Yunkeracarus muris Fain, 1957

Bochkov, Andre V., Zabludovskaya, Svetlana & Oconnor, Barry M., 2008, Phylogeny and systematics of the endoparasitic astigmatid mites (Acari: Sarcoptiformes) of mammals: families Gastronyssidae, Lemurnyssidae, and Pneumocoptidae, Zootaxa 1951 (1), pp. 1-152 : 103-104

1. Yunkeracarus muris Fain, 1957

( Figs. 52 , 53 )

Yunkeracarus muris Fain 1957b: 473 , figs. 8–12; Hyland & Clark 1959: 365; Fain 1964b: 47, figs. 5–6; Fain et a l. 1967: 80; Smith et al. 1985: 481; Zabludovskaya 1989: 64, 1990: 35.

Redescription. FEMALE (holotype from Arvicanthis niloticus ). Body, including gnathosoma, 375 long (345–380 in 3 specimens from L. striatus ), 180 wide (155–175). Propodonotal shield with widely rounded posterior margin, length 60 (48–53), maximum width 63 (65–68). Setae si 13 long (13–15), 2 times shorter than se 28 long (27–30). Distance se–se 59 (60–65), 3–4 times greater than si–si, 16 (13–17). Bursa copulatrix opening terminal or dorso-terminal in some specimens. Sternum about 20 long. Posterior projections of coxal fields I distinctly developed, about 9 long, 11 wide. Distance between distal ends of apodemes II about 35. Several weakly developed folds present ventrally on propodosoma posterior to coxal fields II. Distance 4a–4a 38 (35–40), subequal or 1.1–1.6 times greater than ps3–ps3, 33 (38–40). Alveoli of setae h1 and h3 absent. Legs III and IV subequal in length, about 135 and 145 long, respectively (excluding pretarsus). Setae cG I–II microspines, about 2 long. Setal lengths: 1a 13 (17–18), c3 14 (13–15), cp 26 (25–28), h2 130 (120–140), vF I–II about 25, mG I–II about 27, gT I–II about 4, solenidia ϕI–II about 10, ω 1 I–II about 9.

MALE (paratype from Pelomys fallax ). Body, including gnathosoma, 330 long (320 in specimen from L. striatus ), 150 wide (145). Propodonotum as in female. Propodonotal shield 66 (48) long, 59 (57) maximum wide. Setae si 9 long (10), 3 times shorter than se, 26 long (29). Distance se– s e 60 (48), 5 times greater than si–si, 9 long (9). Sternum about 15 long. Posterior projections of coxal fields I distinctly developed, about 9 long, 12 wide. Distance between distal ends of apodemes II 22 (23). Two pairs of weakly developed folds present ventrally on propodosoma posterior to coxal fields II. Aedeagus about 48 long, its posterior end situated slightly posterior to level of setae g. Length and width of postgenital shield subequal, about 35. Distance g–g 25, 2 times greater than ps3–ps3, 13. Alveoli of setae h1 and h3 absent. Legs III and IV subequal in length, about 125 and 135 long (excluding pretarsus), respectively. Setae cG I–II microspines, about 2 long. Setal lengths: 1a 13 (12), c3 11 (13), cp 20 (21), h2 120 (115), vF I–II about 22, mG I–II about 25, gT I–II about 3, solenidia ϕI–II about 9, ω 1 I–II about 9.

Type material examined. Female holotype ( MRAC 97511). 2 female paratypes ( IRSNB), and male paratype (allotype) ( MRAC 97510), and 2 female paratypes ex Arvicanthis niloticus (Desmarest) (= A. abyssinicus rubescens ) ( Muridae ), RWANDA: Butare [=Astrida], 02°35'S, 29°44'E, 14 December 1955, coll. A. Fain; 1 female paratype ( MRAC 97512), 2 female paratypes ( IRSNB), and 1 male paratype ( IRSNB) ex Pelomys fallax (Peters) (Muridae) , same locality, 11 December 1955, coll. A. Fain.

Type deposition. Holotype is deposited in MRAC.

Non-type material examined. Three females, 1 male, 3 protonymphs ( FMNH, UMMZ) ( BMOC 01- 1015-017) ex Lemniscomys striatus (L.) ( Muridae ) ( FMNH 171519), TANZANIA: Rukwa Region, Sumbawanga Dist., Mbizi Mts, Mbizi Forest Reserve, 0.5 km S, 3 km E Wipanga, 07º52'30"S, 31º40'00"E, 2300m, 22 July 2001, coll. W.T. Stanley ( WTS 4741); 2 females, 1 male, and 1 larva ( FMNH, UMMZ) ( BMOC 03-0212-044) ex Rhabdomys pumilio (Sparrman) (Muridae) ( FMNH 173905), TANZANIA: Kilimanjaro Region, Moshi Dist., Mt. Kilimanjaro, 10.5 km N, 3.5 km W Maua, 03º10'27"S, 37º26'13"E, 2900m, 2 August 2002, coll. W.T. Stanley ( WTS 5288).

Host range and distribution. This species is known from central and east African murines, Arvicanthis niloticus (type host) and Pelomys fallax from Rwanda ( Fain 1957b), Lemniscomys striatus (new record) and Rhabdomys pumilio (new record) from Tanzania.

Figures

FIGURE 52. Yunkeracarus muris Fain, 1957, female. A, dorsal view; B, ventral view; C, tarsus I in ventral view; D, same in dorsal view; E, tarsus II in ventral view; F, tarsus III in ventral view; G, tarsus IV in ventral view; H, genu I in lateral view. Scale bars: 100 µm (A, B), 50 µm (C–H).

FIGURE 53. Yunkeracarus muris Fain, 1957, male. A, gnathosoma in dorsal view; B, same in ventral view; C, chelicera in lateral view; D, fragment of propodonotum; E, opisthosoma in ventral view; F, aedeagus. Scale bars: 100 µm (D, E), 50 µm (A–C, F).