Family Stigmaeidae Research Articles

First Description of Deutonymph Male of Eustigmaeus anauniensis (Canestrini) (Trombidiformes: Stigmaeidae)

With more than 130 species, Eustigmaeus Berlese is one of the most diverse genera in the family of Stigmaeidae.
 The genus has a worldwide distribution and is found in all zoogeographic regions with the exception of
 Antarctica. The adult female, adult male, deutonymph, protonymph, and larva of Eustigmaeus anauniensis
 (Canestrini) are known till now, but the immature male stage is unknown. In this study, five deutonymph male
 specimens of E. anauniensis were found in Türkiye. The description, illustrations of deutonymph males of E.
 anauniensis, and its measurements of some body parts were made. This is the first record of deutonymph male of E. anauniensis.

A new species of Agistemus Summers (Acari: Stigmaeidae), and key to all known species from Peru

A new species of the family Stigmaeidae, the genus Agistemus group terminalis, namely: A. peruvianus n. sp., inhabiting foliage of a native forest tree called algarrobo, Neltuma piurensis (Fabaceae), from Piura, north-western Peru, is described and illustrated based on females, males, and deutonymphs. The mites were found during spring, summer, and autumn, but more frequently observed autumn (March to June). A key to the Peru species of the genus Agistemus is provided.

A new species of the genus Cheylostigmaeus Willmann (Acari: Trombidiformes: Stigmaeidae) from Turkey

Adult female, male and all immature life stages of Cheylostigmaeus occultatus sp. nov. are described and illustrated from Sansa Gorge and Pülümür Valley in Turkey. The female of the family Stigmaeidae is ordinarily used for identification purposes, but, to the contrary, the identification of species in the genus Cheylostigmaeus is mainly and unusually dependent on the male’s characters. However, the new species described in this paper has been identified from the female due to its distinctive characters: suranal shield is completely tucked under the body, suranal setae are slimmer and without hyaline sheath, subcapitulum is hyalinised distally, setae or2 are thickened, curved and spinulate distally.

NEW DATA ON THE FAUNA OF STIGMAEIDAE (ACARI: PROSTIGMATA) OF THE ALTAI REPUBLIC, RUSSIA

During the 2021–2022 study of predatory mites of the Altai Republic (Russia), six additional species of the family Stigmaeidae (Acari: Prostigmata) have been recorded, of which Stigmaeus neosolidus sp. n. and S. altaicus sp. n. are new to science. Eustigmaeus lacunus and Ledermuelleriopsis ariyai have been recorded from Russia for the first time and redescribed based on the materials from the Altai. Eustigmaeus collarti and Stigmaeus fusus have been recorded from the Altai Republic for the girst time.

Diversity of Predatory Mite Fauna Associated with Various Agroclimatic Zones of Himachal Pradesh

Survey was conducted in four agroclimatic zones of Himachal Pradesh during 2011-2019. Five mite families viz. Phytosiidae, Stigmaeidae, Tydeidae, Anystidae and Cunaxidae along with 14 genera and 40 species were observed. The maximum predatory mites (15) were observed on apple out of which ten were found to belong to the family Stigmaeidae; and 25 species of predatory mites were the new records on fruits and vegetables in Himachal Pradesh. The present study updates the checklist of predatory mite fauna (86 species) in Himachal Pradesh with 40 species.

CONTRIBUTION TO THE STIGMAEIDAE (ACARI: PROSTIGMATA) FAUNA OF THE ALTAI REPUBLIC, RUSSIA

During a study of predatory mites of Western Siberia, 13 species of the family Stigmaeidae (Acari: Prostigmata) have been recorded from the Altai Republic, Russia. Stigmaeus akimovi sp. n. and Eustigmaeus summersi sp. n. are described as new to science. Mediolata uspenskii and Eustigmaeus acidophilus have been recorded from Russia for the first time and redescribed based on materials from Altai. Stigmaeus purpurascens, S. longipilis, S. sphagneti, S. delaramae, Mediolata pini, Eustigmaeus segnis, E. rhodomelus, E. parvisetus and Cheylostigmaeus sp. have been recorded from the Altai Republic for the first time.

Newly recorded stigmaeid mites (Acariformes: Raphignathoidea: Stigmaeidae) for the fauna of Turkey

The specimens belonging to the family Stigmaeidae among mite specimens collected from Pülümür Valley (Turkey) have been examined. A total of six stigmaeid mite species from the examined specimens have been identified. Of these, Eustigmaeus capitatus Stathakis, Kapaxidi & Papadoulis, Eustigmaeus nahidae Gheblealivand & Bagheri and Mediolata aegyptiaca (Zaher & Soliman) have been determined as new records for the fauna of Turkey. Also, the deutonymph stages of Eustigmaeus dogani Khanjani, Fayaz, Mirmoayedi & Ghaedi and Stigmaeus glabrisetus Summers, and the larva of Villersia sudetica Willmann are described for the first time in this study. All identified species are reported for the first time from Pülümür Valley. The species are measured, they are re-described based on the collected specimens and their photos are included.

<p class="Body">Two species of stigmaeid mites (Acari: Stigmaeidae) from Iran: Eryngiopus rezaiyeiensis sp. nov. and Parastigmaeus urmiaensis sp. nov.

Two new species, Eryngiopus rezaiyeiensis sp. nov. and Parastigmaeus urmiaensis sp. nov. of the family Stigmaeidae (Acari: Trombidiformes), are described and illustrated based on female and deutonymph specimens collected from Northwest Iran. A modified and updated table of diagnostic characters of the species of Eryngiopus, is also provided.

A new species of the genus Stigmaeus Koch (Acari: Stigmaeidae) from Turkey

ABSTRACTA new species of the family Stigmaeidae, namely Stigmaeus indivisus sp. nov., ex soil and litter under a creeper plant, is described and illustrated from Erzincan, Turkey.http://www.zoobank.org/urn:lsid:zoobank.org:pub:272FD9F9-436F-4CAC-BE2F-7F276D716E5F

A new species of Eustigmaeus (Acari: Prostigmata: Stigmaeidae) from Vietnam

A new species of the genus Eustigmaeus (Acari: Stigmaeidae), E. vietnamiensis sp. nov. is described from the bark of fig tree ( Ficus sp.) in Cat Tien National Park, Vietnam. The mite family Stigmaeidae is recorded from Vietnam for the first time.

Morphological abnormalities in some stigmaeid species of Eustigmaeus, Stigmaeus and Storchia (Acari: Raphignathoidea: Stigmaeidae)

Although the family Stigmaeidae is one of the most studied mite groups because of its economically important members, data on their morphological variations are very limited and still rather poorly studied. In the present study, asymmetric and numerical variations in the body setae occurring in some adult females and males are provided. The known data on morphological variations based on literature data are also provided.

New species and records of mites of the family Stigmaeidae (Acari: Prostigmata) collected from mosses in Southern Chile

Five new species of the family Stigmaeidae (Acari: Prostigmata), Stigmaeus palustris n. sp., Stigmaeus flexisetus n. sp., Stigmaeus patagoniensis n. sp., Pseudostigmaeus magellani n. sp. and Eryngiopus techuelche n. sp. are described from mosses in Southern Chile (Patagonia). Eustigmaeus ovatus (Chaudhri, 1965) is recorded from Chile for the first time and redescribed; Eustigmaeus chilensis (Chaudhri, 1965) is recorded from Tierra del Fuego for the first time and also redescribed.

Two new species and a new record of mites of the family Stigmaeidae (Acari: Prostigmata) collected from mosses in Russia

Two new species of the family Stigmaeidae (Acari: Prostigmata), Eustigmaeus extremiorientalis n. sp. and Stigmaeus mollibus n. sp., are described from mosses in the Far East and Western Siberia, Russia. Stigmaeus mimus is reported from Russia for the first time.

<strong>New Occurrence of the Uncommon </strong><strong>Hygrobiotic Mite Family Homocaligidae (Acari, Raphignathoidea) in Turkey: <em>Homocaligus crassipus</em> Fan</strong>

Abstract Most raphignathoid mites are characteristic of the drier edaphic microhabitats such as litter, soil, bark and moss. A few are fresh-water aquatic to sub-aquatic: species of the family Homocaligidae; and some species of Caligohomus Habeeb, 1966, Cheylostigmaeus Willmann, 1951 and Eustigmaeus Berlese, 1910 of the family Stigmaeidae. Homocaligidae has occasionally been reported from Asia, Australia, Europe, North America and South Africa. This rarely collected family has not been previously reported from Turkey, but now is known to be a part of the mite fauna of Turkey, with herein the re-description of Homocaligus crassipus Fan based on adults, protonymphs and deutonymphs found on hydrous grassy soil and moss wetland area, Eksisu Marsh, eastern part of Turkey. The male of H. crassipus is newly discovered and described here. Also, an identification key to the known species of the genus Homocaligus is presented.

Cheylostigmaeus tarae sp. nov. and Stigmaeus delaramae sp. nov. (Acari: Stigmaeidae) from Kurdistan, Iran.

Two new species belonging to the family Stigmaeidae, Cheylostigmaeus tarae sp. nov. and Stigmaeus delaramae sp. nov., are described from specimens collected from soil and litter under pear trees, Pyrus communis L. (Rosaceae) in Iran. A key to all Iranian species of the genera Cheylostigmaeus (male) and Stigmaeus (female) are provided.

Biological aspects of the predaceous mite, agistemus vulgaris soliman and gomaa and life table parameters on three host phytophagous mite species, (Acari: stigmaeidae)

Mites of family Stigmaeidae are potential predators of various species of phytophagous mites through the world.The present study was conducted in Acarology Research Laboratory Plant Protection Research Institute, Dokki, Egypt. The aim of this work was to study the effect of different prey species on the biology of stigmaeid mite, Agistemus vulgaris Soliman and Gomaa. The results showed that A.vulgaris completed its life cycle in 12.56 days when fed on Tetranychus urticae Koch as compared to 12.09 and 10.75 days when fed on Oligonychus sayedi Zaher, Gomaa & El-Enany and Aculops lycopersici Massee, respectively. The maximum average fecundity (53.75 eggs/female) was recorded after feeding on O. sayedi where as after feeding on T. urticae and A. lycopersici , it was 28.43 and 21.93, respectively. Predatory mite has better life table parameters in comparison with the other prey mites. The biological aspects of the predator was as follow, Mean generation time (T) averaged 18.63, 19.18 and 15.34 days, respectively; Net reproductive rate (Ro) averaged 12.82, 24.38 and 9.81; intrinsic rate of natural increase (rm) was 0.13, 0.16 and 0.14; finite rate of increase (λ) averaged 1.14, 1.18 and 1.16 when the mite fed on immature stages of T. urticae, O. sayedi and A. lycopersici, respectively. A. vulgaris is considered a promising biological control agent against phytophagous mites.

Two new species of the family Stigmaeidae (Acari: Trombidiformes) from Iran

Two new species of the family Stigmaeidae namely, Stigmaeus isfahaniensis sp. nov. and Cheylostigmaeus sepasgosariani sp. nov. collected from soil and leaf litter under Pinus sp. (Pinaceae) and Armenian bulgur (Itch) are illustrated and described.LSID urn:lsid:zoobank.org:act:CEB7D976-DE97-4A94-9B07-BAC0326BCC04

<p class="HeadingRunIn"><strong>Stigmaeid mites (Acari: Stigmaeidae) from vineyards in the state of Rio Grande do Sul, Brazil</strong></p>

The fauna of the family Stigmaeidae Oudemans on grapevines and weed plants associated with vineyard agroecosystem in the state of Rio Grande do Sul (Brazil) was studied. Five recognized species were reported: Agistemus brasiliensis Matioli et al., 2002, Agistemus floridanus Gonzales, 1965, Agistemus mendozensis Simons, 1967, Zetzellia agistzellia Hernandes and Feres, 2005, and Zetzellia malvinae Matioli et al., 2002. Two new species were described: Agistemus riograndensis sp. nov. and Zetzellia ampelae sp. nov. A pictorial key was compiled to aid in the recognition of these stigmaeids.

A new predatory mite species of the genus Eustigmaeus (Stigmaeidae: Acari) from Punjab, Pakistan

Mites belonging to the family stigmaeidae are known predators against the phytophagous mites and small soft-bodied insects. A survey was conducted to explore the predatory mite fauna of Punjab (Pakistan), a new predatory mite species of genus Eustigmaeus(Eustigmaeus hooriaae)was collected from Ameen Pur Bangla, 20 miles away north from district Faisalabad (Punjab) from Triticum aestivum (straw husk) by Bilal Saeed Khan and described here in this manuscript. Specimens were mounted on the glass slides with the help of Hoyer’s medium. The drawings of different body parts were made with the help of an ocular grid in a high power microscope. These specimens were compared with the already described species. Ceremonial description, illustration of main body parts, host range and comparison remarks are also given. Eighteen (18) paratype females were collected. Twelve (12) from the same collection data and six (6) were collected from R.Y.Khan from leaf litter. All specimens were deposited in the Acarology Research Laboratory, Department of Agri. Entomology, University of Agriculture, Faisalabad, Pakistan.

First Record of Mites of the Family Stigmaeidae (Acari, Raphignathoidea) from Rovno Amber with Description of a New Species of the Genus Mediolata

First Record of Mites of the Family Stigmaeidae (Acari, Raphignathoidea) from Rovno Amber with Description of a New Species of the Genus Mediolata A new species, Mediolata eocenica Kuznetsov, Khaustov et Perkovsky, sp. n., is described from the Late Eocene Rovno amber. It is the first fossil record of Stigmaeidae.