Some observations on Antarctic Oribatei (Acarina). Liochthonius australis sp. n. and two Oppia ssp. n
1968 - Volume: 10 Issue: 2 pages: 313-356
Keywords
Acari
ecology
population studies
Antarctic Oribatei
Antarctica
Oppia
Liochthonius australis
new subspecies
new species
Abstract
Results given in this paper refer to the Oribatid mites (Acarina) collected during the XIX chilean Antarctic Expedition, mainly in the Antarctic Peninsula and the South Shetland Islands by the author. A collection of oribatids sampled by means of quantitative processes and extracted by Berlese-Tullgren funnels is analyzed from the systematic point of view, and some characteristics of their populations stated. Five species are recorded, of which one is new to science, Liochthonius aztstralis n. sp., and two other taxa described as new subspecies: Oppia loxolineata iVallwork, I965 longipilosa n. ssp. and Oppia pepitensis Hammer, I962 brevipectinata n . ssp.; the remaining two correspond to the more common Antarctic species Alaskozetes antarctica, and Halozetes belgicae. Data on the geographical distribution, preferencial substrates, density, relative abundance, age pyramids, sex ratio, frequency, and number of species in the samples are given for the species found.
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