吉林省长岭草原不同生境土壤中气门螨类调查（蜱螨亚纲）

在长岭草原共采到中气门螨9科15属20种。优势种为胸前下盾螨Hypoaspis praesternalis Willmann,1949,螨数和分布生境数最多,常见种有10种,稀有种为9种。在调查的20个生境中,羊草杂类草生境螨数和螨种数最多,碱茅生境没有采到螨,其余18个生境都采到不同数量的螨。     

革螨新同物异名(蜱螨亚纲:中气门亚目)

The present paper reports new synonyms ofgamasid mites （2 genera and 28 species）.     

Global diversity of oribatids (Oribatida: Acari: Arachnida)

Oribatid mites are primarily terrestrial. Only about 90 species (less than 1% of all known oribatid species) from 10 genera are truly aquatic, with reproduction and all stages of their life cycle living in freshwater. Adaptation to aquatic conditions evolved independently in different taxa. However, many terrestrial species can also be found in aquatic habitats, either as chance stragglers from the surrounding habitats, or from periodic or unpredictable floodings, where they can survive for long periods. In spite of their low species richness aquatic oribatids can be very abundant in different freshwater habitats as in lentic (pools, lakes, water-filled microhabitats) or flowing waters (springs, rivers, streams), mainly on submerged plants. The heavily sclerotized exoskeletons of several species enables subfossil or fossil preservation in lakes or bog sediments. Guest editors: E. V. Balian, C. Lévêque, H. Segers & K. Martens Freshwater Animal Diversity Assessment     

裸浆螨属1新种记述（蜱螨亚纲：小真古螨科）

记述裸浆螨属ＳａｎｉｏｓｕｌｕｓＳｕｍｍｅｒ１９６０１新种;格氏裸浆螨Ｓａｎｉｏｓｕｌｕｓｇｅｒｓｏｎｉｓｐ．ｎｏｖ．     

新颚螨属1新种记述（蜱螨亚纲：小黑螨科）

记述新颚螨属ＮｅｏｇｎａｔｈｕｓＷｉｌｌｍａｎｎ１９５２－新种：介六新颚螨,新种Ｎｅｏｇｎａｔｈｕｓｊｉｄｌｉｕｉｓｐ．ｎｏｖ。     

Moulting and morphogenesis of sensilla in a prostigmate mite (Acari,Actinotrichida, Actinedida: Caeculidae)

Summary In the prostigmate mite Microcaeculus steineri delamarei moulting and morphogenesis of mechanoreceptive sensilla were studied by electron microscopy and compared to corresponding sensilla of other arthropods. Dendritic contact with the cuticular parts of old sensilla breaks down during apolysis. Two groups of cells are engaged in the formation of new sensilla: 1) several trichogen and two tormogen cells in a semicircular arrangement, and 2) two sheath cells surrounding the mechanoreceptive dendrites. Cells ensheathing the dendrites do not play any part in the formation of bristles. These observations differ from those on insect sensilla during moulting.In memory of Prof. Dr. Werner Ulrich     

Origin of the inland Acari of Continental Antarctica, with particular reference to Dronning Maud Land

The extant Acari occurring on the inland mountain ranges and nunataks of Continental Antarctica comprise only pre-Pleistocene endemic Prostigmata and Cryptostigmata of which the Prostigmata are the probable earlier colonists. The inland acarofauna of Continental Antarctica has a different origin from that of Maritime Antarctica, though both are the relict descendants of a Mesozoic acarofauna, which has been radically depleted by one or more Mesozoic and/or Cenozoic glacial events.     

The expanding alloscutal cuticle in adults of the argasid tick Argas (Persicargas) robertsi (Acari: Ixodoidea)

The extensible cuticle of Argas (P.) robertsi is tuberculate and deeply folded when the tick is unfed but expands rapidly during feeding. During this expansion the epicuticle becomes less convoluted and the underlying endocuticle stretches but there is no significant alteration in thickness. However, the stretched cuticle has taken on a more open structure. Increase in surface area is restricted to a blister-like expansion because of an inextensible lateral suture which separates the dorsal and ventral surfaces. The cuticle is very hydrophobic, contains 9.9% chitin in the female and 8.9% in the male and the cuticular proteins are largely basic. The cuticle has similar properties to that of the ixodid tick Boophilus microplus but differs from it in fine structure. These differences appear to be related to the time sequence of cuticle synthesis and deposition and to the cycle of expansion and contraction which takes place each time A. (P.) robertsi feeds.     

根螨属螨类进境风险分析

通过对根螨进境风险进行定性分析,初步认为花叶芋根螨(Rhizoglyphus caladii)、小根螨(R.minutus)、长毛根螨(R.setosus)和单列根螨(R.singularis)为检疫性有害生物;刺足根螨(R.echinopus)和罗宾根螨(R.robini)为限定的非检疫性有害生物。     

Marine mites (Halacaroidea: Acari): a geographical and ecological survey

Halacarid mites (Acari), with almost 700 species described, inhabit marine and freshwater habitats. The majority of genera are recorded from at least two ocean basins or continents. There is no evidence of endemic genera, in either littoral faunal provinces or in deep-sea regions. Copidognathus, a genus comprising 1/4 of all species described, is found in almost all geographic regions, depths and habitats. Other genera dominate or are restricted to cold waters, to warm waters or to distinct habitats.Corresponding habitats on either side of the boreal Atlantic Ocean harbour congeneric, identical, sibling or morphologically similar species. The fauna in the western Atlantic is less diverse than that in the eastern. Amphiatlantics are restricted to certain genera. Transatlantic distribution is independent of the niche inhabited.Of the marine halacarid species recorded from the boreal western Atlantic, 41% are amphiatlantics, while only one species is recorded from both the Caribbean and the Mediterranean. The Caribbean and the Mediterranean faunas are dominated by genera in which amphiatlantics are unknown.Most of the Black Sea species of the genus Halacarellus also occur in the Baltic, North Sea or North Atlantic, whereas the Copidognathus fauna of the Black Sea is similar to that of the Mediterranean.Halacarids are thought to be an ancient taxon, with most genera probably having been present since the Mesozoic and with several species having an age of at least 50 million years. Evidence for their antiquity is found in the distributional pattern of marine and limnic genera and species, in the lack of endemic genera despite low fecundity and lack of dispersal stages, and in the fact that amphiatlantics are restricted to certain genera without relationships to the niches inhabited.     

宁夏中气门螨调查报告（蜱螨亚纲）（2）

本文是《宁夏中气门螨调查报告》第2报。文中记载中气门螨10科42种,其中宁夏新记录8种。     

新革螨属2新种记述（蜱螨亚纲：中气门目：寄螨科）

记述新革螨属2新种：双锯新革螨Neogamasus biserrendogynii sp．nov．和双瓣新革螨Neogamasus bivalvendogynii sp．nov．。     

簇毛巨螯螨雄螨描述（蜱螨亚纲：中气门目：巨螯螨科）

描述簇毛巨螯螨Maerocheles penicilliger（Berlese,1904）雄螨。     

New Uropodina species (Acari: Mesostigmata) and records from Kenya

Chelonuropoda africana sp. n. is described with original drawings and scanning micrographs. New records of two other Uropodina species, Neodiscopoma crenulatum Marais et Theron, 1986 and Rotundabaloghia feherdii Kontschán, 2004 from Kenya are given.     

Fine structure of the gnathosoma of Archegozetes longisetus Aoki (Acari: Oribatida,Trhypochthoniidae)

Oribatida are one of the main groups of Acari comprising mostly important decomposers in soils. Most species are particle feeders, an exceptional mode of nutrition in Arachnida. Hence, their feeding organs, the gnathosoma, are of special functional interest. We studied nearly all components using scanning and transmission electron microscopies as well as reconstructions based on synchrotron X‐ray microtomography from the model oribatid Archegozetes longisetosus. Besides cuticular structures, we describe the full set of muscles and confirm the presence of a trochanter remnant at the base of the chelicera. Setae on the prodorsum and the anterior and posterior infracapitular setae are mechanoreceptors innervated by two dendrites ending with tubular bodies. Dendrites of adoral setae, anterior setae of the chelicerae, and the supracoxal setae show neither obvious tubular bodies nor wall or terminal pores. Thus their function remains obscure. For the first time, a muscular proprioreceptor has been found in Arachnida. It likely monitors the actions of muscles moving the movable digit of the chelicera. Glandular structures within and associated with the gnathosoma are described. Dermal glands represented by secretory porose areas are found within the infracapitulum. More complex associated glands comprise the podocephalic glands and the infracapitular glands, the ducts of which were traced completely for the first time. The components described are mostly fundamental for the gnathosoma of Actinotrichida (Acariformes), one of the two lineages of Acari, to which Oribatida belong. The gnathosoma is generally considered the most relevant putative synapomorphy of Acari. Since the monophyly of Acari has become more and more questionable during the last decades, a thorough reinvestigation of this body part is necessary for a comprehensive understanding of acarine and even arachnid phylogeny and evolution. This article provides a starting point of such a re‐evaluation of the gnathosoma. J. Morphol. 2011. © 2011 Wiley‐Liss, Inc.     

崔氏美绥螨雄螨描述(蜱螨亚纲:革螨股:美绥螨科)

描述崔氏美绥螨Ameroseius cuiqishengi Ma,1995雄螨。     

Mating and spermatophore morphology of water mites (Acari: Parasitengona)

In this paper I synthesize original and published studies of sperm transfer behaviour of 23 genera of water mites from 15 families. The morphology of spermatophores from 16 genera (12 families) is described. Behaviour and/or spermatophores are described for the first time for the following species: Hydrachna magniscutata Marshall, Hydrachna hesperia Lundblad, Hydrachna sp. nr. leegei Koenike, Limnochares americana Lundblad, Limnesia undulata (Müller), Neumania distincta Marshall, Unionicola (three species in the U. crassipes-complex), Thyas slolli Koenike, Lebertia annae Habeeb, Lebertia sp., Piona sp. nr. debilis (Wolcott), Tiphys vernalis (Habeeb), Arrenurus dentipetiolatus Marshall, Arrenurus marshalli Piersig and Arrenurus birgei Marshall. On the basis of proximity of male and female during sperm transfer, I divide water mites into four groups: complete dissociation, involving no physical or chemical contact between the sexes (nine genera); incomplete dissociation, requiring distance-or contact-chemoreception but not involving pairing behaviour (five genera); pairing with indirect transfer, involving pairing behaviour with females controlling sperm uptake (three genera); pairing with direct transfer (=copulation), involving pairing behaviour and male placement of sperm in the receiving structure of the female (12 genera). Four genera have representative species in more than one category of sperm transfer. Factors possibly leading to the diversity of water mite mating behaviour include an evolutionarily flexible mode of sperm transfer in the ancestral water mite, and the development of planktonic and endoparasitic habits in many mites. Morphological features of spermatophores that improve physical stability, probability of females taking up sperm and resistance against osmotic stress are discussed. Finally, I present implications of mating behaviour and spermatophore morphology for phylogenetic relationships within water mites and between this group and terrestrial Acari.     

Cuticle Ultrastructure of Criconemella curvata and Criconemella sphaerocephala (Nemata: Criconematidae)

Cuticle ultrastructure of Criconemella curvata and C. sphaerocephala females is presented; males were available only in the second species. Ultrathin sections revealed three major zones: cortical, median, and basal. The cortical zone in the females consists of an external and internal layer. In C. curvata the external layer is trilaminate and at each annule it is covered by a multilayered cap. In C. sphaerocephala the trilaminate layer is lacking and the external cortical layer includes an osmophilic coating. In both species the internal layer consists of alternate striated and unstriated sublayers. The median zone is fibrous with a central lacuna and the zone is interrupted between the annules. The basal zone of the cuticle is striated and narrower between each annule. The cuticle of the C. sphaerocephala male is typical of Tylenchida, except under both lateral fields; the striated layer becomes forked at the first incisure and the innermost two prongs of the fork overlap each other, resulting in a continuous striated band.     

The occurrence of Limnohalacarus (Acari: Halacaridae) in Lake No,White Nile

Limnohalacarus africanus and L. fontinalis are recorded from Lake No. These are respectively the third and second records of these species, and represent considerable extensions of their known ranges.