Charadriineopicobia apricaria, Skoracki & Sikora & Spicer, 2016

Skoracki, Maciej, Sikora, Bozena & Spicer, Greg S., 2016, A review of the subfamily Picobiinae Johnston and Kethley, 1973 (Acariformes: Prostigmata: Syringophilidae), Zootaxa 4113 (1), pp. 1-95 : 12-17

Charadriineopicobia apricaria sp. nov.

( Figs. 11 and 12 )

Description. FEMALE (holotype). Gnathosoma . Infracapitulum apunctate. Each medial branch of peritremes with 3 chambers, and lateral branch with 4 chambers. Stylophore densely punctate. Idiosoma . Propodonotal shield densely punctate in anterior half; 4 apunctate patches present. Setae vi, ve and si beaded. Setae c1 situated slightly anterior to level of setae se. Hysteronotal shields absent. Pygidial shield apunctate, pear-like in shape. Agenital and genital plates absent. Setae ag2 situated slightly posteromedial to setae ag3. Pseudanal setae ps1 short but not as microsetae. Coxal fields I punctate, II–IV apunctate. Legs. Claws of legs III and IV equal in size. Apodemes I without thorn-like protuberances. Measurements. Total body length 560. Length of stylophore 120. Lengths of setae: vi 25, ve 70, si 100, se 170, c1 195, c2 175, d1 140, d2 165, e2 140, f1 15, f2 30, h1 15, h2>255, ag1 100, ag2 70, ag3 135, ps1 10, 3b and 4b 25, 3c and 4c 70, tc’III–IV 40, tc”III–IV 55. Length ratios of setae: vi: ve: si 1:2.8:4, f1: f2 1:2, h1: f1 1:1, ag1: ag2: ag3 1.4:1:1.9, tc’III–IV: tc”III–IV 1:1.4, 3b: 3c 1:2.8.

MALE. Unknown.

Type material. Female holotype from Pluvialis apricaria (Linnaeus) ( Charadriiformes : Charadriidae ), FRANCE: St. Malo, 1970, no other data.

Type deposition. Holotype in AMU.

Differential diagnosis. Female of Charadriineopicobia apricaria sp. nov. differs from two other described species of this genus by the absence of the hysteronotal shields; presence of short pseudanal setae but not as miocrosetae, and by the position of agenital setae ag2 which are situated posteromedial to setae ag3. In females of Ch. calidris and Ch. leucophaeus , the hysteronotal shield is present; pseudanal setae are as microsetae and setae ag2 are situated anteromedial to setae ag3.

Etymology. The name of this species refers to specific name of the host— Pluvialis apricaria .

Figures

FIGURE 11. Charadriineopicobia apricaria sp. nov., female. A, dorsal view; B, ventral view.

FIGURE 12. Charadriineopicobia apricaria sp. nov., female. A, gnathosoma in ventral view; B, proximal end of movable cheliceral digit; C, stylophore and peritremes; D, peritremes; E, apodemes I and II; F, ventral view of tarsus III; G, propodonotal seta si; H, genito-anal region; I, solenidia of leg I. Scale bars: C, E, F = 50 µm; A, B, D, G, H = 20 µm.