Picobia schmidti, Glowska, Eliza & Milensky, Christopher M., 2014

Glowska, Eliza & Milensky, Christopher M., 2014, New species of the genus Picobia (Cheyletoidea: Syringophilidae) parasitizing tyrannid birds (Passeriformes: Tyrannidae), Zootaxa 3821 (3), pp. 373-383: 378

publication ID

http://dx.doi.org/10.11646/zootaxa.3821.3.6

publication LSID

lsid:zoobank.org:pub:E3F86DF9-B80E-43AE-B816-AAC7B787FD0F

DOI

http://doi.org/10.5281/zenodo.3506585

persistent identifier

http://treatment.plazi.org/id/C42B87E2-FF87-FFDB-FF0D-FF7C9CADF9F6

treatment provided by

Plazi

scientific name

Picobia schmidti
status

sp. nov.

Picobia schmidti  sp. nov.

( Figs. 9 –12View FIGURES 9 – 12, 19View FIGURES 17 – 20, 23View FIGURES 21 – 24)

PHYSOGASTRIC FEMALE (holotype). Total body length 670 (500–670 in 5 paratypes). Gnathosoma  . Hypostomal apex tapering. Infracapitulum punctate. Each medial branch of peritremes with 5–6 chambers, each lateral branch with about 5 chambers (borders between chambers poorly visible). Stylophore rounded posteriorly, 115 (115–130) long, punctate in anterior part. Idiosoma  . Propodonotal shield represented by 2 narrow apunctate sclerites bearing bases of setae ve and si. Setae ve bases situated anterior to vi. Length ratio of setae vi: ve: si 1–1.3: 1: 4. Bases of setae c 1 and se situated at same transverse level. Hysteronotal shield absent. Setae d 1 bases situated closer to setae d 2 than e 2 bases. Length ratio of setae d 1: d 2: e 2 1.3 –1.5: 1.5: 1. Pygidial shield strongly sclerotized, double-leaf, covered with pygidial lobes provided with 1 small spike-like outgrowth, punctate. Bases of setae f 1 covered by lobes, f 2 situated beyond lobes ( Figs. 19View FIGURES 17 – 20, 23View FIGURES 21 – 24). Lengths ratios of setae f 1: f 2 1: 1.8–2.3, h 1: h 2 1: 6, f 1: h 1 1: 1–1.5, f 2: h 2 1: 2.9. Aggenital setae ag 1 situated anterior to ag 2, ag 2 anterior to ag 3. Length ratio of ag 1: ag 2: ag 3 1.2–1.8: 1: 1.7–2.1. Pseudanal setae ps 1 and ps 2 subequal in length. Setae g filiform, situated on triangular outgrowths of genital lobes. Legs. All coxal fields strongly sclerotized, punctate. Antaxial and paraxial members of claws pair III and IV unequal in size and shape. Setae tc’ and tc” III –IV subequal in length. Lengths of setae: vi 35 (35–45), ve 30 (25–35), si 120 (115), c 2 135 (130), se (130–145), c 1 135 (160), d 2 135 (125–145), d 1 120 (145), e 2 90 (80–95), f 1 35 (30–40), f 2 80 (65–70), h 1 (30–45), h 2 (185–205), ag 1 80 (55–75), ag 2 45 (45–70), ag 3 95 (85–105), g 1 (45–60), ps 1 (20–25), ps 2 (20–25), tc’ (45–55), tc” (45–55), lR’III 20 (25), lR’IV 20 (25), 3 c 65 (60), 4 b 20, 4c 70 (70).

MALE: Unknown.

Type material. Female holotype and 5 female paratypes (physogastric forms) from quills of body feathers of Lophotriccus pileatus (Tschudi)  ( USNM 643873) ( Passeriformes  : Tyrannidae  ), PERU: Tumbes, El Caucho Biological Station, 8 June 2009, coll. B. K. Schmidt (mites sampled by E. Glowska).

Additional material. Five females (physogastric forms) from quills of body feathers of Hemitriccus margaritaceiventer (Orbigny and Lafresnaye)  ( USNM 639393) ( Passeriformes  : Tyrannidae  ), GUYANA: Cuyuni- Mazaruni, Paruima, ca. 19 km N, at Mt. Holitipu, 19 February 2007, coll. B. K. Schmidt (mites sampled by E. Glowska).

Material deposition. Female holotype, 2 female paratypes and 3 females from L. pileatus  are deposited in the USNM, 2 female paratypes and 2 females from H. margaritaceiventer  - in the AMU.

Etymology. This species is named in honor of the collector of the host specimens, Brian K. Schmidt.

Differential diagnosis. Picobia schmidti  sp. nov. is most similar to P. myiopagi  sp. nov. In females of both species the stylophore is rounded posteriorly and punctated in the anterior part, the propodonotal shield is represented by two punctate narrow sclerites bearing bases of setae ve and si, setae ve bases are situated anterior to vi, the pygidial shield is double-leaf, covered with lobes. Females of P. schmidti  are distinguishable from P. myiopagi  by the distal part of the pygidial lobes provided with one tiny, sharp spine ( Figs. 19View FIGURES 17 – 20, 23View FIGURES 21 – 24) and by the length of setae vi 30–45, si 115–120, c 2 130–135, se 130–145 and ag 3 85–105. In females of P. myiopagi  the pygidial lobes are provided with one large strongly sclerotized spike-shaped outgrowth ( Figs. 20View FIGURES 17 – 20, 24View FIGURES 21 – 24) and the lengths of setae are vi 15–25, si 145–180, c 2 160–180, se 160–185 and ag 3 120–150.

USNM

Smithsonian Institution, National Museum of Natural History