Syringophiloidus sporophila, Skoracki, 2017

Skoracki, Maciej, 2017, Quill mites (Acariformes: Syringophilidae) associated with birds of Mexico, Zootaxa 4282 (1), pp. 179-191 : 184-186

Syringophiloidus sporophila sp. nov.

( Figs. 4 D–F and 5)

Description. Female, holotype. Total body length 680 (615–700 in 8 paratypes). Gnathosoma . Infracapitulum densely punctate. Stylophore apunctate, 160 (160–165) long. Each medial branch of peritremes with 3 bead-like chambers, each lateral branch with 8 chambers ( Fig. 4 D). Idiosoma . Propodonotal shield well sclerotized, densely punctate, anterior margin rounded, setae vi, ve, si, se, and c1 situated on this shield. All propodonotal setae thick, enlarged basally, distinctly serrate ( Fig. 4 F). Length ratio of setae vi: ve: si 1:1.2–1.6:4.3–4.6. Bases of setae c1 and se situated at same transverse level. Hysteronotal shield fused to pygidial shield, weakly sclerotized in medial part, densely punctate in anterior and posterior parts. Setae d1, d2, and e2 subequal in length. Setae f1 and h1 subequal in length. Setae ps2 1.3 times longer than ps1. Genital setae g1 and g2 equal in length. Genital plate present. Length ratio of setae ag1: ag2: ag3 1.2:1:1.4. All coxal fields densely punctate. Legs. Fan-like setae p' and p" of legs III and IV with 5–7 tines ( Fig. 4 E). Setae tc" of legs III and IV 1.4–1.5 times longer than tc'III–IV. Setae l'RIII 1.6–1.7 times longer than l'RIV. Setae 3c 2.4–2.7 times longer than 3b. Lengths of setae: vi 30 (25–30), ve 40 (35–40), si 125 (105–125), se 180 (180–205), c1 190 (185–205), c2 185 (175–190), d1 175 (165–175), d2 165 (165–170), e2 180 (165–185), f1 30 (30), f2 240 (240), h1 30 (30), h2 335 (300–340), ps1 15 (15), ps2 20 (20), g1 30 (30–35), g2 30 (25–30), ag1 155 (125–140), ag2 125 (120), ag3 180 (165–180), l'RIII 50 (45–55), l'RIV 30 (25–30), 3b 40 (40– 50), 3c 95 (95–105), tc'III– IV 50 (45–50), tc" III–IV 70 (70–80).

MALE. Unknown.

Type material. Female holotype and 8 female paratypes from Sporophila torqueola ( Bonaparte ) ( Passeriformes : Thraupidae ), MEXICO: Veracruz, Los Tuxtlas, 6 May 2008, coll. S.V. Mironov (SVM 08-0506-1/ 4).

Types deposition. Holotype is deposited in the UNAM, paratypes in AMU, UNAM and ZISP.

Differential diagnosis. This new species belongs to the minor species-group and is morphologically similar to S. serini Bochkov, Fain and Skoracki, 2004 , described from Serinus mozambicus (St. Muller) from Central Africa (Bochkov et al. 2004). In females of both species, the propodonotal and the hysteronotal shields are covered with minute punctuations; dorsal idiosomal setae are thick, enlarged basally and distinctly serrate; setae si are more than 2.5 times longer than vi; and the hysteronotal shield is fused to the pygidial shield. Both species can be easily distinguished by the number of chambers in each branch of the peritremes: in females of S. sporophila , each medial branch has 4 chambers and each lateral branch has 7 chambers (vs. 8 and 10–11, respectively in S. serini ).

Etymology. The specific epithet is taken from the generic name of the host.

Figures

FIGURE 4. Syringophiloidus spp., female. S. cincli sp. nov. (A – C). A, peritreme; B, fan-like seta p'III; C, seta si. S. sporophila sp. nov. (D – F). D, peritreme; E, fan-like seta p'III; F, seta si.