Philopteroides longiclypeatus Gustafsson & Najer & Zou & Bush 2022, sp. nov.
Creators: name: Gustafsson, Daniel R.
name: Najer, Tomas
name: Zou, Fasheng
name: Bush, Sarah E.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Philopteroides
Philopteroides longiclypeatus

description: Philopteroides longiclypeatus sp. nov.
urn:lsid:zoobank.org:act: 65995C7C-D0A2-40B5-8A19-A5CA73A1F2FC
Figs 118–123
Diagnosis
Philopteroides longiclypeatus sp. nov. is most similar to Philopteroides haerixos sp. nov., with which it shares the following characters: abdominal segment III without ps in both sexes (Figs 118–119, 124– 125); male sternite III with lateral accessory sternal plate present and separate from central sternal plate (Figs 118, 124); dorsal sclerotization of mesosome broad, roughly triangular (Figs 121, 127); no median dorsal ridges on distal end of basal apodeme (Figs 121, 127).
Philopteroides longiclypeatus sp. nov. can be separated from Po. haerixos sp. nov. by the following characters: head coni slender elongated in Po. longiclypeatus sp. nov. (Fig. 120), but broad bulky in Po. haerixos sp. nov. (Fig. 126); sternal plate II absent in both sexes in Po. haerixos sp. nov. (Figs 124– 125), but present in Po. longiclypeatus sp. nov. (Figs 118–119); male basal apodeme narrowing anteriorly in Po. longiclypeatus sp. nov. (Figs 121–122), but in all its length more or less equally wide in Po. haerixos sp. nov. (Figs 127–128); gonoporal complex of different structure (Figs 122, 128); female subgenital plate with elongated, slender postero-lateral extensions in Po. longiclypeatus sp. nov. (Fig. 123), but without such extensions in Po. haerixos sp. nov. (Fig. 129); mesometasternal plate absent or poorly sclerotized in Po. haerixos sp. nov. (Figs 124–125), but clearly visible in Po. longiclypeatus sp. nov. (Figs 118–119).
Etymology
The species name is derived from the Latin words ‘ longus ’ for ‘long’ and ‘ clypeus ’ for ‘shield’, referring to the long dorsal anterior plate.
Material examined
Holotype (ex Hypsipetes everetti samarensis) PHILIPPINES • ♂; Leyte Island, Mahaplag, Mount Kabalanti-am, Bulog Peak; 1 Jul. 1964; D.S. Rabor leg.; B-3553; BPBM.
Paratypes PHILIPPINES • 1 ♂; same collection data as for holotype; BPBM • 1 ♂, 3 ♀♀; same locality, collector and host as for holotype; 24 Jun. 1964; BBM-2757; BPBM • 1 ♀; Leyte Island, Mahaplag, Mount Kabalanti-am, Paniniklan; 21 Jun. 1964; N. Wilson leg,; BBM-2558; BPBM.
Type host
Hypsipetes everetti samarensis Rand & Rabor, 1959 – yellowish bulbul.
Description
Both sexes
Head shape as in Fig. 120, anterior end narrow and elongated, lateral margins of preantennal head slightly concave, frons deeply concave, with central sclerotization medianly continuous. Dorsal anterior plate with moderately concave anterior margin, convex lateral margins in anterior end, and slender posterior elongation that does not reach beyond mandibles. Ventral anterior plate elongated triangular, with concave anterior margin. Lobes of ventral carinae roughly rectangular. Head chaetotaxy as in Fig. 120. Thoracic and abdominal segments as in Figs 118–119. Tergopleurites III–VIII with small translucent fenestrae around spiracular openings; plates barely reaching ventral surface. Base pigmentation moderate yellow, only mandibles and parts of preantennal nodi and marginal carina darker.
Male
Thoracic and abdominal chaetotaxy as in Fig. 118. Metanotum with 6–7 setae on each side. Sternal plate II very small, divided medianly; sternal plate III with lateral accessory plate on each side; sternal plates IV–VI wide, without accessory plates. Subgenital plate large, with small, irregular lateral accessory plate on segment IX+X. Basal apodeme long, slender (Fig. 121), widening distally. Dorsal thickening of mesosome diffuse but broad, roughly triangular (Fig. 121). Gonopore wide, anterior margin with blunt median point (Fig. 122), distally with bilobed median processes on each side. Parameres simple (Fig. 121); 2 sensilla on lateral margin of basal paramere, and 2 sensilla on lateral margin in distal half of each paramere. Measurements as in Tables 1–2.
Female
Thoracic and abdominal chaetotaxy as in Fig. 119. Metanotum with 6–7 setae on each side. Sternal plate II small, divided medianly; sternal plates III–VI small, in some specimens with median part much narrowed, each with small accessory plate on each side, in more posterior segments often oblong. Subgenital plate as in Fig. 123, lateral sections with slender posterior extensions, detached from subgenital plate in some specimens; median section with wide, often angular, posterior bulge. Surface between subgenital plate and vulval margin densely reticulated. Vulval margin slightly concave, with 4 long and 3 short setae on each side. Subvulval plates small, oval. Measurements as in Tables 1–2.
Remarks
Abdominal size is variable among female specimens examined. We have illustrated a female with a proportionately small abdomen, but note that other specimens have proportionately larger abdomens, similar to those of other species treated here. Structurally, there are no differences between the abdomens of these females, and we do not consider these differences meaningful. We illustrate the smaller-bodied specimens here to highlight the possible variation in body shapes among specimens of Philopteroides.
description: Published as part of Gustafsson, Daniel R., Najer, Tomas, Zou, Fasheng & Bush, Sarah E., 2022, The ischnoceran chewing lice (Phthiraptera: Ischnocera) of bulbuls (Aves: Passeriformes: Pycnonotidae), with descriptions of 18 new species, pp. 1-88 in European Journal of Taxonomy 800 on pages 66-69, DOI: 10.5852/ejt.2022.800.1683, http://zenodo.org/record/6358666