Abstract
The genus Neotyrrellia, three species of which were previously known from streams and seepage areas in South America, is recorded from two streams and a waterfall in Central America (Costa Rica). As a morphological peculiarity, the examined specimens show acetabula-like structures on the fourth coxae. The combination of ‘normal’ acetabula/genital papillae in the genital region and acetabula on the coxae has not been reported for any other mite so far. SEM- and TEM-investigations show the same ultrastructure of the acetabula on the genital flaps and the coxae, suggesting the same function for both types of acetabula. These results are part of a study on the biogeography, ecology and systematics of water mites from Costa Rica.
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Goldschmidt, T., Alberti, G., Meyer, E.I. (1999). Presence of acetabula-like structures on the coxae of the neotropical water mite genus Neotyrrellia (Tyrrelliinae, Limnesiidae, Prostigmata). In: Bruin, J., van der Geest, L.P.S., Sabelis, M.W. (eds) Ecology and Evolution of the Acari. Series Entomologica, vol 55. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1343-6_42
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DOI: https://doi.org/10.1007/978-94-017-1343-6_42
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