Doğan, Salih

In the present work, morphological characteristics of species of the genus Stigmaeus Koch collected from the Karasu Valley in the Munzur Mountains (Türkiye) were examined. A total of 11 species of the Stigmaeus were identified in this study. Among them, S. dokeri, S. maraghehiensis and S. purpurascens are recorded for the first time from Türkiye. The protonymph and deutonymph stages of S. bifurcus, as well as the larva, protonymph and deutonymph stages of S. dokeri, are described for the first time. Furthermore, morphological variations were observed for the first time in S. dokeri and S. pulumurensis. The names Stigmaeus africanus Soliman & Gomaa, 1986, S. banksi Gomaa & Hassan, 1986, S. triramus Soliman & Gomaa, 1986 and S. zaheri Gomaa & Hassan, 1986 are considered nomina nuda. This study also highlights the importance of maintaining the current concept of the genus Stigmaeus for taxonomic stability. While the available molecular data suggest that some species may form distinct clades, single-locus analyses based on limited data sets are not yet considered sufficient to justify clear divisions at the genus level. Therefore, it has been suggested that a more balanced approach would be to cautiously consider the idea of dividing Stigmaeus into separate genera and to restructure it based on subgenera or natural species groups, in accordance with the concept of Berlese (1910), and the aim is to open this systematic framework for discussion. In this context, the proposal to reinterpret certain taxa such as Ledermuelleriopsis Willmann and Villersia Kuznetsov not as independent genera but as subgenera within Eustigmaeus Berlese has also been opened for discussion within the scope of this unifying approach. In conclusion, this study contributes to the diversity of Stigmaeus in Türkiye with new records, documents different developmental stages and morphological variation, clarifies the nomenclatural status of some species-names, and advocates a taxonomic framework that prioritises subgeneric re-structuring over generic-level splitting within Stigmaeidae systematics.

Zeytun, Erhan; Yazıcı, Mustafa

This study was conducted to determine the prevalence and density of Demodex mites in patients with seborrheic dermatitis. The study included 37 patients and 35 healthy controls who were diagnosed with seborrheic dermatitis by clinical examination. The sample materials were taken from the cheek, nasolabial and jaw areas of the participants using the standard superficial skin biopsy method and examined for the presence and number of Demodex mites under light microscopy. Demodex spp. mites were detected in 34 (91.9%) of the patients and in 20 (60%) of the controls. Demodex folliculorum was detected in 34 of 37 patients (mean 15.7/cm2; total 535) and D. brevis (mean 0.6/cm2; 20 total) in six patients. Demodex folliculorum was detected in 20 of 35 healthy controls (mean 2.7/cm2; total 56) and D. brevis (mean 0.5/cm2; total 1) in one of the 35 healthy controls. When patients and controls were compared in terms of Demodex prevalence and density, the differences were statistically significant. In conclusion, Demodex mites are more prevalent in patients with seborrheic dermatitis in Erzincan Province of Turkey. This condition may be related to the amount of sebum in patients with seborrheic dermatitis, however, this issue should be supported by further studies in which sebum levels are measured and ilarger number of patients are involved.

Özkan, Kürşad; Doğan, Salih; Ceylan, Mervenur

This study was carried out to examine the relationships between the distributions of raphignathoid mite (Acari: Raphignathoidea) species and their temporal and environmental site factors (i.e. season, habitat type, and altitude) in Pülümür Valley and its immediate environs, Turkey. Data was collected from 306 samples from the various locations in the study area. 70 raphignathoid mite species were identified. The most common raphignathoid species, genus, and family are Neognathus terrestris, Eustigmaeus, and Stigmaeidae, respectively. It has been also found that the greatest number of raphignathoid mite specimens has been encountered in autumn, followed by spring, summer, and winter, respectively.Before applying the statistical analysis, rare species (i.e., the species having less than 5% frequency value) were omitted from the data matrix. Thus, the first (original) matrix size was reduced from 70⨉306 to 20⨉242. Elevation is a continuous variable whereas seasons and habitat types are nominal data. Therefore, each of the seasons (winter, spring, summer, and autumn), and each of habitat types [i.e., litter, soil, soil and organic components, mixed material consisting of moss and liken, and the others (manure and ant nest)] were inserted as binary data [present (1), absent (0)] in the data matrix.Canonical Correspondence Analysis (CANOCA) was applied to define the species-site relationships. Findings indicate that Caligonella haddadi, Neognathus terrestris, Cryptognathus lagena, Raphignathus gracilis, and Stigmaeus devlethanensis are significantly associated with moss and lichen habitat whereas litter, grassy and mossy soil are more suitable habitat types for Favognathus amygdalus, F. cucurbita, Raphignathus kuznetzovi, Eustigmaeus dogani, E. pinnatus, E. segnis, Ledermuelleriopsis aminiae, L. ayyildizi, and Storchia robusta. In addition to this, three species Favognathus cucurbita, Eustigmaeus segnis, and Ledermuelleriopsis plumosus are positively and six species Caligonella humilis, Neognathus terrestris, Favognathus amygdalus, Raphignathus gracilis, Raphignathus kuznetzovi and Ledermuelleriopsis aminiae are negatively related to elevation.

Doğan, Salih

A family name was misspelt on pages 133 and 139(Table 2) in Doğan (2019): ‘EUPALOSELLIDAE’should be ‘EUPALOPSELLIDAE’

Doğan, Salih; Doğan, Sibel

Stigmaeus pulumurensis sp. nov. collected in soil and litter samples taken from Pülümür Valley in Tunceli (Turkey), was described as new to the science. In addition, drawings and phase contrast microscopic images of the new species were given. The new species resembles Stigmaeus tokatensis Dönel, Doğan, Sevsay and Bal by the presence of apodemal marking, all dorsal setae except setae f1 and h1-3 on the striated integument and suranal shields entire. However, it differs from the latter by: the absence of one setae on genu IV, the presence of punctuated patterns on the both sides of the prodorsum and the genital shield, and the location on the different shields of aggenital setae.

Sevsay, Sevgi; Pamuk, Efe

The larvae of Leptus (L.) esmailii Saboori and Ostovan given as ectoparasitic on sunn pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae) from Iran were collected from the same species host in Turkey. The larvae were briefly described and compared with the specimens which are previously given from Iran, also light microscope images of important parts of the specimens were presented here. This study is the second record of the genus Leptus from Turkey.

Elverici, Mert; Sevsay, Sevgi; Buğa, Evren

Trombidium demirsoyi sp. nov. Sevsay and Buğa is described andillustrated from larvae collected as ectoparasites on Zodarion thoni Nosek, 1905 and off-host from the soil in ÇanakkaleProvince, Turkey. This is the first record of a species of the spider familyZodariidae as a host for an ectoparasitic larva of a Trombidium Fabricius species.

Doğan, Salih; Doğan, Sibel

Bu çalışmada, (1) Türkiye’den Favognathus rosulatus sp. nov. türünün tanımı yapılmıştır. (2) Favognathus dakotaensis türünün Türkiye’den ilk kaydı verilmiştir. (3) Daha önce Cryptognathus cinsine ait olan ve Mısır’dan tanımlananiki türün (Favognathus aegyptiaca comb. nov. ve Favognathus rosetta comb. nov.) Favognathus cinsine dâhil edilmesiuygun görülmüştür. (4) Flechtmann (1971) tarafından verilen Favognathus agapictus ile Chaudhri vd. (1979) tarafındanverilen Favognathus dama isimlerinin Uluslararası Zoolojik İsimlendirme Yasası’na (ICZN – International Code of Zoological Nomenclature) göre taksonomik olarak geçerliliğinin olmadığı belirlenmiştir. Flechtmann (1971) ve Chaudhri vd.(1979), ICZN'ye göre zoolojik isimlendirme amacıyla yayımlanmış sayılmamalıdır ve bu çalışmalarda geçen F. agapictusve F. dama çıplak isimler olarak kabul edilmelidir. (5) Bagheri vd. (2015) tarafından İran’dan kaydedilen Favognathusorbiculatus türünün Favognathus kamili türüne aktarılması uygun görülmüştür.

Doğan, Salih; Doğan, Sibel

Pülümür Vadisi’nden (Türkiye) toplanan akarlar içerisinden Stigmaeidae familyasına ait örnekler incelenmiştir.İncelenen örneklerden toplam altı stigmaeid akar türü bu çalışmada değerlendirilmiştir. Bunlardan; Eustigmaeus capitatus Stathakis, Kapaxidi & Papadoulis, Eustigmaeus nahidae Gheblealivand & Bagheri ile Mediolata aegyptiaca (Zaher &Soliman) Türkiye faunası için yeni olarak tespit edilmiştir. Ayrıca Eustigmaeus dogani Khanjani, Fayaz, Mirmoayedi &Ghaedi, Stigmaeus glabrisetus Summers’ın dötonimf evreleri ile Villersia sudetica Willmann’ın larvası ilk defa bu çalışmada tanımlanmıştır. Tespit edilen bu türler Pülümür Vadisi’nden ilk kez kaydedilmiştir. Türlerin ölçümleri yapılarak tanımları toplanan örnekler üzerinden gözden geçirilmiş ve fotoğraflarına yer verilmiştir.

Doğan, Salih; Doğan, Sibel; Kabasakal, Burcu

The genus Columbicheyla Thewke and Enns included the family Cheyletidae is characterized by presenceof propodosomal and hysterosomal shields on idiosoma, presence of eyes,dorsolateral and humeral setae fan-like, dorsocentral setae squamate, palptarsus with two comb-like setae and one sickle-like seta, palp claw edentate,all legs with claws. Thegenus comprises two species viz. Columbicheyla bicirci Linand Zhang and C. macroflabellataThewke and Enns. Here we present the new record of Columbicheyla macroflabellatafor the fauna of Turkey. This is the first occurrence of the genus Columbicheyla from Turkey.