Radfordia (Microtimyobia) arborimus Fain and Whitaker, 1975

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 : 54-57

17. Radfordia (Microtimyobia) arborimus Fain and Whitaker, 1975

( Figs. 45 , 46 )

Radfordia (Graphiurobia) arborimus Fain and Whitaker, 1975: 78 , figs. 1–4

Radfordia (Microtimyobia) arborimus, Fain & Lukoschus 1977: 93 , figs. 95, 96, 112

Diagnosis (based on description by Fain & Whitaker [1975]). FEMALE ( Fig. 45 ). Subcapitular setae m with 3 tines. Setae vi shorter and subequal in width to e2. Setae e1 and f1 narrow lanceolate. Distances c1-d1 and d1-d2 subequal. Vulvar region without ornamentation. Setae ps3 distinctly developed, slightly curved. Setae ag1 slightly shorter than ag2. Setae 1b and 1d slightly thicker than 1a. Setae 2b whip-like, much longer than 2a and 3a. Trochanter I with weakly developed ventral projection and without tubercles. Measurements of holotype ( Fain & Whitaker 1975): body, including gnathosoma, 400 long, 210 maximum wide. Lengths of setae: vi 63, ve 100, si 135, se 105, c1 63, c2 105, d1 75, d2 78, e1 54, e2 69, 2a -3a 21-24, 4a 35.

MALE ( Figs. 46 ). Subcapitular setae m membranous lanceolate, pointed apically. Genital cone slightly elongated, length/width ratio 1.5:1, with straight lateral margins without projections. Bases of setae vi situated anterior to setae ps2. Setae e2 about 2 times longer than f1. Posterior end of opisthosoma without tubercles. Setae 2b whiplike, much longer than 2a and 3a. Trochanter I not figured. Measurements of paratype ( Fain & Whitaker [1975]): body, including gnathosoma, 285 long, 160 maximum wide. Aedeagus 120 long. Lengths of setae: ve 90, se 105, c2 120.

FEMALE TRITONYMPH. Unknown.

Type host and locality. Arborimus longicaudatus from USA (Oregon) .

Hosts and distribution. No records since the original description.

Type deposition. Radfordia arborimus —USNM, female holotype (not examined).

Figures

FIGURE 45. Radfordia (M.) arborimus Fain and Whitaker, 1975, female (after Fain & Whitaker 1975 with minor modifications). A, dorsal view; B, ventral view.

FIGURE 46. Radfordia (M.) arborimus Fain and Whitaker, 1975, male (after Fain & Whitaker 1975 with minor modifications). A, dorsal view; B, ventral view; C, seta m; D, genital cone. Scale bars: A, B = 100 µm; C, D = 50 µm.