The occurrence of Nematalycidae (Acari, Prostigmata) in Central Amazonia with a description of a new genus and species

Schubart, Herbert O. R.

doi:10.1590/1809-43921973033053

Cited by 10 publications

(4 citation statements)

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“…The Nematalycidae (Acariformes: Endeostigmata) is a family of vermiform mites (Fig. 1) that includes five monospecific genera that inhabit mineral soil or sand (Strenzke, 1954;Cunliffe, 1956;Coineau et al, 1967;Schubart, 1973;Bolton et al, 2014). A minute mouth opening and a very narrow esophagus suggests that this family feeds exclusively on fluids (; Haupt and Coineau, 1999;pers.…”

Section: Introductionmentioning

confidence: 99%

A novel fluid-feeding mechanism for microbivory in the Acariformes (Arachnida: Acari)

Bolton

Bauchan

Ochoa

et al. 2015

Arthropod Structure & Development

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Low temperature scanning electron microscopy (LT-SEM) has revealed anatomical details suggesting that Osperalycus and Gordialycus (Acariformes: Nematalycidae) have an unusual feeding apparatus that is hypothesized to be specialized for feeding on the fluid contents of small microorganisms (diameter<5 μm). Both mite genera have a feeding strategy that appears to involve picking up small microorganisms and placing them onto the subcapitulum for puncturing. However, they have slightly different variants of the same basic rupturing mechanism. Whereas Gordialycus has evolved expansive and convergent rutella to hold the microorganisms in place while pushing chelicerae into them, Osperalycus has evolved a pouch into which a microorganism is inserted. The rutella reinforce this pouch while the chelicerae break up the microorganism. Both types of mouthpart apparatus seem to be adapted to minimize waste, an appropriate specialization given the organically impoverished habitats in which these mites live.

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Section: Introductionmentioning

confidence: 99%

A novel fluid-feeding mechanism for microbivory in the Acariformes (Arachnida: Acari)

Bolton

Bauchan

Ochoa

et al. 2015

Arthropod Structure & Development

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“…The vast majority of mite setae are either unbranched or have more than three branches (hyper-furcating). But in Nematalycidae, almost all setae are unbranched, bifurcating or trifurcating [ 54 , 55 , 56 , 57 , 58 ]. If bifurcated setae are the ancestral condition in Eriophyoidea, hypo-furcating setae (herein defined as setae with two or three branches) represent another potentially important synapomorphy that unites Eriophyoidea with some or all Nematalycidae.…”

Section: Discussionmentioning

confidence: 99%

“…These setae are referred to as semi-bifurcating in the description of the nematalycid, Osperalycus tenerphagus Bolton and Klompen [ 57 ]. The exact same type of setae is especially abundant on the leg segments of the nematalycid, Psammolycus delamarei Schubart [ 58 ].…”

Section: Discussionmentioning

confidence: 99%

Atypically Shaped Setae in Gall Mites (Acariformes, Eriophyoidea) and Mitogenomics of the Genus Leipothrix Keifer (Eriophyidae)

Chetverikov,

Bolton,

Craemer

et al. 2023

Insects

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The setae in Eriophyoidea are filiform, slightly bent and thickened near the base. Confocal microscopy indicates that their proximal and distal parts differ in light reflection and autofluorescence. Approximately 50 genera have atypically shaped setae: bifurcated, angled or swollen. These modifications are known in the basal part of prosomal setae u′, ft′, ft″, d, v, bv, ve, sc and caudal setae h2. We assessed the distribution of atypically shaped setae in Eriophyoidea and showed that they are scattered in different phylogenetic lineages. We hypothesized that the ancestral setae of eriophyoid mites were bifurcated before later simplifying into filiform setae. We also proposed that hypo-furcating setae are a synapomorphy that unites Eriophyoidea with Nematalycidae. We analyzed four new mitochondrial genomes of Leipothrix, the largest genus with bifurcated d, and showed that it is monophyletic and has a unique mitochondrial gene order with translocated trnK. We exclude Cereusacarus juniperensis n. comb. Xue and Yin, 2020 from Leipothrix and transfer five Epitrimerus spp. to Leipothrix: L. aegopodii (Liro 1941) n. comb., L. femoralis (Liro 1941) n. comb., L. geranii (Liro 1941) n. comb., L. ranunculi (Liro 1941) n. comb., and L. triquetra (Meyer 1990) n. comb.

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“…The Nematalycidae is an unusual and cosmopolitan family of vermiform mites that inhabit mineral regolith (sands and mineral soil horizons). So far only five genera (all monospecific) have been described (Bolton et al 2014 ; Coineau et al 1967 ; Cunliffe 1956 ; Schubart 1973 ; Strenzke 1954 ). Despite the small number of species in this family, they contain a large amount of morphological variation with respect to several features, including the mouthparts (Bolton et al submitted) and relative body length (Fig.…”

Section: Introductionmentioning

confidence: 99%

The role of the integument with respect to different modes of locomotion in the Nematalycidae (Endeostigmata)

Bolton

Bauchan

Ochoa³

et al. 2014

Exp Appl Acarol

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Previous research on the locomotion of the Nematalycidae has only been undertaken on Gordialycus, which is by far the most elongated genus of the family. Gordialycus is dependent on an unusual form of peristalsis to move around. It was not known whether the genera of Nematalycidae with shorter bodies also used this mode of locomotion. Our videographic recordings of Osperalycus did not reveal peristalsis. Instead, this mite appears to move around the mineral regolith via the expansion and constriction of the metapodosomal and genital region, allowing greater versatility in the way that the annular regions contract and extend. This type of locomotion would enable relatively short bodied nematalycids to anchor themselves into secure positions before extending their anterior regions through tight spaces. Low-temperature scanning electron micrographs show that the short bodied genera have integumental features that appear to be associated with this mode of locomotion. Peristalsis is almost certainly a more derived form of locomotion that is an adaptation to the unusually long body form of Gordialycus.Electronic supplementary materialThe online version of this article (doi:10.1007/s10493-014-9857-0) contains supplementary material, which is available to authorized users.

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The occurrence of Nematalycidae (Acari, Prostigmata) in Central Amazonia with a description of a new genus and species

Abstract: A new genus and species of Nematalycidae (Acari) found near Manaus, Brazil, are described in this paper. This is the first find of the family in the Neotropical Region. A new generic name is proposed for the species described by Cunliffe in 1956.

Cited by 10 publications

References 0 publications

A novel fluid-feeding mechanism for microbivory in the Acariformes (Arachnida: Acari)

A novel fluid-feeding mechanism for microbivory in the Acariformes (Arachnida: Acari)

Atypically Shaped Setae in Gall Mites (Acariformes, Eriophyoidea) and Mitogenomics of the Genus Leipothrix Keifer (Eriophyidae)

The role of the integument with respect to different modes of locomotion in the Nematalycidae (Endeostigmata)

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