Rafapicobia milenskyi, Glowska, Eliza & Schmidt, Brian K., 2014

Glowska, Eliza & Schmidt, Brian K., 2014, New taxa of the subfamily Picobiinae (Cheyletoidea: Syringophilidae) parasitizing antbirds and gnateaters (Passeriformes: Thamnophilidae, Conopophagidae) in Guyana, Zootaxa 3861 (2), pp. 193-200 : 198-200

Rafapicobia milenskyi sp. nov.

( Figs. 11–15 )

NON-PHYSOGASTRIC FEMALE. Total body length 430–470 in two paratypes. Gnathosoma . Hypostomal apex tapering ( Fig. 13 ). Infracapitulum apunctate. Borders between chambers in medial and lateral branches invisible ( Fig. 14 ). Stylophore 120 (115) long. Idiosoma . Propodonotal shield shirt-shaped, punctate on whole surface, bearing bases of setae vi, ve, si and se. Setae strongly knobbed. Setae vi situated anterior to ve bases. Length ratio of setae vi: ve: si 1:2–2.3:2.5–2.8. Hysteronotal shield restricted to small punctate areas bearing bases of setae d1. Length ratio of setae f1: f2 1:1, h1: h2 1:6.7, f1: h1 1:2–3.5, f2: h2 1:20–23. Length ratio of g: ag2 about 1:1–1.5. Two pairs of subequal in length pseudanal setae present. Length ratio of ag1: ag2: ag3 11.3–17:1:8.7–13. Legs. All coxal fields strongly sclerotized, I–II apunctate, III–IV sparsely punctate. Setae 3c 2.8–3 times longer than 3b. Antaxial and paraxial members of claws pairs III–IV subequal in size and shape. Setae tc” of legs III–IV 1.8–2.2 times longer than tc’. Lengths of setae: vi 20 (20), ve 40 (30–45), si 45 (50–55), c2 115 (95–130), se 90 (90), c1 170 (175–180), d2 125 (115–130), d1 105 (135), e2 140 (140), f1 15 (10–20), f2 15 (10–15), h1 30 (35), h2 235–295, ag1 170 (150–165), ag2 15 (10–15), ag3 155 (130), g 10, ps1, 2 10 (7), tc’ 30 (20), tc” 50 (45), l’RIII 20 (20), l’RIV (20), 3b 20 (25), 3c 60 (70), 4b 25, 4c 55 (80).

PHYSOGASTRIC FEMALE: as non-physogastric form, body bulb-shaped in outline.

MALE. Unknown.

Etymology. This species is named in honor of the collector of the host specimen, C. M. Milensky.

Type material. Female holotype (non-physogastric form) and 2 female paratypes (1non-physogatric females and 1 physogastric forms) from quill of body feathers of Conopophaga aurita (Gmelin) ( USNM 637100) ( Passeriformes : Conopophagidae ), GUYANA: Upper Takutu - Upper Essequibo, Upper Rewa River, August 2006, coll. C.M. Milensky.

Type deposition. Holotype female is deposited in USNM, 2 female paratypes (non-physogastric and physogastric forms) in AMU.

Differential diagnosis. This new species is most similar morphologically to Rafapicobia dendrocolaptesi Skoracki and Solarczyk, 2012 . In females of both species, the propodonotal shield is shirt-shaped, bearing bases of setae vi, ve, si and se and punctate on whole surface, the hysteronotal shields are present and restricted to the small punctate areas bearing bases of setae d1 and setae ag2 are short (10–15). Females of R. milenskyi sp. nov. differ from R. dendrocolaptesi by the length of setae si 45–55, c2 95–130, se 90, d2 115–130, f 2 10–15 and h 1 30–35. In females of R. dendrocaptesi the lengths of these setae are si 75–80, c2 155–190, se 130–140, d2 165–190, f2 100–135 and h1 10.

Figures

FIGURES 11 – 15. Rafapicobia milenskyi sp. nov., 11 — dorsal view, 12 — ventral view, 13 — hypostomal apex, 14 — peritremes, 15 — propodonotal setae ve. Scale bars: 11, 12 = 100 µm; 13 – 15 = 20 µm.