Syringophilopsis catesbyi, Skoracki & Spicer & Oconnor, 2016

Skoracki, Maciej, Spicer, Greg S. & Oconnor, Barry M., 2016, A systematiC review of the subfamily Syringophilinae (ACari: Syringophilidae) of the NearCtiC region. Part 1: quill mites assoCiated with passerines (Aves: Passeriformes), Zootaxa 4084 (4), pp. 451-494 : 470-473

Syringophilopsis catesbyi sp. nov.

( Figs. 7A, B and 8A–F )

Description. FEMALE, holotype. Total body length 1,025 (1,000–1,040 in 5 paratypes). Gnathosoma . Hypostomal apex with 1 pair of minute protuberances. Infracapitulum apunctate. Stylophore apunctate, 235 (235) long. Each medial branch of peritremes with 3 chambers, each lateral branch with 17–18 chambers. Idiosoma . Propodonotal shield well sclerotized, anterior margin flat, lightly sculptured laterally, bearing bases of setae vi, ve and si. Length ratio of setae vi: ve: si 1:1.5–1.6:3.1–3.6. Setae c1 situated slightly posterior to level of setae se. Setae c2 situated posterior to level of setae si. Hysteronotal shield reduced to 2 small, apunctate shields surrounding bases of setae d1. Pygidial shield apunctate with distinct rounded anterior margin. Both pairs of pseudanal setae equal in length. Both pairs of genital setae equal in length and several times shorter than agenital setae ag1–3. Length ratio of setae ag1: ag2: ag3 1:1:1.4. Coxal fields I–IV punctate. Setae 3b and 3c subequal in length. Legs. Fan-like setae p' and p" of legs III and IV with 13–14 tines. Lengths of setae: vi (105), ve (160–175), si (330–390), se 375 (375–380), c1 (410), c2 430 (370–420), d1 415 (400–415), d2 330 (330), e2 405 (380–400), f1 460, f2 435 (400–440), h1 370, h2 450 (430–480), ag1 235 (230), ag2 245 (230–240), ag3 340 (305–345), g1 and g2 50 (50– 55), ps1 and ps2 40 (35–40), l'RIII 45 (40–45).

MALE. Total body length 655–690 in 2 paratypes. Gnathosoma . Stylophore apunctate, striated, 185–190 long. Idiosoma . Propodonotal shield with concave anterior, posterior and lateral margins, bearing bases of setae vi, ve, si and c1 sparsely punctate near bases of setae ve and si. Length ratio of setae vi: ve: si 1:1.5:2.8–3.2. Setae c1 situated distinctly posterior to level of setae se. Setae c2 situated posterior to level of setae si. Hysteronotal shield not fused to pygidial shield, divided longitudinally, each of them bearing bases of setae d1, setae e2 on or near this shield. Setae d1, d2 and e2 subequal in length. Pygidial shield with indistinct anterior margin, weakly sclerotized in medial part. Lengths of setae: vi 40, ve 50–60, si 160–175, se 150–190, c1 170–210, c2 190–220, d 1 25–30, d2 25, e 2 25 – 30, f2 25.

Type material. Female holotype, 7 female and 2 male paratypes ( FMNH uncatalogued) from primary quill of Vireo olivaceus (Linnaeus) (Vireonidae) , USA: Florida, Leon Co., 15 April 1961, coll. J. B. Kethley.

Type deposition. All type material in FMNH, except 1 female and 1 male paratypes in AMU.

Differential diagnosis. S. catesbyi sp. nov. is morphologically similar to S. kristini . In females of both species, the hypostomal apex is ornamented by one pair of the protuberances; two hysteronotal shields are present; agenital setae ag2 are more than four times longer than genital setae g1, and setae vi are shorter than 160. This new species differs from S. kristini by the following features: in females of S. catesbyi , each medial branch of the peritremes has three chambers, each lateral branch has 17–18 chambers, and genital setae g1 and g2 are 50–55 long. In females of S. kristini , each medial branch of the peritremes has 4–6 chambers, each lateral branch has 11–15 chambers; genital setae g1 are 70–80 long, and setae g2 are 80–125 long.

Etymology. This species is named in the honor of English naturalist—Mark Catesby (1682–1749), an author of the first published account of the fauna of North America (Natural History of Carolina , Florida and the Bahama Islands).

Figures

FIGURE 7 A, B. Syringophilopsis catesbyi sp. nov., female. A, dorsal view; B, ventral view.

FIGURE 8 A – F. Syringophilopsis catesbyi sp. nov., female (A – E). A, hypostomal apex; B, peritreme; C, solenidia of leg I; D, fan-like seta p'III; E, hysteronotal shield. Male (F). F, dorsal view. Scale bars: A – E = 20 µm, F = 100 µm.