Krantziaulonastus oryzivorus, Skoracki, 2011

Skoracki, Maciej, 2011, Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840, Zootaxa 2840 (1), pp. 1-414 : 131-133

Krantziaulonastus oryzivorus sp. nov.

( Figs. 95 and 96 )

Type host: Lonchura oryzivora (Linnaeus) ( Passeriformes : Estrildidae ). Type locality: Japan.

Description. FEMALE (holotype). Total body length 470 (455–470 in 2 paratypes). Gnathosoma . Infracapitulum sparsely punctate. Each medial branch with 2 chambers, each lateral branches with 3–4 chambers, borders between chambers clearly visible. Movable cheliceral digit 80 (80) long. Stylophore apunctate, 130 (125–130) long. Idiosoma . Propodonotal shield constricted posteriorly, bearing bases of setae ve, si and c1, sparsely punctate. Setae ve and si subequal in length. The setae c1 and se subequal in length. Setae se situated slightly anterior to level of setae c1. Length ratio of setae f1: f2 1:5–6. Length ratio of aggenital setae ag1: ag2: ag3 1.5:1:1.7. The length ratio of setae d2: d1 1:1.3–1.7. Hysteronotal shield absent. Pygidial shield present, punctate, anterior margin indistinct. Both pairs of genital setae subequal in length. Genital plate absent. All coxal fields punctate. Setae 3c twice as long as 3b. Legs: Setae p’ and p” of legs III and IV with 6–7 tines. Setae tc”III–IV 1.8 times longer than tc’III–IV. Lengths of setae: ve 15 (15–20), si 15 (15–20), se 135 (135), c1 (140), c2 150 (140–150), d1 (65–70), d2 135 (120–135), e2 95 (90–105), f1 15 (15–20), f2 120 (90–105), h1 15 (15–20), h2 (235), ag1 50 (75), ag2 70 (50–60), ag3 (105), g1 and g2 25 (25), ps1 20 (20), tc’III–IV 25 (25–30), tc”III–IV 45 (45–50), 3b 20 (20), 3c 40 (40).

MALE. Unknown.

Type material. Lonchura oryzivora (Linnaeus) ( Passeriformes : Estrildidae ): female holotype and 3 female paratypes ( AMU –SYR.244) (bod.); JAPAN, no other data. Host specimen deposited in the MNHW.

Type depository. All type material deposited in the AMU .

Host range and habitat. Monoxenous species occupying quills of body feathers of Lonchura oryzivora .

Distribution. Japan.

Etymology. The name oryzivorus refers to the specific name of the host.

Differential diagnosis. This new species is similar to K. lonchurus . In females of both species, the hysteronotal shield is absent and setae d1 and d2 are unequal in the length. Females of K. oryzivorus differs from K. lonchurus by the following characters: in females of K. lonchurus , setae d1 are 4.5–6.5 times longer than d2; aggenital setae ag1 and ag2 are subequal in length or setae ag1 are slightly (1.1–1.2 times) longer than ag2 and setae tc”III– IV are 1.3 times longer than tc’III–IV. In females of K. oryzivorus , setae d1 are 1.7–2 times longer than d2; aggenital setae ag1 are 1.5 times longer than ag2 and setae tc”III–IV are 1.8 times longer than tc’III–IV.

Figures

FIGURE 95. Kranziaulonastus oryzivorus sp. nov., female. A, dorsal view; B, ventral view.

FIGURE 96. Kranziaulonastus oryzivorus sp. nov., female. A, hypostomal apex in dorsal view; B, peritremes; C, opisthosoma in ventral view; D, fan-like seta p’ of leg III. Scale bars: C = 50 µm; A, B, D = 20 µm.