Morphological ontogeny of Pilogalumna kazakhstanica sp. nov. (Acari, Oribatida, Galumnidae) from Kazakhstan


Seniczak S. Seniczak A. Kaczmarek Sł. Marquardt T. Kozhagaliyeva R.
19 January 2023Systematic and Applied Acarology Society

Systematic and Applied Acarology
2023#28Issue 1105 - 122 pp.

The morphological ontogeny of Pilogalumna kazakhstanicasp. nov. from Kazakhstan is described and illustrated. The adult stage of this species is most similar to P. ornatulaGrandjean, 1956, but differs from it mainly by slightly smaller body size and by having two postanal porose areas, whereas P. ornatula has usually a single porose area. In P. kazakhstanica the prodorsal porose area Ad and all notogastral porose areas are framed by dark brown integument, whereas in P. ornatula framed is usually porose area A1. The larva of P. kazakhstanica has 12 pairs of gastronotal setae, most are short and smooth, except for medium-sized and barbed c2, c3, h1 and h2, and minute, smooth h3, the nymphs have 15 pairs, most are short and smooth, except for medium-sized and barbed c2 and c3. In the juvenile instars the gastronotal shield is poorly developed, bearing setae of d-, l-series and h1 in the larva, and setae of d-, l-, h-series and p1 in the nymphs. In all juveniles, a humeral organ is present, and setae of c-, ad-series and p2 and p3 are with microsclerites.

juveniles , leg setation , microsclerites , oribatid mites , stage structure

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Department of Evolutionary Biology, Faculty of Biological Sciences, Kazimierz Wielki University, Bydgoszcz, Poland
Department of Natural History, University Museum of Bergen, University of Bergen, Bergen, Norway
Department of Biology and Ecology, Makhambet Utemisov West Kazakhstan State University, Uralsk, Kazakhstan

Department of Evolutionary Biology
Department of Natural History
Department of Biology and Ecology

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