerns species from subgenus Arrenurus s. str., parasites of dragonflies. The detailed analysis of this phenomenon, however, has only been possible in the last several years, since the key to the identification of larvae from genus Arrenurus Dug. was published. In 2010, the parasitism of Arrenurus s. str. larvae on dragonflies in the Lake Świdwie reserve (NW Poland) was analysed. Larvae of 9 species of water mites were recorded on 107 imagines of dragonflies from 8 species. The following were identified as hosts of water mites for the first time: Anax imperator, Libellula quadrimaculata, and Leucorrhinia caudalis. The highest prevalence occurred in the case of: Erythromma najas and Lestes dryas (100%), Coenagrion pulchellum (96.5%), and C. puella (80.0%). Coenagrion pulchellum was infested by 9 species of parasites, C. puella by 6, and Erythromma najas and Lestes dryas by three species. The highest number of host species occurred in the case of Arrenurus maculator (5); followed by A. cuspidator, A. batillifer cf., A. bicuspidator, and A. tetracyphus (3 each); A. papillator, A. tricuspidator, and A. bruzelii (2 each), and A. claviger (1). Differentiation of preferences of particular parasites towards various parts of the host body was observed, probably related to the coevolution of parasites and hosts, and competition between the host species. The body sizes of the parasites suggest that approximately 50% of body size growth of water mites from subgenus Arrenurus s. str. occurs at the stage of parasitic larva.

A description of two new species of water mites of the genus Torrenticola Piersig, 1896 (Acariformes: Hydrachnidia: Torrenticolidae) from the Krasnodar Kray, Russia

2013 ◽  
Vol 22 (2) ◽  
pp. 181-188
Author(s):  
P.V. Tuzovskij
Keyword(s):  
New Species ◽  
Mite Species ◽  
Running Waters ◽  
Water Mites ◽  
North Caucasus ◽  
Water Mite ◽  
The North ◽  
Two New Species

Two new water mite species, Torrenticola amplexella and T. krasnodarensis, from running waters of the North Caucasus (Krasnodar Kray) are described with illustrations.

scholarly journals Drifting Behaviour of Aquatic Mites and Regulating Ecological Parameters in Khankragad Stream, A Springfed Trubutary of Alaknanda River, Rudrarayag, Garhwal, Uttarakhand, India

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Shailza Negi ◽  
Pankaj Bahuguna ◽  
Anoop Dobriyal
Keyword(s):  
Water Quality ◽  
Environmental Changes ◽  
Sampling Period ◽  
Mite Species ◽  
Water Mites ◽  
Water Mite ◽  
Physico Chemical ◽  
Ecological Parameters ◽  
Drift Behavior ◽  
Set Up

Water mites are a large group of macroinvertebrates that are very vulnerable to contamination and environmental changes. As a result, they are often used to monitor water quality. Khankra gad stream, a third-order perennial spring-fed stream of the Alaknanda River in Uttarakhand, India, was studied to determine the drift behavior of water mites and water quality. Drift nets were set up for 24 hours in both spots of the Khankra stream where there was little or no human influence over a two-year sampling period (June 2018-20). Every four hours, the nets were changed out with new ones. Water mites signify a particular drift month and diel drift pattern. The majority of the drift mite species were present in considerably higher numbers in the daytime. During the two-year study period, a total of 2503 mite samples were collected from the Khankra stream, from which 204 water mite species drifted. The least number of Hydrachnidia (694) were collected from Spot-1, and the highest (1809) were collected from Spot-2, with 106 water mites drifting from Spot-1 and 134 mites drifting from Spot-2 during the study period. From Spot-2 maximum 25 mite species were collected and minimum 19 mite species were collected from Spot-1. For various mite species, the DBDI value ranged from 0.155 (July) to 0.204 (April) in Spot-1 and 0.134 (July) to 0.149 (February) in Spot-2. It was also observed that maximum water mite species were day-drifter. The physico-chemical parameters of the Khankra stream were also reported. The effect of ecological parameters on mite drift was investigated using Canonical correspondence analysis (CCA).

New water mites species (Acariformes: Hydrachnidia) from the Far East of Russia

Zootaxa ◽  
2009 ◽  
Vol 2241 (1) ◽  
pp. 1-21
Author(s):  
PETR V. TUZOVSKIJ ◽  
KSENIA A. SEMENCHENKO
Keyword(s):  
Far East ◽  
Mite Species ◽  
Far East Of Russia ◽  
Water Mites ◽  
Water Mite ◽  
The Far East ◽  
Standing Waters

Illustrated descriptions of five water mite species, Sperchon (Hispidosperchon) nevelskoii sp. n., Teutonia (Subteutonia) minor sp. n., Lebertia (Mixolebertia) sokolowi sp. n., Mixobates amurensis sp. n. and Feltria (Feltria) orientalis sp. n., from running and standing waters of the Far East of Russia are presented.

Water mites of the genus Sperchon Kramer (Acari: Hydrachnidia: Sperchontidae) from Turkey, with description of two new species

Zootaxa ◽  
2010 ◽  
Vol 2514 (1) ◽  
pp. 35 ◽  
Author(s):  
YUNUS ESEN ◽  
VLADIMIR PEŠIĆ ◽  
ORHAN ERMAN
Keyword(s):  
New Species ◽  
New Records ◽  
First Record ◽  
Mite Species ◽  
Published Data ◽  
Water Mites ◽  
Water Mite ◽  
Two New Species

A survey is given of the distribution of the water mite species of the genus Sperchon Kramer (Acari: Hydrachnidia: Sperchontidae) in Turkey, based on all published data and numerous new records. Sperchon (Hispidosperchon) oezkani and S. (Sperchon) ayyildizi are described as new species; Sperchon fundamentalis Bader & Sepasgozarian, 1980 is synonymized with S. glandulosus Koenike, 1886; the first record from Turkey is given for Sperchon (Hispidosperchon) tarnogradskii Sokolow, 1927.

scholarly journals Does parasitism mediate water mite biogeography?

2020 ◽  
Vol 25 (9) ◽  
pp. 1552-1560
Author(s):  
Hiromi Yagui ◽  
Antonio G. Valdecasas
Keyword(s):  
Geographic Distribution ◽  
Larval Stage ◽  
Extreme Values ◽  
Empirical Distribution ◽  
Distribution Patterns ◽  
Mite Species ◽  
Distribution Functions ◽  
Dispersal Ability ◽  
Water Mites ◽  
Water Mite

The biogeography of organisms, particularly those with complex lifestyles that can affect dispersal ability, has been a focus of study for many decades. Most Hydrachnidia, commonly known as water mites, have a parasitic larval stage during which dispersal is predominantly host-mediated, suggesting that these water mites may have a wider distribution than non-parasitic species. However, does this actually occur? To address this question, we compiled and compared the geographic distribution of water mite species that have a parasitic larval stage with those that have lost it. We performed a bootstrap resampling analysis to compare the empirical distribution functions derived from both the complete dataset and one excluding the extreme values at each distribution tail. The results show differing distribution patterns between water mites with and without parasitic larval stages. However, contrary to expectation, they show that a wider geographic distribution is observed for a greater proportion of the species with a non-parasitic larval stage, suggesting a relevant role for non-host-mediated mechanisms of dispersal in water mites.

scholarly journals Hidden biodiversity revealed by integrated morphology and genetic species delimitation of spring dwelling water mite species (Acari, Parasitengona: Hydrachnidia)

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Lucas Blattner ◽  
Reinhard Gerecke ◽  
Stefanie von Fumetti
Keyword(s):  
Species Identification ◽  
Molecular Species ◽  
Species Delimitation ◽  
Mite Species ◽  
Water Mites ◽  
Water Mite ◽  
Barcoding Gap ◽  
Molecular Species Identification ◽  
True Diversity ◽  
Genetic Species

Abstract Background Water mites are among the most diverse organisms inhabiting freshwater habitats and are considered as substantial part of the species communities in springs. As parasites, Hydrachnidia influence other invertebrates and play an important role in aquatic ecosystems. In Europe, 137 species are known to appear solely in or near springheads. New species are described frequently, especially with the help of molecular species identification and delimitation methods. The aim of this study was to verify the mainly morphology-based taxonomic knowledge of spring-inhabiting water mites of central Europe and to build a genetic species identification library. Methods We sampled 65 crenobiontic species across the central Alps and tested the suitability of mitochondrial (cox1) and nuclear (28S) markers for species delimitation and identification purposes. To investigate both markers, distance- and phylogeny-based approaches were applied. The presence of a barcoding gap was tested by using the automated barcoding gap discovery tool and intra- and interspecific genetic distances were investigated. Furthermore, we analyzed phylogenetic relationships between different taxonomic levels. Results A high degree of hidden diversity was observed. Seven taxa, morphologically identified as Bandakia concreta Thor, 1913, Hygrobates norvegicus (Thor, 1897), Ljania bipapillata Thor, 1898, Partnunia steinmanni Walter, 1906, Wandesia racovitzai Gledhill, 1970, Wandesia thori Schechtel, 1912 and Zschokkea oblonga Koenike, 1892, showed high intraspecific cox1 distances and each consisted of more than one phylogenetic clade. A clear intraspecific threshold between 5.6–6.0% K2P distance is suitable for species identification purposes. The monophyly of Hydrachnidia and the main superfamilies is evident with different species clearly separated into distinct clades. cox1 separates water mite species but is unsuitable for resolving higher taxonomic levels. Conclusions Water mite species richness in springs is higher than has been suggested based on morphological species identification alone and further research is needed to evaluate the true diversity. The standard molecular species identification marker cox1 can be used to identify species but should be complemented by a nuclear marker, e.g. 28S, to resolve taxonomic relationships. Our results contribute to the taxonomical knowledge on spring inhabiting Hydrachnida, which is indispensable for the development and implementation of modern environment assessment methods, e.g. metabarcoding, in spring ecology.

New water mites species of the genus Feltria Koenike (Acariformes, Feltriidae) from the Asian Russia

Zootaxa ◽  
2009 ◽  
Vol 2124 (1) ◽  
pp. 38-50
Author(s):  
PETR V. TUZOVSKIJ ◽  
KSENIA A. SEMENCHENKO
Keyword(s):  
Mite Species ◽  
Running Waters ◽  
Water Mites ◽  
Water Mite ◽  
New Subspecies

Illustrated descriptions of two water mite species, Feltria (Feltria) aculeata sp. n., Feltria (Feltria) ussuriensis sp. n., and one new subspecies, Feltria (Feltria) cornuta rossica ssp. n., from running waters of the Asian Russia are presented.

Studies on water mites of the family Hygrobatidae (Acari, Hydrachnidia) from Iran, I. The water mite genus Atractides Koch, with the description of five new species

Zootaxa ◽  
2004 ◽  
Vol 495 (1) ◽  
pp. 1 ◽  
Author(s):  
VLADIMIR PESIC ◽  
ALIREZA SABOORI ◽  
MAHDIEH ASADI ◽  
REZA VAFAEI
Keyword(s):  
New Species ◽  
New Records ◽  
Mite Species ◽  
Published Data ◽  
Water Mites ◽  
Water Mite ◽  
The Family ◽  
Mite Genus

This survey of the distribution of the water mite species (Acari: Hydrachnidia, Hygrobatidae) of the genus Atractides Koch in Iran is based on all published data so far and numerous new records. Five new species are described, viz. Atractides markaziensis Pesic, A. mossahebii Pesic, A. mirkopesici Pesic, A. gereckei Pesic, and A. nikooae Pesic; a first description is given for the male of Atractides cf. lunipes Lundblad, 1956; a redescription are given for Atractides baderi Schwoerbel & Sepasgozarian, 1976, Atractides nahavandii Schwoerbel & Sepasgozarian, 1976, and Atractides fluviatilis (Szalay, 1929); first records from Iran are given for Atractides acutirostris (Motas & C.Angelier, 1927), A. robustus (Sokolow, 1940) and A. inflatus (Walter, 1925).

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