Philopterus sinensis, Gustafsson & Najer & Zou & Bush, 2022

Gustafsson, Daniel R., Najer, Tomas, Zou, Fasheng & Bush, Sarah E., 2022, New species of Philopterus Nitzsch, 1818 (Ischnocera: Philopteridae), with notes on Cypseloecus Conci, 1941, European Journal of Taxonomy 790 (1), pp. 1-52 : 20-23

publication ID	https://doi.org/ 10.5852/ejt.2022.790.1641
publication LSID	lsid:zoobank.org:pub:E3ED109B-70C8-414D-A245-6E3590C9E5B5
DOI	https://doi.org/10.5281/zenodo.6304089
persistent identifier	https://treatment.plazi.org/id/B2FE927B-B909-4E22-B95C-4A510355A188
taxon LSID	lsid:zoobank.org:act:B2FE927B-B909-4E22-B95C-4A510355A188
treatment provided by	Felipe
scientific name	Philopterus sinensis
status	sp. nov.

Treatment

Philopterus sinensis sp. nov.

urn:lsid:zoobank.org:act:B2FE927B-B909-4E22-B95C-4A510355A188

Figs 19–24 View Figs 19–20 View Figs 21–24 ; Tables 2–5 View Table 2

Diagnosis

Philopterus sinensis sp. nov. does not appear to be morphologically close to any other known species of the genus, but is somewhat similar to P. trepostephanus sp. nov., with which it shares the following characters: mts1 relatively short in male ( Figs 19 View Figs 19–20 , 25 View Fig ), but longer in female ( Figs 20 View Figs 19–20 , 26 View Fig ); gonopore with postero-lateral bulges, each of which is associated with 2 microsetae ( Figs 23 View Figs 21–24 , 29 View Figs 27–30 ); female genital setae displaced anteriorly from vulval margin ( Figs 24 View Figs 21–24 , 30 View Figs 27–30 ), particularly the more median setae; abdominal segment III without ps in both sexes ( Figs 19–20 View Figs 19–20 , 25–26 View Fig View Fig ).

These two species can be separated by the following characters: head sensillus s4 present in P. trepostephanus sp. nov. ( Fig. 27 View Figs 27–30 ), but absent in P. sinensis sp. nov. ( Fig. 21 View Figs 21–24 ); female subgenital plate with flattened posterior margin in P. sinensis sp. nov. ( Fig. 24 View Figs 21–24 ), but with bulging posterior margin in P. trepostephanus sp. nov. ( Fig. 30 View Figs 27–30 ); male mesosome with extensive ventral plate in P. trepostephanus sp. nov. ( Fig. 29 View Figs 27–30 ), but without such a plate in P. sinensis sp. nov. ( Fig. 23 View Figs 21–24 ); central sternal plates present on abdominal segments II–VI in P. sinensis sp. nov. ( Fig. 19 View Figs 19–20 ), but only on segment VI in P. trepostephanus sp. nov. ( Fig. 25 View Fig ); male subgenital plate with deep indentation posterior to setae, and with small accessory plate inside this indentation, in P. trepostephanus sp. nov. ( Fig. 25 View Fig ), but without such an indentation or plate in P. sinensis sp. nov. ( Fig. 19 View Figs 19–20 ).

Etymology

The specific epithet is derived from the type locality.

Material examined

Holotype CHINA • ♂; Guanxi Province , Jingxin County; 5 Oct. 2004; S.E. Bush leg.; ex Hemipus picatus capitalis; “ ATP-2004-161 , P-559 ”; NHMUK.

Paratype CHINA • 1 ♀; same collection data as for holotype; NHMUK .

Type host

Hemipus picatus capitalis (Horsfield, 1840) – bar-winged flycatcher-shrike (Vangidae).

Description

Head shape and chaetotaxy as in Fig. 21 View Figs 21–24 , preantennal area wide. Hyaline margin broad, not extending laterally beyond marginal carina, shallowly indented medianly. Dorsal anterior plate almost square, with broad, blunt posterior extension. Ventral anterior plate near-rectangular, wide and short, with slightly concave anterior margin. Coni small, curved slightly anteriorly. Gular plate small, irregular. Thoracic and abdominal segments as in Figs 19–20 View Figs 19–20 . Measurements as in Table 5 View Table 5 .

Male

Thoracic and abdominal chaetotaxy as in Fig. 19 View Figs 19–20 and Tables 2–4 View Table 2 . Abdominal segment II without central sternal plate but with lateral accessory plates; segments III–V with small to wide central sternal plates and lateral accessory plate on each side; segment VI with wide central sternal plate fused to lateral accessory plates. Subgenital plate broad, lateral notches small, lateral sternal plate of segment IX+X fused to subgenital plate. Basal apodeme broad ( Figs 22–23 View Figs 21–24 ), constricted in distal half. Mesosomal thickening oblong, irregular; 3 microsetae on each side of mesosome. Gonopore with convergent anterior margin and bulbous distal extensions ( Fig. 23 View Figs 21–24 ), 2 sensilla on each side of gonopore. Parameres fused to basal apodeme, long, slender; pst1–2 as in Figs 22–23 View Figs 21–24 .

Female

Thoracic and abdominal chaetotaxy as in Fig. 20 View Figs 19–20 and Tables 2–4 View Table 2 . Central sternal plates absent, lateral accessory plates present on segments II–VI. Subgenital plate and vulval margin as in Fig. 24 View Figs 21–24 , chaetotaxy as in Fig. 24 View Figs 21–24 and Table 3. Subvulval plates partially obscured by gut content, but appear to be broad, blunt distally.