Rostral Setae Research Articles

Additions to the oppioid oribatid mite fauna of Brazil, with description of two new species (Acari: Oribatida: Oppioidea)

AbstractAn annotated checklist of identified Brazilian Oppioidea is provided; it includes 14 species, eight genera and two families. Five species - Teratoppia (Teratoppiella) brevipectinata, Ramusella (Ramusella) curtipilus, Striatoppia opuntiseta, Moritzoppia (Moritzoppia) keilbachi and Multioppia (Hammeroppia) gracilis - are recorded for the first time in Brazil; of these, M. (Moritzoppia) keilbachi and M. (Hammeroppia) gracilis are recorded from the Neotropical region for the first time. Two new species, Teratoppia (Teratoppia) parareducta sp. n. and Brachioppia insolita sp. n., are described and illustrated on the basis of adult specimens. Teratoppia (T.) parareducta sp. n. is most similar to T. (T.) reducta Balogh & Mahunka, 1969, but it differs from the latter by the position of adanal lyrifissures, length of rostral setae and lamellar setae and morphology and length of notogastral setae. Brachioppia insolita sp. n. differs from other species of the genus by the position of adanal lyrifissures and shape of anterior notogastral margin.

New record of the family Nematalycidae (Acari: Sarcoptiformes: Endeostigmata) for the fauna of Iran

Diagnosis A highly elongate idiosoma (in adults ≥ 6 times width when fully extended), lined with annuli, with the soft and flexible integument between successive annuli; a much greater distance between legs II and III relative to legs I and II; the genitalia positioned directly behind legs IV and far from the anal opening; a long posterior region behind the genitalia; prodorsum without trichobothria and naso, with fewer than four pairs of setae; the rostral seta is unpaired if present (Bolton et al. 2014, 2015). The Nematalycidae is a widespread and unusual family of vermiform soil mites that inhabit mineral regolith (sands and mineral soil horizons). The nematalycid mites appear to be exclusively thelytokous. These highly elongated mites move around like worms by extending and contracting their bodies via a combination of hydraulic pressure and a continuous muscle layer underlying a thin epidermis. Their unique physiology among mites and their several idiosyncratic features are almost certainly an adaptation for living in small interstitial spaces in mineral soil and sand (Haupt and Coineau 1999; Bolton et al. 2015).

Afroleius floridus (Mahunka, 1985) comb. nov. and three new Afroleius Mahunka, 1984 species (Acari: Oribatida: Mycobatidae) from South Africa.

Three new species of the genus Afroleius Mahunka, 1984 are described: A. amieae sp. nov. with round notogastral foveae and long rostral and lamellar setae, A. inae sp. nov. with long lamellae and rostral and lamellar setae of similar length, and A. valerieae sp. nov. with ventrally directed bothridium and octotaxic system consisting of porose areas. Magyaria florida Mahunka, 1985 is recombined in the genus Afroleius as A. floridus comb. nov. Juvenile instars of A. floridus comb. nov. are described.

New species, new records and a checklist of oribatid mites (Acari: Oribatida) from Nepal

An annotated checklist of identified oribatid mite taxa from Nepal is provided. It includes 77 species/subspecies, 56 genera and 40 families; 36 species/subspecies, 21 genera and nine families are recorded for the first time in Nepal. Two new species, Vilhenabates schawalleri sp. n. (Haplozetidae) and Taiwanoppia (Taiwanoppia) paranepalica sp. n. (Oppiidae), are described from soil of central Nepal. Vilhenabates schawalleri sp. n. is morphologically similar to V. giganteus Ermilov & Rybalov, 2012, however, it differs from the latter by the body size, length of rostral, lamellar and subcapitular setae, location of lamellar setae, adanal setae ad3 and adanal lyrifissures and number of porose areas. Taiwanoppia (Taiwanoppia) paranepalica sp. n. is morphologically similar to T. (T.) nepalica Ermilov & Martens, 2014, however, it differs from the latter by the body size and morphology of the rostrum.

The oribatid mite subgenus Galumna (Galumna) (Acari, Oribatida, Galumnidae) in the Philippines.

Five species of the subgenus Galumna (Galumna) (Acari, Oribatida, Galumnidae) are registered in the Philippine oribatid mite fauna. A new species, Galumna (Galumna) makilingensis sp. n., is described; it is most similar morphologically to Galumna (Galumna) tokyoensis Aoki, 1966, but differs from the latter by the morphology of porose areas Aa and Ap, rostral setae, and length of interlamellar setae. Three species, Galumna (Galumna) crenata Deb & Raychaudhuri, 1975, Galumna (Galumna) cf. exigua Sellnick, 1925 and Galumna (Galumna) khoii Mahunka, 1989, are recorded in the Philippines for the first time. The species Galumna (Galumna) crenata is redescribed. An identification key to the Philippine species of Galumna (Galumna) is given.

New species of oribatid mites of the genera <em>Hermannobates</em> and <em>Rhynchoribates</em> (Acari: Oribatida: Hermanniellidae, Rhynchoribatidae) from Ecuador

Abstract Two new species of oribatid mites, Hermannobates dilatatus sp. nov. and Rhynchoribates longisetosus sp. nov., are described from Ecuadorian soils. Hermannobates dilatatus sp. nov. is most similar to H. ruseki Starý, 1998, however, it differs from the latter by the smaller body size, absence of flagelliform posterior notogastral setae, bacilliform exuvial setae d1E and e1E, longer adanal setae ad1 and bifurcate epimeral setae1a, 1c, 2a and 4b.Rhynchoribates longisetosus sp. nov. is most similar to R. insignis Balogh & Mahunka, 1969, however, it differs from the latter by the rostral setae bent backwards and long, flagelliform notogastral setae.

Two new species of oribatid mites of Lasiobelba (Acari, Oribatida, Oppiidae) from Nepal, including a key to all species of the genus.

Two new species of oribatid mites of the genus Lasiobelba (Oribatida, Oppiidae), Lasiobelba (Lasiobelba) daamsae sp. n. and Lasiobelba (Antennoppia) nepalica sp. n., are described from eastern Nepal. Lasiobelba (L.) daamsae sp. n. is most similar to L. (L.) remota Aoki, 1959 and L. (L.) gibbosa (Mahunka, 1985), however, it differs from both by the anterior part of pedotecta I specifically curved, rostrum pointed and exobothridial setae not shorter than bothridial setae. Lasiobelba (Antennoppia) nepalica sp. n. is most similar to L. (A.) granulata (Mahunka, 1986), however, it differs from the latter by the larger body size, exobothridial setae longer than rostral setae and bothridial setae not longer than interlamellar setae. An identification key to known species of Lasiobelba is given.

<strong><strong></strong></strong><p align="justify">Checklist of oribatid mites (Acari: Oribatida) from two forest plantations of southern Vietnam, including new records and description of a new species of the genus <em>Suctobelbata</em> (Suctobelbidae)</p><strong></strong>

An annotated checklist of oribatid mite taxa from two forest plantations of Dong Nai Biosphere Reserve (Southern Vietnam) is presented. It includes 55 species, 39 genera and 23 families. Otocepheus spatulatus, Yoshiobodes aokii, Acrogalumna bipartita and the genera Yoshiobodes, Suctobelbata are first records from Vietnam. Suctobelbata is recorded for the first time from the Oriental region. Suctobelbata bituberculata sp. nov. (Suctobelbidae) is described from litter. The new species is most morphologically similar to Suctobelbata truncicola (Forsslund, 1941) from the Palearctic region, but it is clearly distinguishable from the latter by the rectangular tectopedial fields, setiform rostral setae and the prodorsal tubercle represented by a transverse line.

Collection of Oribatid Mites (Acari: Oribatida) from Dong Nai Biosphere Reserve of Southern Vietnam, with Description of Three New Species

The present study is based on materials collected during Russian-Vietnamese expedition in July 2012 in Dong Nai Biosphere Reserve of Southern Vietnam. An annotated checklist of oribatid mite taxa from tropical forest is presented. It includes 113 species from 74 genera and 38 families. Carabodes samoensis, Mochlozetes ryukyuensis, Otocepheus excelsus, Pergalumna hauseri, Suctobelbella sexsetosa, Tuberemaeus perforatoides and the genera Carabodes, Mochlozetes are first records from Vietnam; C. samoensis and M. ryukyuensis are recorded for the first time from the Oriental region. Three new species - Dolicheremaeus contactus sp. nov. (Tetracondylidae), Unguizetes latus sp. nov. (Mochlozetidae) and Galumnella tiunovi sp. nov. - are described from soil. Doli- cheremaeus contactus sp. nov. is distinguishable from other species of the genus by the presence of the following character states in combination: sensilli bacilliform; all condyles present, and lateral prodorsal and notogastral condyles densely contacted with each other; 10 pairs of notogastral setae of medium size, straight, barbed; adanal lyrifissures located in paraanal position; adanal setae inserted nearly to margin of the ventral plate. Unguizetes latus sp. nov. is distinguishable from other species of the genus by the presence of the following character states in combination: sensilli clavate; rostrum rounded; distinct translamella absent; lamellae with lateral tooth; prolamellar line developed; pteromorphs well developed; porose areas A1 rounded, Aa, A2, A3 oval; five pairs of genital plates present. Galumnella tiunovi sp. nov. is distinguishable from other species of the genus by the presence of the following character states in combination: prodorsum with two large teeth laterally; sensilli setiform; rostral setae developed, lamellar and interlamellar setae represented by alveoli; body surface microfoveolate, without reticular pattern; genital setae inserted in two rows on each plate; postanal porose area absent.

A new species of Rhynchobelba Willmann, 1953 (Acari: Oribatida: Suctobelbidae) from Turkey

In the present study, a new species of Rhynchobelba, R. ozkani n. sp., is described and investigated by scanning electron microscopy. Also, a new locality and redescription of Nanhermannia nana (Nicolet, 1855) is given. The new species Rhynchobelba ozkani n. sp. differs from the other species of the genus Rhynchobelba by the shape of rostrum, body dimensions, length and shape of sensillus and type of rostral seta.

Four new species of the superfamily Galumnoidea (Acari: Oribatida) from Ecuador

Four new oribatid mite species of the superfamily Galumnoidea, Pergalumna paradecoratissima sp. nov., Pergalumnaparalongisetosa sp. nov., Pergalumna ecuadorensis sp. nov. and Galumnopsis lanceosensilla sp. nov., are described fromEcuador. The genus Galumnopsis is recorded for the first time for the Ecuador. Pergalumna paradecoratissima sp. nov.is very similar in having the combination of foveolate prodorsum, striate notogaster, setiform sensilli, interlamellar setaeshorter than lamellar and rostral setae, absence of anterior notogastral margin and three pairs of notogastral porose areas,to Pergalumna decoratissima Pérez-Íñigo & Baggio, 1986 from Brazil, however it differs from the latter by morphologyof rostrum, body size, surface of anal plates and length of epimeral setae. Pergalumna paralongisetosa sp. nov. is verysimilar in having the combination of setiform sensilli, long prodorsal setae, absence of anterior notogastral margin, threepairs of notogastral porose areas and long adanal setae ad 1 and ad 2 to Pergalumna longisetosa Balogh, 1960 from CentralAfrica, however it differs from the latter by body size, lengths of sensilli and interlamellar setae, absence of medial pore,length of epimeral setae. Pergalumna ecuadorensis sp. nov. can be distinguished from all similar species by having theround rostrum, setiform sensilli, long and setiform prodorsal setae, absence of anterior notogastral margin, smooth bodysurface and three pairs of oval notogastral porose areas, and by the very long interlamellar setae. Galumnopsis lanceosen-silla sp. nov. can be distinguished from all similar species (with smooth body surface) by the morphology of sensilli which are lanceolate, with tooth in distal part.

Two new species of Oppiidae (Acari: Oribatida) from Ecuador

Two new oribatid mite species of Oppiidae, Gittella ecuadoriensis sp. nov. and Lasiobelba (Antennoppia) chistyakovi sp. nov., are described from Ecuador. Gittella and Lasiobelba are recorded for the first time from Ecuador. Gittella ecuadoriensis sp. nov. differs from all species of the genus by the selective characters (long, setiform and smooth notogastral setae, granulate body surface, sensilli with long cilia, absence of muscle sigilla in interbothridial and epimeral regions). Lasiobelba (Antennoppia) chistyakovi sp. nov. differs from all species of the subgenus by the setiform sensilli with long cilia and localization of lamellar setae nearer to interlamellar setae, than rostral setae. An identification key to all known species of Gittella is presented.

Galumna (Cosmogalumna) tenensis, a new species of oribatid mite from northwestern Vietnam (Acari: Oribatida: Galumnidae)

ABSTRACT The oribatid mite subgenus Galumna (Cosmogalumna) comprises five species. We describe here a species Galumna (Cosmogalumna) tenensis n. sp. collected from northwestern Vietnam. The new species is similar in polygonal networks of notogaster and pteromorphae to Galumna (Cosmogalumna) yonaguniensis Aoki, 2009 and Galumna (Cosmogalumna) hiroyoshii (Nakamura and Fujikawa, 2004), but differs from the first species by body size, length of rostral setae, morphology of prodorsal integument, and morphology of sensilli; and differs from the second species by body size, shape of rostrum, location of lamellar and rostral setae, and development of interlamellar setae. A diagnostic key to all known species of Galumna (Cosmogalumna) is presented.

A new species of Protoribates (Acari: Oribatida: Haplozetidae) from southern Vietnam

ABSTRACT Protoribates heterodactylus n. sp. is proposed and described. This species was collected in sandy soil of Dipterocarp forest from Cat Tien National Park (southern Vietnam). The new species is similar in body size, morphology of sensilli, long adanal setae ad 1, ad 2, and bidactylous legs only to Protoribates luteus (Hammer, M. 1979. Investigations on the oribatid fauna of Java. Det Kgl. Danske Vidensk. Selsk. Biol. Skrifter. 22(9): 1–72.) from Java Island, but differs from that species by thick rostral, lamellar and epimeral (3b, 4a) setae.

The Galumnoid fauna (Acari: Oribatida) of Cat Tien National Park (Southern Vietnam) with description of two new species

ABSTRACT We have registered 11 species, five genera, two families, of Galumnoidea in Cat Tien National Park (southern Vietnam). Genera Leptogalumna Balogh, 1960 and Neogalumna Hammer, 1970 are the first records for Vietnam. Two new species Pergalumna indistincta n. sp. and Galumna pseudokhoii n. sp. are described from dark loamy soil of Lagerstroemia forest. P. indistincta n. sp. is similar in notogastral indistinct areae porosae, punctate body surfaces, morphology of prodorsal setae, and incomplete dorsosejugal suture only to Pergalumna amorpha Mahunka, 2008 from Thailand, but differs by body size, morphology of notogastral areae porosae, and development of adanal setae ad 2. G. pseudokhoii n. sp. is very similar in location and morphology of notogastral areae porosae, morphology of rostral, lamellar, and interlamellar setae; location of lamellar lines; and incomplete dorsosejugal suture to Galumna khoii Mahunka, 1989 from Vietnam, but differs by body size, morphology of sensilli, and number of genital setae on anterior parts of genital plates.

A new diagnosis of <em>Schalleriella</em> (Acari: Oribatida: Microzetidae) and a new species from Vietnam

A new species of oribatid mite, Schalleriella vietnamica sp. nov., is proposed and described from dark loamy soil of a lagerstroemia forest in Cat Tien National Park (southern Vietnam). This represents the first finding ofSchalleriella in the Oriental region. The genus currently comprises only the type species, Schalleriella grabouwensis, from which S. vietnamica differs by the morphology of the lamellar apices and rostral setae and by the presence of an interlamellar tubercle, longitudinal notogastral lines and areoles in the anogenital region. A new generic diagnosis of Schalleriella is presented.

Two new species of protoplophorid mites (Acari: Oribatida: Protoplophoridae) from Thailand

Two new species of the oribatid mite family Protoplophoridae (Acari: Oribatida), Arthrhoplophora adjacentis sp. nov. and Protoplophora takensis sp. nov., collected from leaf litter of dry evergreen forest, are described and illustrated from Thailand. Arthrhoplophora adjacentis sp. nov. is unique in having the long ciliated rostral setae which are closely paired and bidactylous claws on pretarsi I, whereas pretarsi II–IV are tridactylous. Protoplophora takensis sp. nov. differs from its congeners by the presence of notogastral setae cp, seven pairs of genital setae and four-segmented palpi. Identification keys to species of Arthrhoplophora and Protoplophora are also provided.

A new species of Dolicheremaeus (Acari: Oribatida: Tetracondylidae) from Ethiopia

The oribatid mite genus Dolicheremaeus comprises more than 160 species. We describe a new species, Dolicheremaeus aethiopicus sp. nov. , collected in soil from Bale Mountains National Park (African region, Ethiopia). This new species differs from other species by a combination of the length of prodorsal setae; morphology of rostral setae and sensilli; morphology and number of notogastral condyles and the morphology of the notogastral setae; number of epimeral setae; and the morphology of leg setae u .

Rhynchophorus ferrugineus and Rhynchophorus palmarum

<i>Rhynchophorus ferrugineus </i>and<i> Rhynchophorus palmarum</i>

Anomaloppia mazandaranica (Acari: Oribatida: Oppiidae) n. sp. from Iran

A new species of oribatid mite of the family Oppiidae Sellnick, 1937, Anomaloppia mazandaranica sp. n., is described from Mazandaran province, Northern Iran. The new species is characterized by its long sensillus with a fusiform-clavate head and 6-7 long barbs; interlamellar seta as long as lamellar and rostral setae; notogastral setae finely barbed and seta lm as long as others; and a long solenidion on genu I.