Radfordia (Microtimyobia) arvicolae Fain and Lukoschus, 1977

Bochkov, Andre V., 2011, Mites of the subgenus Microtimyobia (Acariformes: Myobiidae: Radfordia) and their host-parasite relationships with cricetid rodents (Cricetidae) 2954, Zootaxa 2954 (1), pp. 1-86 : 40-41

10. Radfordia (Microtimyobia) arvicolae Fain and Lukoschus, 1977

( Figs. 27 , 28 )

Radfordia (Microtimyobia) arvicolae Fain and Lukoschus, 1977: 67 , figs 67–68, 88, 106

Diagnosis. FEMALE ( Fig. 27 ). Subcapitular setae m with 5 tines. Setae vi distinctly wider than e2. Setae e1 and f1 filiform. Distances c1-d1 and d1-d2 subequal. Vulvar region slightly ornamented in posterior part. Setae ps3 distinctly developed, slightly curved. Setae ag1 and ag2 subequal. Setae 1b and 1d slightly thicker than 1a. Setae 2a and 3a whip-like, much longer than 2b. Trochanter I with ventral projection, without tubercles. Measurements of paratype ( Fain & Lukoschus 1977): body, including gnathosoma, 450 long, 295 maximum wide. Lengths of setae: vi 64, si 105, se 90, c1 60, c2 84, d1 69, d2 63, e1 18, e2 42, 2 a 100, 3a 90, 4a 30.

MALE ( Fig. 28 ). Subcapitular setae m membranous with 2 tines. Genital cone slightly elongated, length/width ratio 1.7–1.8:1, with straight slanting lateral margins. Bases of setae vi situated anterior to setae ps2. Setae f1 only slightly shorter than e2. Posterior end of opisthosoma with tubercles dorsally and without tubercles ventrally. Setae 2b whip-like, much longer than 2a and 3a. Trochanter I with ventral projection, without tubercles. Measurements of holotype ( Fain & Lukoschus 1977): body, including gnathosoma, 345 long, 230 maximum wide. Aedeagus 125 long. Lengths of setae: si 46, se 105, c2 105, e1 57, e2 42, f1 39.

FEMALE TRITONYMPH. Unknown.

Type host and locality. Arvicola amphibius from Belgium ( Fain & Lukoschus 1977).

Hosts and distribution. This species is known only from the type host from France, Holland, Belgium ( Fain & Lukoschus 1977), Poland ( Haitlinger 1988), and Russia (various localities) ( Bochkov 1995).

Material examined. Arvicola amphibius —Male holotype ( IRSNB) BELGIUM: Heer Agimont, September 1967, coll. unknown; 1 female paratypes ( ZISP), HOLLAND: Hamert , 24 July 1972, coll. F. Lukoschus ; 3 males, 4 females, RUSSIA: Chuvashiya, Vetluga River , 22 August 1965, coll. M. Tikhvinskaya ; 9 males, 34 females, RUSSIA: Tatarstan, Kovalevskoe Lake, Stolbishchi , 30 May 1966, coll. M. Tikhvinskaya ; 7 males, 8 females, RUSSIA: Chelyabinsk Prov., near Shugunyak Lake , June 1975, coll. E. Dubinina.

Type deposition. Radfordia arvicolae —IRSNB, male holotype (examined).

Figures

FIGURE 27. Radfordia (M.) arvicolae Fain and Lukoschus, 1977, female. A, dorsal view; B, ventral view; C, seta m; D, vulvar region. Scale bars: A, B = 100 µm; C, D = 50 µm.

FIGURE 28. Radfordia (M.) arvicolae Fain and Lukoschus, 1977, male. A, dorsal view; B, ventral view; C, seta m;D, genital cone. Scale bars: A, B = 100 µm; C, D, E = 50 µm.