Atractides (Polymegapus) polyporus (K. Viets, 1922 )

Gerecke, Reinhard, 2021, The water mites of the family Hygrobatidae (Acari, Hydrachnidia) in Italy, Zootaxa 5009 (1), pp. 1-85 : 44

Atractides (Polymegapus) polyporus (K. Viets, 1922)

(Figs 25 D-F)

Material examined: Abruzzo: I 1187, 0/1/0; Calabria: I 1108, 2/0/0; Lazio: 1/3/0; Sardegna: I TG 15-02, 0/1/0; I TG 15-03, 4/2/0; I TG 17-03b, 1/3/0; Sicilia: All parts. I 45, 0/8/2; I 175, 1/1/0; I 176, 1/2/0; I 232, 2/0/0 slide; I 280, 0/1/0; I 282, 1/1/0 slide; I 319, 0/1/0 slide; I 393, 1/0/0 slide; I 399, 0/1/0; I 404, 0/1/0 slide; I 406 a, 0/1/0; I 495 Int , 2/0/2 slide; I 505, 4/0/0; I 531, 1/4/0; I 533, 0/1/0 slide; I 546, 0/1/0; 559 Int , 0/5/0 (0/1/0 slide); I 594, 0/1/0; I 596, 0/1/0; I 612, 1/0/0; I 618, 2/0/0 slide; I 623, 1/2/0; I 642, 0/1/0; I 650, 0/2/0; I 652, 2/4/0; I 657, 1/1/0; I 659, 0/1/0; I 661, 0/1/0; I 827, 1/2/0 (1/1/0 slide); I 848, 0/4/0 (0/1/0 slide); I 1140, 0/3/0; I 1228 a, 1/1/0; I dp 48, 2/2/0 slide; I dp 67, 2/4/0 slide; Trentino-Alto Adige: I sa 119 0/1/0. 407 sites, 107 specimens .

Previously published records from Italy: Abruzzo ( Cicolani & Di Sabatino 1988); Emilia-Romagna ( Cantonati et al. 2020); Piemonte ( Schwoerbel 1961); Sardegna ( Gerecke 2014b); Sicilia ( Gerecke 2003); Trentino-Alto Adige ( Gerecke et al. 2009).

Habitat: Crenobiont. Preferably in shaded, weakly seeping rheohelocrenes. At four sites in stream benthos and/ or the hyporheic interstitial, 220-1660 m.

Distribution: Central and Southern Europe, North Africa, Middle East.

Subgenus Tympanomegapus Thor, 1923