Schizocarpus heatherae, 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 : 49

4. Schizocarpus heatherae sp. nov.

( Fig. 7 )

Description. MALE (holotype). Body 410 long and 225 wide; body length/width ratio about 1.8:1. Idiosoma eggshaped, strongly convex dorsally. Hysteronotal shield 90 long and 85 wide. Anterior margin of hysteronotal shield uneven, without median concavity. Setae d1 situated on anterior margin of this shield, distance d1-d1 50. Setae e1 situated posterior to hysteronotal shield. Distance e1-e1 70. Setae h1 situated ventro-terminally, widely separated from each other, distance h1-h1 65. Setae f2 absent. Setae h3 situated laterally, distance h3-h3 100. Opisthosomal membranes moderately developed, 20 long. Setae ps3 situated laterally, slightly posterior to transverse level of adanal suckers. Adanal shields roughly rounded in outline, with distinctly sclerotized borders and non-punctate central area. Minimal distance between these shields 7. Setae ad1 represented by true setae, situated posterior and at same longitudinal level with adanal suckers. Distance between adanal sucker and seta ad1 subequal to diameter of adanal suckers. Adanal suckers situated in anterior half of adanal shields, 15 in diameter, with slightly and unevenly dentate corolla (type E), without external sclerotized ring around. Setae ps1 non pedunculate, situated close to each other on common small sclerotized plate, approximately at same transverse level with setae ad1. Adanal setae ad2 absent. Ventral anal sclerite distinct. Lengths of some setae: h1 microsetae, h2 135, h3 broken, ps3 30, ps2 95. Tarsus III 35 long, 12 wide; tarsus IV 20 long, 15 wide.

Type material. Holotype male ( ZIN T-Chir-15) from Castor fiber belorussicus [beaver #6], POLAND: Podlaskie Voivodeship, Suwałki County, near Wiżajny village, 54°21'50''N, 22°52'6''E, 18 April 2003, coll. A. Labrzycka.

Type depositions. Holotype—in ZISP.

Microhabitat. One specimen from flank.

Distribution. Type locality only.

Etymology. This species is dedicated to the well known Canadian acarologist Dr. Heather Proctor (University of Alberta, Edmonton, Canada).

Differential diagnosis. This species is close to S. latus ( Dubinina, 1964) . In both species, the idiosoma is eggshaped, the corolla of adanal suckers is dentate and setae ps3 are situated laterally. These species differ from each other by the following characters. In S. heatherae sp. nov., setae f2 are absent, setae ad1 are filiform, situated at the same longitudinal level with the adanal suckers and far posterior to them, and setae ps1 are not pedunculate and located close to each other on common sclerotized plate. In S. latus , setae f2 are present, setae ad1 are represented by alveoli and situated mesal to the adanal suckers and at the same transverse level with them, and setae ps1 are pedunculate, widely separated from each other and located on the adanal shields.

Figures

FIGURE 7. S. heatherae sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.