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Proceedings Papers
Published: 2022-11-30

First detection of numerical variations in aggenital setae of female Eustigmaeus segnis (Koch) (Acariformes: Stigmaeidae)

Department of Biology, Faculty of Arts and Sciences, Erzincan Binali Yıldırım University, Erzincan, Turkey
Plant Health and Environment Laboratory, Ministry for Primary Industries, Auckland, New Zealand
Department of Biology, Graduate School of Natural and Applied Sciences, Erzincan Binali Yıldırım University, Erzincan, Turkey
Department of Biology, Faculty of Arts and Sciences, Fırat University, Elazığ, Turkey
Abnormality asymmetry mite morphology setae


Eustigmaeus segnis (Koch, 1836) (Stigmaeidae) (Fig. 1) has a widespread distribution and was recorded from many countries including Turkey (Fan et al. 2016; Doğan et al. 2018a; Doğan 2019). This species can be recognized by having dorsal dimples in uniform size, dorsal body setae long, falciform with marginal spinules, dorsal setae c1 widely spaced in both sexes, metasternal shield fused with (Fig. 2A) or partly separated from endopodal shields (Fig. 2B) in female and a pair of aggenital setae in both sexes (Doğan 2005; Bayrak et al. 2019).


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  2. Bingül, M., Doğan, S. & Doğan, S. (2017) Morphological abnormalities in some stigmaeid species of Eustigmaeus, Stigmaeus and Storchia (Acari: Raphignathoidea: Stigmaeidae). Systematic and Applied Acarology, 22, 2119–2126.

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  5. Doğan, S., Doğan, S. & Bingül, M. (2018a) The discovery of pharate female of Eustigmaeus segnis (Koch) (Acari: Stigmaeidae) in its deutonymphal integument. Plant Protection Bulletin, 58, 41–46. (In Turkish)

  6. Doğan, S., Doğan, S., Bingül Türk, M. & Erman, O. (2018b) Morphological variations observed in the cosmopolitan mite species Eustigmaeus segnis (Koch) (Acari: Stigmaeidae). XV. International Congress of Acarology (XV ICA), 2–8 September 2018, Antalya, Turkey, p. 236.

  7. Fan, Q.-H., Flechtmann, C.H.W. & Moraes, G.J. de (2016) Annotated catalogue of Stigmaeidae (Acari: Prostigmata) with a pictorial key to genera. Zootaxa, 4176, 1–199.

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