Mites of the subgenus Microtimyobia (Acariformes: Myobiidae: Radfordia) and their host-parasite relationships with cricetid rodents (Cricetidae) 2954 Author Bochkov, Andre V. text Zootaxa 2011 2011-07-08 2954 1 1 86 https://biotaxa.org/Zootaxa/article/view/zootaxa.2954.1.1 journal article 10.11646/zootaxa.2954.1.1 1175­5334 5282049 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. FIGURE 43. Radfordia (M.) zibethicalis ( Radford, 1936 ) , male. A, dorsal view; B, ventral view. FIGURE 44. Radfordia (M.) zibethicalis ( Radford, 1936 ) , details. A, seta m of female, B, vulvar region, C, seta m of male; D, genital cone. 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. 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).