Picobia sayornis, Glowska, Eliza, 2014

Glowska, Eliza, 2014, New quill mites (Cheyletoidea: Syringophilidae) parasitizing tyrannid birds (Passeriformes: Tyrannidae) in Peru, Zootaxa 3814 (1), pp. 139-145 : 140

publication ID

http://dx.doi.org/10.11646/zootaxa.3814.1.9

publication LSID

lsid:zoobank.org:pub:3A448A89-CF70-4981-A677-3A137AB26494

DOI

http://doi.org/10.5281/zenodo.6135403

persistent identifier

http://treatment.plazi.org/id/E9038796-681F-FF8B-FF3F-FD129D812576

treatment provided by

Plazi

scientific name

Picobia sayornis
status

sp. nov.

Picobia sayornis   sp. nov.

( Figs. 1–5 View FIGURES 1 – 5 )

FEMALE. Total body length 680. Gnathosoma   . Infracapitulum punctate. Hypostomal apex with blunt-ended, small protuberances. Each median branch of peritremes with 7 chambers, in lateral branches borders between chambers invisible. Podomers of palp densely punctate. Idiosoma   . Propodonotal shield represented by 2 punctate, saber-like lateral sclerites bearing bases of setae ve and si. Bases of setae ve situated anterior to vi bases. Length ratio of setae vi:ve:si 1: 1.3: 4.7–5.9. Hysteronotal shield absent. Bases of setae d 1 situated equidistant to d 2 and e 2. Pygidial shield double-leaf, bearing bases of setae f 1 and f 2, densely punctate. Length ratio of f 1: f 2 about 1: 1.3. Agenital setae ag 1 anterior to ag 2, ag 2 anterior to ag 3. Bases of setae ag 2 situated on genital lobes. Length ratio of ag 1: ag 2: ag 3 1.7: 1: 2.4. Genital setae g filiform, situated on triangular outgrowth of genital lobes. Pseudanal setae ps 1 and ps 2 subequal in length. Setae g 1.8–2 times longer than ps1, 2. Legs. Coxal fields of legs I–II punctuate, III–IV apunctate. Setae 3 c 3 times longer than 3 b. Setae tc’ and tc” of tarsi III–IV equal in length. Antaxial and paraxial members of claw pairs III–IV unequal in size and shape. Lengths of setae: vi 30 (35), ve 40 (45), si 190 (165), c 2 180 (165), se 185 (190), c 1 (205), d 2 180 (190), d 1 185 (195), e 2 135 (130), f 1 65, f 2 105, h 1 55 (45), h 2 (245), ag 1 100 (100), ag 2 60 (65), ag 3 155 (145), g 1 70 (70), ps 1 30 (40), ps 2 35 (40), tc’ 65, tc” 65, l’R’III 30 (20), l’R’IV 20 (25), 3 b 30 (30), 3 c 90 (95), 4 b 30, 4c 105.

MALE. Unknown.

Etymology. The specific epithet derives from the generic name of the host.

Type material. Female holotype and 3 female paratypes from quill of body feathers of the black phoebe Sayornis   nigricans (Swainson) ( Passeriformes   : Tyrannidae   ) ( USNM 643863) PERU: Tumbes, El Caucho Biological Station, 6 June 2009, coll. B.K. Schmidt, mites removed by E. Glowska.

Type deposition. Holotype female and 1 female paratype are deposited in the USNM, 2 female paratypes in the AMU.

Differential diagnosis. This new species is most similar to Picobia galerida Skoracki   described from Galerida   cristata (L.) ( Passeriformes   : Alaudidae   ) from Poland ( Skoracki 2011). In females of both species, the hypostomal apex bears the blunt-ended protuberances, bases of setae ve are situated anterior to vi, the propodonotal shield is represented by two punctate sabre-like sclerites, the hysteronotal shield is absent, setae f 1 and f 2 are similar in the length, and bases of setae ag 1 set anterior to ag 2. This new species differs from P. galerida   by the size of propodonotal shield, bearing bases of setae ve and si, the double-leaf pygidial shield, the presence of heavily overgrown genital lobes and setae h 2 about five times longer than h 1. In females of P. galerida   , the propodonotal shield bears bases of setae ve, si and se, the pygidial shield is divided, the genital lobes are small, setae h 1 and h 2 are equal in the length (295).

USNM

Smithsonian Institution, National Museum of Natural History