Picobia makoli, 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 : 45-47

Picobia makoli sp. nov.

( Figs. 32–34 )

Description. FEMALE NPF (holotype and 2 paratypes). Gnathosoma . Hypostomal apex tapering. Infracapitulum apunctate. Movable cheliceral digit edentate on proximal end. Each medial branch of peritremes with 12 chambers, each lateral branch with 9 ill-visible, striated chambers. Idiosoma . Two very narrow, propodonotal shields bearing setae ve, si and se, medial shield very small, pear-like, apunctate. Setae vi situated posterior to level of setae ve. Setae c1 and se situated at same transverse level. Setae vi, ve and si lightly beaded. Pygidial shield well developed, with vertical furrow, double-leaf, with minute punctions on whole surface, setae f1 situated on small sclerotised projections. Setae ag2 situated posterolateral to ag1. Large, punctate genital plate reach setae ag1, setae ag1–3 situated on margins of genital shield or in close proximity of this shield. Setae g1 hair-like, situated on blunt-ended genital lobes. Coxal fields I–II punctate. Legs. Claws of legs III–IV equal in size. Solenidia σ on genua I setiform. Measurements. Total body length 720 (650–700). Length of stylophore 215 (195–200). Lengths of setae: vi 115 (105–125), ve 115 (115–125), si 190 (170–180), se 255 (250–255), c1 250 (250–270), c2 255 (240–245), d1 250 (215–235), d2 255 (240), e2 245, f1 (80), f2 (100–105), h1 140 (150), h2 (385), ag1 165 (160–165), ag2 65 (65– 70), ag3 185 (165–180), g1 55 (55–60), ps1 50 (40–45), ps2 35 (30–35), tc’III–IV 60 (60), tc”III–IV (80). Length ratios of setae: vi:ve:si 1:1:1.4–1.7, d2: e2 1:1, f1: f2 1:1.3, f1: h1 1:1.9, f2: h2 1:3.7, h1: h2 1:2.6, ag1:ag2:ag3 2.4– 2.5:1:2.4–2.8, g1: ps1: ps2 1.6–2:1.3–1.4:1, tc’III–IV: tc”III–IV 1:1.2.

FEMALE PF (2 paratypes). Total body length, 1230.

MALE (3 paratypes). Gnathosoma . Hypostomal apex rounded. Each medial branch of peritremes with 9–10 chambers, each lateral branch with ill-visible chambers. Stylophore apunctate. Idiosoma . Propodonotal shield entire, shirt-like, punctate laterally. Bases of setae vi situated posterior to level of setae ve. Setae c1 and se situated at same transverse level. Setae vi, ve and si lightly beaded. Hysteronotal shield slightly concave on anterior and posterior margins, punctate, bearing bases of setae d1 and e2. Pygidial shield well developed, apunctate. Agenital shield entire, apunctate, bearing bases of setae ag1 on posterior margin. Legs. Solenidia σ on genua I rod-like, longer than φI. Measurements. Total body length 480–580. Length of stylophore 115. Lengths of setae: vi 60–70, ve 60–80, si 90–125, se 100–150, c1 105–145, c2 100–155, d1 10–15, d2 100–145, e2 10 –15, f2 10–15, h2 150–180, ag1 50–60, ag2 20–30, tc’III–IV and tc”III–IV 70. Length ratios of setae: vi:ve:si 1:1–1.2:1.6–1.8, d2: d1: e2 9.6:1:1, ag1: ag2 2–2.5:1.

Type material. Female holotype, 2 female (NPF), 2 female (PF) and 3 male paratypes from Xiphocolaptes promeropirhynchus (Lesson) ( Passeriformes : Furnariidae ), COLOMBIA: Leticia , 12 December 1968, coll. L. E. Orozco.

Type deposition. All type specimens in AMU .

Differential diagnosis. Picobia makoli sp. nov. is morphologically similar to above descibed species, P. magellani sp. nov. In females of both species, the hypostomal apex is tapering; the movable cheliceral digit is edentate on the proximal end; setae vi are situated posterior to the level of setae ve; setae vi, ve and si are lightly beaded; the pygidial shield is well developed and with vertical furrow; setae ag2 are situated posterolateral to ag1 and claws of legs III–IV are equal in the size. This new species differs from P. magellani as follow: in females of P. makoli , each medial branch of the peritremes has 12 chambers; the propodonotal shield is divided into two lateral and unpaired medial sclerites; genital setae are situated on blunt-ended genital lobes; the lenghts of setae h1, ag1 and ag2 are 140–150, 160–165 and 65–70 respectively; the length ratios of setae d2: e2 and f1: h1 are 1:1 and 1:1.9 respectively. In females of P. magellani , each medial branch of the peritremes has 5–7 chambers; the propodonotal shield is absent; genital setae are situated on sharp-ended genital lobes; the lenghts of setae h1, ag1 and ag2 are 55, 60 and 35 respectively; the length ratios of setae d2: e2 and f1: h1 are 1.7:1 and 1:1 respectively.

Etymology. This new species is named in honor of the great Polish acarologist—Prof. Joanna Mąkol (Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland).

Figures

FIGURE 32. Picobia makoli sp. nov., female. A, dorsal view; B, ventral view.

FIGURE 33. Picobia makoli sp. nov., female. A, hypostomal apex; B, peritreme; C, tarsus III in ventral view; D, genito-anal region; E, thorn like protuberances of apodemes I.

FIGURE 34. Picobia makoli sp. nov., male. A, dorsal view; B, hypostomal apex; C, peritremes; D, genito-anal region; E, opisthosoma in ventral view.