Two new species of oribatid mites of the genus Xenillus (Acari, Oribatida, Liacaridae) from Bolivia

Keywords: Oribatida, Bolivia, Taxonomy, Morphology

Abstract

Two new species of oribatid mites of the genus Xenillus (Oribatida, Liacaridae) are described from leaf litter in a rain forest in Bolivia. Xenillus pseudobolivianus sp. n. is similar to X. bolivianus and X. neonominatus in the morphology of lamellar cusp, length of bothridial and interlamellar setae and length and morphology of dorsal notogastral setae, but differs from both by the morphology of bothridial head and interlamellar and notogastral setae, the ornamentation of the notogaster, and the different length of some notogastral setae. Xenillus amboroensis sp. n. is similar to X. amazonensis, X. disjunctus, X. diversisetosus, X. fecundus, X. longipes, and X. ornatus in the morphology of bothridial seta, but differs from all by the morphology of lamellar cusp, the placement of the lamellar seta, and the different length of some notogastral setae.

References

Balogh, J. & Balogh, P. (1985): Fifteen new species of the genus Xenillus Robineau-Desvoidy, 1839 (Acari: Oribatei) from South America. – Acta Zoologica Hungarica 31(1–3): 53–79.

Balogh, J. & Balogh, P. (1988): Oribatid mites of the Neotropical region. I. – Elsevier Science Publishers, Amsterdam and Akadémiai Kiadó, Budapest, 335 pp.

Balogh, J. & Balogh, P. (2002): Identification keys to the oribatid mites of the Extra-Holarctic regions. Vol. 1. – Well-Press Publishing Limited, Miskolc, 453 pp.

Balogh, J. & Mahunka, S. (1969): The scientific results of the Hungarian soil zoological expeditions to South America. 12. Acari: Oribatids from the materials of the second expedition. III. – Acta Zoologica Academiae Scientiarum Hungaricae 15(3–4): 255–275.

Balogh, J. & Mahunka, S. (1977): New data to the knowledge of the oribatid fauna of Neogea (Acari). II. – Acta Zoologica Academiae Scientiarum Hungaricae 23(3–4): 247–265.

Balogh, P. (1985): The species of the genus Xenillus Robineau-Desvoidy, 1839 in the Neogea (Acari: Oribatei). – Opuscula Zoologica, Budapest 21: 41–62.

Balogh, P. (1986): Four new Xenillus species from the Neotropical region (Acari: Oribatei). – Opuscula Zoologica, Budapest 22: 43–50.

Covarrubias, R. (1967): New oribatids (Acarina) from Chile. – Opuscula Zoologica, Budapest 7(2): 89–116.

Grobler, L., Ozman, S. K. & Cobanoglu, S. (2003): The genera Liacarus, Stenoxenillus and Xenillus (Oribatida: Gustavioidea) from Turkey. – Acarologia 43(1): 133–149.

Mahunka, S. (1984): Neue und interessante Milben aus dem Genfer Museum XLVIII. Oribatida Americana 8: Paraguay I (Acari). – Revue Suisse de Zoologie 91(1): 109–147. https://doi.org/10.5962/bhl.part.81870

Mahunka, S. & Zombori, L. (1985): The variability of some morphological features in oribatid mites. – Folia Entomologica Hungarica 46(1): 115–128.

Norton, R. A. (1977): A review of F. Grandjean’s system of leg chaetotaxy in the Oribatei (Acari) and its application to the family Damaeidae. Pp. 33–61. In: Dindal, D. L. (ed.): Biology of oribatid mites. – SUNY College of Environmental Science and Forestry, Syracuse.

Norton, R. A. & Behan-Pelletier, V. M. (2009): Suborder Oribatida. Chapter 15. Pp. 430–564. In: Krantz, G. W. & Walter, D. E. (eds): A manual of acarology. – Texas Tech University Press, Lubbock.

Pérez-Íñigo, C. & Baggio, D. (1997): Oribates édaphiques du Brésil (X). Quelques Oribates de l’État de Para. – Acarologia 38(4): 403–413.

Robineau-Desvoidy, D. M. (1839): Mémoire sur le Xenillus clypeator (Coléoptère nouveau). – Annales de la Société Entomologique de France 8: 455–462.

Subías, L. S. (2004): Listado sistemático, sinonímico y biogeográfico de los ácaros oribátidos (Acariformes, Oribatida) del mundo (1758–2002). – Graellsia 60(número extraordinario): 3–305. https://doi.org/10.3989/graellsia.2004.v60.iExtra.218

Subías, L. S. (2021): Listado sistemático, sinonímico y biogeográfico de los Ácaros Oribátidos (Acariformes: Oribatida) del mundo (excepto fósiles), 16ª actualización. 532 pp. Available from: bba.bioucm.es/cont/docs/RO_1.pdf

Travé, J. & Vachon, M. (1975): François Grandjean. 1882–1975 (Notice biographique et bibliographique). – Acarologia 17(1): 1–19.

Weigmann, G. (2006): Hornmilben (Oribatida). Die Tierwelt Deutschlands. Teil 76. – Goecke and Evers, Keltern, 520 pp.

Published
2021-11-19
How to Cite
ErmilovS. G., & StarýJ. (2021). Two new species of oribatid mites of the genus Xenillus (Acari, Oribatida, Liacaridae) from Bolivia. Acta Zoologica Academiae Scientiarum Hungaricae, 67(4), 301–311. https://doi.org/10.17109/AZH.67.4.301.2021