Picobia magellani

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: 43

publication ID

http://doi.org/10.11646/zootaxa.4113.1.1

publication LSID

lsid:zoobank.org:pub:8B8CDC5A-304F-407F-A06F-F350F916DCD1

persistent identifier

http://treatment.plazi.org/id/58448787-A532-3F1E-8EF3-FC14FE2859F4

treatment provided by

Plazi

scientific name

Picobia magellani
status

sp. nov.

Picobia magellani  sp. nov.

( Figs. 30View FIGURE 30 and 31View FIGURE 31)

Description. FEMALE NPF (holotype). Gnathosoma  . Hypostomal apex tapering. Infracapitulum and stylophore punctate. Movable cheliceral digit edentate on proximal end. Each medial branch of peritremes with 5–7 chambers, each lateral branch with ill-visible chambers. Idiosoma  . Propodonotal shield absent. Setae vi situated distinctly posterior to level of setae ve. Setae se and c 1 situated at same transverse level. Setae vi, ve and si lightly beaded. Pygidial shield well developed, with vertical furrow, double-leaf, apunctate. Setae ag 2 situated posterolateral to ag 1. Large, punctate genital plate bearing setae ag 1–3. Setae g 1 filiform, situated on sharp-ended genital lobes. All coxal fields punctate. Legs. Paraxial claws of legs III and IV thiner than antaxial claws III –IV. Solenidia σ on genua I setiform. Mesurements. Total body length 495. Length of stylophore 125. Lengths of setae: vi 115, ve 115, si 170, se 180, c 1 170, c 2 180, d 1 170, d 2 170, e 2 100, f 1 55, f 2 60, h 1 55, h 2 265, ag 1 60, ag 2 35, ag 3 80, g 1 50, ps 1 25, ps 2 30, tc’III –IV and tc” III –IV 55. Length ratios of setae: vi: ve: si 1: 1: 1.5, d 2: e 2 1.7: 1, f 1: f 2 1: 1, f 1: h 1 1: 1, f 2: h 2 1: 4.4, h 1: h 2 1: 4.8, ag 1:ag 2:ag 3 1.7: 1: 2.3, g 1: ps 2: ps 1 2: 1.2: 1, tc’III –IV: tc” III –IV 1: 1.

FEMALE PF (7 paratypes). Total body length 745–795.

MALE. Unknown.

Type material. Female holotype (NPF) and 7 female (PF) paratypes from Scytalopus magellanicus (Gmelin)  ( Passeriformes  : Rhinocryptidae  ), COLOMBIA: Bogota, no other data.

Type deposition. All type material is deposited in the AMU, except 1 female (PF) paratype in ZSMAbout ZSM and 1 female (PF) paratype in ZISPAbout ZISP.

Differential diagnosis. Picobia magellani  sp. nov. is morphologically most simillar to P. schmidti Glowska and Milensky, 2014  . In females of both species, the hypostomal apex is tapering; the lateral branches of the peritremes are with ill-visible chambers; setae vi are situated distinctly posterior to the level of setae ve; the pygidial shield is double-leaf, each with 1 spin-like outhgrowth; setae ag 2 are situated posterolateral to ag 1. This new species differs from P. schmidti  as follow: in females of P. m a g e l l a n i, the propodonotal shield is absent; the length ratios of setae ve: si and f 1: f 2 are 1: 1.5 and 1: 1. In females of P. schmidti  , the lateral propodonotal shields are present, each bearing bases of setae ve and si; the length ratios of setae ve: si and f 1: f 2 are 1: 4 and 1: 1.8–2.3.

Etymology. The name of this species is derived from the specific name of the host— Scytalopus magellanicus  , and is a noun in apposition.

ZSM

Bavarian State Collection of Zoology

ZISP

Zoological Institute, Russian Academy of Sciences