Eremaeozetes capensis

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Eremaeozetes capensis
Eremaeozetes capensis

Eremaeozetes capensis

Systematics
Order : Sarcoptiformes
Subordination : Horn mites (Oribatida)
Superfamily : Eremaeozetoidea
Family : Eremaeozetidae
Genre : Eremaeozetes
Type : Eremaeozetes capensis
Scientific name
Eremaeozetes capensis
Sweetheart , 2001

Eremaeozetes capensis belongs to the subclass of the mites (Acari) and was found in the Western Cape in South Africa - hence the name " capensis ". This species was collected on moist, decomposing plant remains near the seashore. The genus Eremaeozetes was established by Antonio Berlese in 1913and includes species from the oriental , ethiopian , neotropical and oceanic regions.

features

Eremaeozetes capensis is one of the largest Eremaeozetes species. But not all individuals become as large as the specimens from the type locality near Cape Town . In the South African provinces of Eastern Cape and KwaZulu-Natal , smaller specimens were found, which, with a length of 420 to 460 micrometers and a width of 225 to 260 micrometers, correspond to the average sizes found in the Eremaeozetidae.

In the adult stage the species is characterized by the following features: broad body shape, surface covered by a thick layer of cerotegument , lamellae almost completely fused, cuspids reaching far beyond the rostrum, surface of the Notogaster with a complex of wide, light-round depressions and raised ridges, posteromarginalsetae on broad apophyses, bristle-shaped Notogastral and Ventralsetae, three claws on the legs. The dorsal and ventral surface is densely covered with a brown to dark brown cerotegument and forms net-like, almost leather-like braids. For a more detailed analysis of the surface structure, the cerotegument is removed by placing the mite in a 10% KOH ( potassium hydroxide ) solution for 24 hours . After removing the cerotegument, the body surface appears light brown and reticulate.

Systematics

Eremaeozetes capensis belongs within the genus Eremaeozetes to a group of species that is characterized by longitudinal ribs and lobed lateral processes on the Notogaster.

Similar species

Morphologically, Eremaeozetes capensis is similar to the species Eremaeozetes trifurcus . This species was found in southern China , in the Guangdong province off the coast of Zhuhai (about 8 km north of Macau ). Similarities with E. trifurcus consist in the similar shape of the lamellae, the front edge of the Notogaster is only slightly curved in both species. The lenticulus is located at a considerable distance from the front edge of the Notogasters, posteromarginal apophyses are present, but they are much smaller in E. trifurcus than in E. capensis . The legs of both species have three claws (tridactyl). E. trifurcus is smaller and has shorter lamellae and notogastral bristles than E. capensis . The surface of E. trifurcus has more furrows, the lobes and lateral ridges on the Notogaster are less noticeable than on E. capensis .

Another similar species from this species group is Eremaeozetes dividipeltatus . This species is somewhat smaller than E. capensis (length 364–396 µm), has smaller ribs on the Notogaster and smaller apophyses. It was found in St. Lucia ( Lesser Antilles ).

Eremaeozetes verai is the only species that is similar in size to E. capensis (length 520-590 µm). This species was discovered in Uruguay .

credentials

  1. ^ Antonio Berlese: Acari nuovi, Manipoli VII-VIII. . In: Redia . 9, 1913, pp. 77-111.
  2. ^ Heinrich SCHATZ: On some species of Eremaeozetes Berlese 1913 (Acari Oribatida Eremaeozetidae) from South Africa . In: Tropical Zoology . 16, No. 1, 2003, ISSN  1970-9528 , pp. 113-131.
  3. ^ Z. Wen: The first record of Eremaeozetes in China with description of a new species (Acari: Eremaeozetidae) . In: Journal of Norman Bethune University of Medical Sciences . 20, No. 6, 1994, pp. 565-566.
  4. ^ Sándor Mahunka: Mites (Acari) from St. Lucia (Antilles). 2. Oribatida. . In: Acta Zoologica Academiae Scientiarum Hungaricae . 31, No. 1-3, 1985, pp. 119-178.
  5. Sándor C., M. Sarasola: Soil oribatid mites from Uruguay (I) (Acari, Oribatei). Three new species from the department of Cerro Largo. . In: Acarologia . 36, No. 1, 1995, pp. 65-73.

literature

  • Heinrich Schatz: Eremaeozetes capensis n. Sp. (Acari: Oribatida: Eremaeozetidae) from South Africa . In: International Journal of Acarology . 27, No. 2, 2001, ISSN  0164-7954 , pp. 101-106. doi : 10.1080 / 01647950108684236 .