Schizocarpus gozdziewskii, Bochkov, Andre V., Labrzycka, Anna, Skoracki, Maciej & Saveljev, Alexander P., 2012

Bochkov, Andre V., Labrzycka, Anna, Skoracki, Maciej & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki), Zootaxa 3162, pp. 39-59 : 51

6. Schizocarpus gozdziewskii sp. nov.

( Fig. 9 )

Schizocarpus sp., Bochkov & Dubinina 2011: 64

Description. MALE (holotype). Body 380 long (370–385 in 10 paratypes) and 200 wide (200–210); body length/ width ratio about 1.9:1. Idiosoma egg-shaped, strongly convex dorsally. Hysteronotal shield 70 long and 85 wide. Anterior margin of hysteronotal shield concave. Setae d1 situated close to anterior margin of this shield, distance d1-d1 90. Setae e1 situated on hysteronotal shield, distinctly anterior to its posterior margin. Distance e1-e1 55. Setae h1 situated laterally, widely separated from each other, distance h1-h1 100. Setae f2 absent. Setae h3 widely separated from each other, distance h3-h3 90. Opisthosomal membranes moderately developed, 20 long. Setae ps3 situated laterally, almost at same transverse level as adanal suckers. Adanal shields roughly rounded in outline; their borders well sclerotized, central area not punctate, additional small non-punctate areas present around setae ad1. Minimal distance between these shields 7. Setae ad1 represented by alveoli and situated on inner borders of adanal shields, postero-mesal or almost at same transverse level as adanal suckers. Distance between adanal sucker and seta ad1 subequal to diameter of adanal suckers or 1.5 times longer. Adanal suckers situated in anterior half of adanal shields, 15 in diameter, with dentate corolla (type E), without external sclerotized ring. Setae ps1 nonpedunculate, situated on internal border of adanal shields, posterior to setae ad1. Adanal setae ad2 present, situated on inner border of adanal shields between levels of setae ad1 and ps1, slightly mesal to these setae and closer to ps1 than to ad1. Ventral anal sclerite distinct. Lengths of some setae: h1 11, h2 180, h3 35, ps3 40, ps2 140. Tarsus III 35 long, 17 wide; tarsus IV 20 long, 15 wide.

Type material. Holotype male ( ZIN T-Chir-18) and 14 male paratypes ( ZIN AVB- 2011-0504-011, #1-14) from Castor fiber belorussicus [beaver #5], POLAND: Podlaskie Voivodeship, Suwałki County, near Wiżajny village, 54°21'50''N, 22°52'6''E, 18 April 2003, coll. A. Labrzycka; 2 male paratypes ( ZIN AVB- 2011-0504-012, #1, 2), same data [beaver #3]; 3 male paratypes ( ZIN AVB- 2011-0304-013, #1-3), same data [beaver #6]; 13 male paratypes ( ZIN AVB- 2011-0504-012, #1-13), same data, 17 April 2003 [beaver #2].

Type depositions. Holotype and most paratypes—in ZISP, 2 paratypes—in AMU, and 2 paratypes—in UMICH.

Microhabitat. Dorsum and flanks.

Distribution. Described from C. f. belorussicus from Poland (Suwałki) and from C. f. orientoeuropaeus from Russia (Voronezh Reserve).

Etymology. This species is dedicated to the well known Polish theriologist, Mr. J. Gozdziewski (the Polish Hunting Association, Suwałki).

Differential diagnosis. This new species is close to S. klompeni sp. nov. In both of these species, the idiosoma is egg-shaped, the corolla of the adanal suckers is dentate, setae ad2 are present, setae ps3 are situated laterally and setae f2 are absent. These species differ from each other by the following characters. In S. gozdziewskii sp. nov., the adanal shields are ovoid, the inner borders of the adanal shields are distinctly sclerotized, setae ps1 are non-pedunculate and situated slightly postero-lateral to ad2, setae ad2 are setiform, and tarsi IV are longer than wide. In S. klompeni sp. nov., the adanal shields are elongated, the inner borders of the adanal shields are poorly sclerotized, setae ps1 are pedunculate, situated mesal to ad2 and at the same transverse level; setae ad2 are represented only by alveoli, and tarsi IV are wider than long.

Figures

FIGURE 9. S. gozdziewskii sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.