Radfordia (Microtimyobia) alticolae Bochkov, 1995

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 : 26-28

4. Radfordia (Microtimyobia) alticolae Bochkov, 1995

( Figs. 14–17 )

Radfordia (Microtimyobia) alticolae Bochkov, 1995: 481 , figs. 1, 2

Diagnosis. FEMALE ( Figs. 14 , 16 ). Subcapitular setae m with 2 tines. Setae vi distinctly wider than e2. Setae e1 and f1 narrow lanceolate. Distances c1-d1 and d1-d2 subequal. Vulvar region distinctly ornamented. Setae ps3 distinctly developed, slightly curved. Setae ag2 at least twice longer than ag1. Setae 1b and 1d distinctly thickened, about 2 times thicker and longer than 1a. Setae 2a and 3a whip-like, much longer than 2b. Trochanter I without ventral projection, covered ventrally by tubercles. Measurements (7 paratypes): body, including gnathosoma, 330– 420 long, 195–230 maximum wide. Lengths of setae: vi 45–50, ve 80–90, si 100–125, se 65–80, c1 55–60, c2 60– 70, d1 55–60, d2 60–65, e1 and f1 24–27, e2 35 –47, 2a 78–85, 3a 80–90, 4a 30–45.

MALE ( Figs. 15 , 16 ). Subcapitular setae m membranous lanceolate. Genital cone slightly elongated, length/ width ratio 1.5–1.7:1, with straight lateral margins. Bases of setae vi situated anterior to setae ps2. Setae f1 1.3–1.4 times shorter than e2. Posterior end of opisthosoma with tubercles. Setae 2a whip-like, much longer than 2b. Trochanter I without ventral projection, covered by tubercles. Measurements of holotype: body, including gnathosoma, 300 long, 175 maximum wide. Aedeagus 135 long. Lengths of setae: vi 15, ve 70, si 22, se 78, c2 80, e1 65, e2 30, f1 22, 2a 76, 3a 70, 4a 30.

FEMALE TRITONYMPH ( Fig. 17 ). Setae f2 and h2 stick-like, other dorsal idiosomal setae narrow lanceolate. Setae 3a and 4a highly variable in lenght, 10–120 long. Tarsus IV with 4 setae.

Type host and locality. Alticola argentatus from Kirghizia ( Bochkov 1995).

Hosts and distribution. This species is known from voles of the genus Alticola . Dusbabek & Daniel (1975) recorded R. lemnina from Alticola roylei from Nepal, however, based on measurements provided in their work these mites should be referred to R. alticolae .

It was recorded from:

Alticola argentatus from Kirghizia ( Bochkov 1995);

Alticola tuvinicus (new host) from Russia (Tuva);

Alticola strelzowi (new host) from Russia (Tuva) and Kazakhstan;

Alticola semicanus (new host) from Russia (Tuva);

Alticola roylei from Nepal ( Dusbabek & Daniel 1975).

Material examined. Alticola argentatus —male holotype ( ZISP T-My-3), 1 male and 7 female paratypes, KIRGHIZIA: near Chatyr-Kul’ Lake , 18 July 1990, coll. A. Bochkov ; 1 male paratype, KIRGHIZIA: Bormoldoy Mountain ridge, 22 August 1992, coll. P. Chirov ; 9 males, 15 females, 6 female TN (1 pharate), and 2 male TN ( AVB 09-1201 - 011 ), KIRGHIZIA: Kirghizskiy Mountain Ridge , Sukhuluk, 17 September 1998, coll. A. Stekolnikov ; 8 female TN (1 pharate) ( AVB 09-1201 - 010 ), KIRGHIZIA: Kirghizskiy Mountain Ridge, Ala- Archa, 11 September 1998, coll. A. Stekolnikov.

Alticola tuvinicus — 1 male, 1 female, 10 female TN (1 pharate), 5 male TN (2 pharate) ( AVB 09-1201 - 009 ), RUSSIA: Tuva, Erzinskiy Distr., Tes-Khem River , 50º19'42"N, 95º04'04"E, 12 September 2009, coll. A. Abramov.

Alticola strelzowi — 1 female, 1 female TN, and 5 male TN (2 pharate) ( AVB 09-1201 - 12 ), RUSSIA: Tuva, Mongun-Tanginskiy Distr., Khindiktig-Khol’ Lake, 50°19'23"N, 89°47'54"E, 13 August 2009, coll. A. Abramov (AA #32); 1 pharate male TN ( AVB 09-1201 - 014 ), RUSSIA: Tuva, Mongun-Tanginskiy Distr. , Mugur-Aksy , 50°16'23"N, 090°40'05"E, 18 August 2009, coll. A. Abramov (AA #219) ; 1 female and 1 male TN ( AVB 09-1201 - 013 ), RUSSIA: Tuva, Mongun-Tanginskiy Distr., Talayty River , 50°10'42"N, 90°08'00"E, 21 August 2009, coll. A. Abramov (AA #270); 1 pharate female TN and 2 male TN ( AVB 09-1201 - 015 ), (ZMM S. 129348), KAZAKH- STAN: Dzhiltau, 1937, other data unknown .

Alticola semicanus — 2 males, 2 females, 2 female TN, and 1 male TN ( AVB 08-1809 - 003 ) ( ZISP 76778 ), RUSSIA: Tuva, Erzinskiy Distr., Bora-Tayga , 30 November 1989 .

Type deposition. Radfordia alticolae —ZISP, female holotype (T-My-3) (examined).

Figures

FIGURE 14. Radfordia (M.) alticolae Bochkov, 1995 from Alticola argentatus, female. A, dorsal view; B, ventral view.

FIGURE 15. Radfordia (M.) alticolae Bochkov, 1995 from Alticola argentatus, male. A, dorsal view; B, ventral view.

FIGURE 16. Radfordia (M.) alticolae Bochkov, 1995, details—vulvar region of female, genital cone of males, and setae m.

FIGURE 17. Radfordia (M.) alticolae Bochkov, 1995 from Alticola argentatus, female tritonymph. A, idiosoma in dorsal view; B, same in ventral view; C, tarsus IV in ventral view. Scale bars: A, B = 100 µm; C = 50 µm.