Umashtanchaeviella, Ermilov, Sergey G., Anichkin, Alexander E. & Tolstikov, Andrei V., 2014

Ermilov, Sergey G., Anichkin, Alexander E. & Tolstikov, Andrei V., 2014, Umashtanchaeviella plethotricha, a new genus and species of the family Tetracondylidae (Acari, Oribatida), ZooKeys 408, pp. 51-59 : 52-53

Genus Umashtanchaeviella gen. n.

Diagnosis.

Rostral, lamellar, interlamellar, notogastral and ventral setae setiform. Lateral prodorsal and lateral notogastral condyles of medium size, normally developed. Notogaster with 10 pairs of well developed setae and numerous plethotrichial setae. Ventral neotrichy absent (epimeral formula: 3 –1–3– 3; anogenital formula: 4 –1–2– 3). Pedotecta II rectangular. Adanal lyrifissures iad located nearly to the anal plates.

Type species.

Umashtanchaeviella plethotricha sp. n.

Etymology.

The specific name is dedicated to our colleague, the acarologist Dr. Umukusum Ya. Shtanchaeva (Universidad Complutense de Madrid, Madrid, Spain), for her extensive contributions to our knowledge of oribatid mites.

Remarks.

Umashtanchaeviella gen. n. can clearly be distinguished from all the other genera of Otocepheoidea by the following apomorphic character: presence of strong (more 250 pairs) notogastral plethotrichy (versus notogastral plethotrichy absent).

The new genus is most similar to representatives of the genera Hydroecocepheus Corpuz-Raros, 1979 (see Corpuz-Raros 1979), Neotrichocepheus Hammer, 1973 (see Hammer 1973), Trichocondyla J. et P. Balogh, 1986 (see J. et P. Balogh 1986) (all three from Tetracondylidae ), and Megalotocepheus (Archegotocepheus) Mahunka, 1988 (see Mahunka 1988), Trichotocepheus Aoki, 1965 (see Aoki 1965) (both from Otocepheidae ) by presence of body neotrichy, however, it can be distinguished from the genera listed above by the localization (notogaster versus ventral side), number (more than 250 pairs versus less than 20 pairs) and morphology (short, thin versus normally developed) of neotrichial setae.