Priceiella (Thescelovora) austini Gustafsson, Clayton & Bush, 2018

Gustafsson, Daniel R., Clayton, Dale H. & Bush, Sarah E., 2018, Twelve new species of Priceiella (Phthiraptera: Ischnocera: Philopteridae) from Old World babblers, with keys to species of two subgenera and checklists of species for the genus, Zootaxa 4382 (3), pp. 401-449 : 406-409

publication ID

https://doi.org/ 10.11646/zootaxa.4382.3.1

publication LSID

lsid:zoobank.org:pub:4BE1AB50-46E7-402D-9E72-A45D78352E2B

DOI

https://doi.org/10.5281/zenodo.5995555

persistent identifier

https://treatment.plazi.org/id/0E714F31-F661-419E-9AE5-8A4D8702E451

taxon LSID

lsid:zoobank.org:act:0E714F31-F661-419E-9AE5-8A4D8702E451

treatment provided by

Plazi

scientific name

Priceiella (Thescelovora) austini Gustafsson, Clayton & Bush
status

sp. nov.

Priceiella (Thescelovora) austini Gustafsson, Clayton & Bush , new species

( Figs 8–14 View FIGURES 8–9 View FIGURES10–14 )

Type host. Pomatorhinus ruficollis intermedius Cheng 1962 —streak-breasted scimitar-babbler ( Timaliidae ).

Type locality. Shiwandashan National Park , Guangxi Province, China.

Diagnosis. Priceiella (Thescelovora) austini n. sp. is most similar to P. (T.) malacocincla (Najer & Sychra [in Najer et al.], 2014), with which it shares the following characters: lateral margins of preantennal head straight to slightly concave ( Fig. 10 View FIGURES10–14 ); proximal mesosome rounded ( Fig. 12 View FIGURES10–14 ); basal apodeme noticeably constricted at midlength ( Fig. 11 View FIGURES10–14 ). The two species can be separated on the following characters: aps present on male tergopleurites V–VII in P. (T.) austini ( Fig. 8 View FIGURES 8–9 ), but absent in P. (T.) malacocincla ; proximal mesosome broad in P. (T.) austini ( Fig. 12 View FIGURES10–14 ) but slender in P. (T.) malacocincla ; parameres parallel distally in P. (T.) malacocincla , but divergent distally in P. (T.) austini ( Fig. 11 View FIGURES10–14 ); basal apodeme widening considerably in proximal end in P. (T.) austini ( Fig. 11 View FIGURES10–14 ) but about as wide as in distal end in P. (T.) malacocincla ; male tergopleurite VIII with 2 tps on each side in P. (T.) austini ( Fig. 8 View FIGURES 8–9 ) but with 1 tps on each side in P. (T.) malacocincla . Note that both P. (T.) austini and P. (T.) malacocincla have pns and dorsal preantennal suture, but these were not illustrated in the original description of P. (T.) malacocincla (T. Najer, pers. comm.).

Description. Both sexes. Head pentagonal ( Fig. 10 View FIGURES10–14 ), frons deeply concave, lateral margins of preantennal area straight. Marginal carina deeply displaced and widened at osculum. Dorsal preantennal suture reaches dsms but not more than half-way to ads. Head chaetotaxy as in Fig. 10 View FIGURES10–14 . Coni reach to or slightly beyond distal margin of scape. Pteronotum with 5 mms on each side ( Figs 8–9 View FIGURES 8–9 ). Marginal carina and head nodi medium brown; gular plate, proepimera, metepisterna, pleural incrassations, subgenital plates and antero-lateral sections of tergopleurites pale brown; anterior sternal plates near translucent, more posterior plates progressively darker to pale brown.

Male. Abdominal chaetotaxy as in Fig. 8 View FIGURES 8–9 ; aps present on tergopleurites V–VIII. Male genitalia as in Figs 11– 13 View FIGURES10–14 . Basal apodeme constricted at mid-length, wide anteriorly ( Fig. 11 View FIGURES10–14 ). Proximal mesosome broad, gently rounded ( Fig. 12 View FIGURES10–14 ). Mesosomal lobes converge to rounded medial point distally. Lateral thickenings of lobes deeply sinuous, interrupted medially but diffuse distally. Ventral nodi with restricted rugose area; 2 ames sensilla sublaterally on each side near anterior ends of lobes; 1 pmes sensilla on each side immediately lateral to gonopore; 1 pmes microseta laterally on each side on postero-lateral margins of lobes, distal to rugose nodi. Parameral heads irregularly shaped ( Fig. 13 View FIGURES10–14 ), median section near-quadratic. Parameral blades divergent, short and widen at about mid-length; pst1 sensilla, sublateral; pst2 microseta, lateral. Measurements ex Pomatorhinus ruficollis intermedius (n = 3): TL = 1.22–1.36; HL = 0.32–0.34: HW = 0.34–0.35; PRW = 0.20; PTW = 0.30–0.31; AW = 0.41–0.45.

Female. Abdominal chaetotaxy as in Fig. 9 View FIGURES 8–9 . Antero-lateral corners of subgenital plate with slightly darker pigmentation (dotted lines in Fig. 14 View FIGURES10–14 ). Vulval margin gently rounded ( Fig. 14 View FIGURES10–14 ), with 3 slender vms and 5–8 thornlike vss on each side; 4–5 vos on each side; distal vos just anterior to vss. Measurements ex Pomatorhinus ruficollis intermedius (n = 8 except TL where n = 7): TL = 1.50–1.80; HL = 0.35–0.39; HW = 0.37–0.40; PRW = 0.21–0.23; PTW = 0.33–0.35; AW = 0.45–0.61.

Etymology. This species is named after Austin Roy Clayton, the twin son of Dale H. Clayton and Sarah E. Bush, for assistance in the collection of bird lice and other field work since he was seven years old.

Type material. Ex Pomatorhinus ruficollis intermedius : Holotype Ƌ, Shiwandashan National Park, Guanxi Province, China, 21 Apr. 2005, S.E. Bush & D.H. Clayton, host MBR-6692, louse P-913 ( NHML) . Paratypes: 2♂, 3♀, same data as holotype, host TJD-6220, lice P-918 (PIPeR) ; 1♀, same locality and collectors, 15 Apr. 2005, host TJD-6182, lice P-653 (PIPeR) ; 2♀, Jingxi County, Guangxi Province, China, 23 Sep. 2004, S.E. Bush, GC- 2004-2, P-184 (PIPeR) ; 2♀, same locality and collector, 26 Sep. 2004, AN-415, P-263 (PIPeR).

NHML

Natural History Museum, Tripoli

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