Atractides (s. str.) panniculatus K. Viets, 1925

Gerecke, Reinhard, 2021, The water mites of the family Hygrobatidae (Acari, Hydrachnidia) in Italy, Zootaxa 5009 (1), pp. 1-85 : 34-35

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https://doi.org/ 10.11646/zootaxa.5009.1.1

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scientific name

Atractides (s. str.) panniculatus K. Viets, 1925
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Atractides (s. str.) panniculatus K. Viets, 1925

(Figs 30 L-N; 32 D)

Material examined. Calabria: I 433, 1/0/0 slide. Trentino-Alto Adige: I sa 110, 3/4/0 slide.

Previously published records from Italy: Trentino-Alto Adige ( Crema et al. 1996, Gerecke et al. 2009). Records from Sicily (“ Atractides sp. prp. panniculatus ” Gerecke 1991, Ferrito 1994) do not refer to A. panniculatus , but to various different species – the material in question is revised in the present paper.

Remarks: With regard to several measurements, the specimen from Calabria is at the lower level of the range established for Central European populations. The distoventral margin of P-2 is more protruding than in typical Central European specimens, but not as distinct as in A. fissus . The arrangement of the Ac in a close triangle, with Ac-1 nearly touching Ac-3 is observed in both species. Features in the specimen from Calabria found typical for A. panniculatus , in contrast to A. fissus , are major coxal field measurements L 380, in A. fissus <350), relatively small Ac (diameter <60, in A. fissus > 60), and a relatively stout I-I-5 (dL/HB 3.2, in A. fissus > 3.7).

Habitat: Crenobiont. The Calabrian record from a spring in beech forest at high elevation, 1750 m. Distribution: Central and Southern Europe, Asia Minor.

Crema, S., Ferrarese, U., Golo, D., Modena, P., Sambugar, B. & Gerecke, R. (1996) Ricerche sulla fauna bentonica ed interstiziale di ambienti sorgentizi in area alpina e prealpina. Report del Centro di Ecologia Alpina, Viote Monte Bondone, 8, 1 - 104.

Ferrito, V. (1994) Les macroinvertebres benthiques de la riviere Simeto (Sicile) et de quelques-uns de ses affluents. Annales de Limnologie, 30 (1), 33 - 56. https: // doi. org / 10.1051 / limn / 1994003

Gerecke, R., Schatz, H. & Wohltmann, A. (2009) The mites (Chelicerata: Acari) of the CRENODAT project: Faunistic records and ecological data from springs in the Autonomous Province of Trento (Italian Alps). International Journal of Acarology, 35, 303 - 333 https: // doi. org / 10.1080 / 01647950903059452

Viets, K. (1925) Beitrage zur Kenntnis der Hydracarinen aus Quellen Mitteleuropas. Zoologische Jahrbucher. Abteilung fur Systematik, Geographie und Biologie der Tiere, 50 (4 - 6), 451 - 596.