Betasyringophiloidus saxicolus, Skoracki, 2011

Skoracki, Maciej, 2011, Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840, Zootaxa 2840 (1), pp. 1-414 : 90-92

Betasyringophiloidus saxicolus sp. nov.

( Figs. 62 and 63 )

Type host: Saxicola rubetra (Linnaeus) ( Passeriformes : Turdidae ). Type locality: Poland.

Description. FEMALE (holotype). Total body length 590 (570–745 in 2 paratypes). Gnathosoma . Infracapitulum densely punctate. Each medial branch of peritremes with 5 chambers, each lateral branch with 6–7 chambers. Stylophore punctate, 160 (155–160) long. Movable cheliceral digit 115 (115) long. Idiosoma . Propodonotal shield densely punctate. Length ratio of setae vi: ve: si 1:1–1.3:4.7–5.5. Setae vi and ve thin, other propodonotal setae thick, all discernibly ornamented. Hysteronotal shield fused to pygidial shield, anterior and posterior part of this fused shield densely punctate. Setae f1 and h1 subequal in length. Both genital setae subequal in length. Genital plate present, setae ag2 and ag3 situated on this plate. Length ratio of setae ag1: ag2: ag3 1:1:1.2–1.3. Coxal fields I–IV densely punctate. Setae 3c 2.4–2.6 longer than 3b. Legs. Fan-like setae p’ and p” of legs III and IV with 7 tines. Setae tc”III–IV twice as long as tc’III–IV. Lengths of setae: vi (30–35), ve 35 (35–45), si 155 (165), se 180 (180), c1 (175–180), c2 165 (170–190), d1 165 (160–180), d2 165 (160), e2 150 (150–155), f1 20 (20), f2 190 (180), h1 25 (20–25), h2 270 (260–285), ps1 10 (10–15), g1 and g2 20 (20), ag1 90 (100), ag2 90 (90–100), ag3 120 (120–130), l’RIII 50 (50–60), 3b 30 (30–35), 3c 80 (80–85), tc’III–IV 35 (35), tc”III–IV 65 (70).

MALE. Unknown.

Type material. Saxicola rubetra (Linnaeus) ( Passeriformes : Muscicapidae ): female holotype and 2 female paratypes ( AMU –SYR.236) (sec.); POLAND, Zachodniopomorskie, Weltyn , May 2001, coll. G. Kiljan.

Type deposition. All material deposited in the AMU .

Host range and habitat. Monoxenous species occupying quills of secondary feathers of Saxicola rubetra .

Distribution. Poland.

Etymology. The name saxicolus refers to the generic name of the host.

Differential diagnosis. This new species is morphologically similar to Syringophiloidus motacillae . In both species the females have branches of peritremes with no more than 12 chambers; the hysteronotal shield is fused to pygidial shield and punctate in anterior and posterior part; aggenital setae ag1 and ag2 are subequal in the length. Females of S. saxicolus are distinguished from S. motacillae by the following characters: in females of S. saxicolus , the length of setae si is 160–165; the length ratio of setae vi: si is 1:4.7–5.5; aggenital setae ag3 are slightly (1.2–1.3 times) longer than ag1. In females of S. motacillae , the length of setae si is 120–130; the length ratio of setae vi: si is 1:2–3; aggenital setae ag3 are distinctly (1.7–1.8 times) longer than ag1.

Figures

FIGURE 62. Betasyringophiloidus saxicolus sp. nov., female. A, dorsal view; B, ventral view.

FIGURE 63. Betasyringophiloidus saxicolus sp. nov., female. A, peritremes; B, propodonotal setae vi and si; C, anterior part of propodonotal shield; D, fan-like seta p’ of leg III; E, ventral view of opisthosoma. Scale bars: C, E = 50 µm; A, B, D = 20 µm.