Guimaraesiella ixi 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
Guimaraesiella
Guimaraesiella ixi

description: Guimaraesiella ixi sp. nov.
urn:lsid:zoobank.org:act: 7ED99A0B-945C-42B5-9A9D-7431C5BF1A1D
Figs 29–35
Diagnosis
Guimaraesiella ixi sp. nov. is not particularly similar to any other species of Guimaraesiella known from bulbuls, and can be separated from all other species by the following combination of characters: male tergopleurites IV–V without tps (Fig. 29); proximal mesosome narrow distally (Fig. 34); gonopore slenderly crescent shaped (Fig. 34); dorsal preantennal suture reaching ads and lateral margin of head (Fig. 31); male tergopleurite VI without aps (Fig. 29); abdominal segment IV with 2 ps on each side in both sexes (Fig. 29); proximal mesosome slender (Fig. 34); ventral sclerite of mesosome with anterior thickening (Fig. 27).
Etymology
The species name is derived from the generic name of the type host.
Material examined
Holotype (ex Ixos mcclellandii peracensis [as Hypsipetes mcclellandii or Microscelis mcclellandii]) MALAYSIA • ♂; Mount Brinchang; 17 Mar. 1963; M-02631; NHML.
Paratypes MALAYSIA • 1 ♀; same collection data as for holotype; NHML • 1 ♂; same locality as for holotype; 11 Dec. 1962; M-00685; NHML • 1 ♀; same locality and date as for holotype; M-00683; NHML.
Type host
Ixos mcclellandii peracensis (Hartert & Butler, 1898) – mountain bulbul.
Description
Both sexes
Head pentagonal(Fig.31), lateral margins of preantennal head more or less straight, frons slightly concave. Marginal carina slender, gradually narrowing anteriorly, median margin only slightly undulating. Dorsal anterior plate narrowing posteriorly, with shallowly concave anterior margin and convex lateral margins. Ventral anterior plate short, bowl-shaped with slightly concave anterior margin. Dorsal preantennal suture reaches ads and lateral margins of head. Preantennal nodi extended medianly. Head chaetotaxy as in Fig. 31. Coni reach beyond distal margin of scapes. Lateral margins of postantennal head slightly convex. Temples sharply rounded. Temporal marginal carina slender, only slightly irregular. Thoracic and abdominal segments as in Figs 29–30. Base pigmentation very faint, most of body translucent, except preantennal and preocular nodi, gular plate, proepimera, metepisterna and lateral sections of tergopleurites pale brown.
Male
Thoracic and abdominal chaetotaxy as in Fig. 29. Basal apodeme short, constricted distally from mid-length (Fig. 32). Proximal mesosome trapezoidal (Fig. 34). Ventral sclerite slender, anterior end rounded, not thickened, not reaching anterior margin of proximal mesosome. Mesosomal lobes rounded triangular; 3 ames sensilla on each side, distal seta on each side apparently longer than two proximal setae; 2 pmes microsetae on lateral margins of mesosome. Gonopore deeply crescent shaped. Parameral heads as in Fig. 33. Parameral blades stout, in shape of hunting knife, narrowing only distally; pst1–2 as in Fig. 33. Measurements as in Table 1.
Female Thoracic and abdominal chaetotaxy as in Fig. 30. Subgenital plate broad in distal end (Fig. 35), with blunt and broad lateral submarginal extensions. Vulval margin curved, with 3–4 short, slender vms and 5–7 short, thorn-like vss on each side; 5–6 short, slender vos on each side of subgenital plate; distal 1–2 vos median to vss. Measurements as in Table 1.
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 22-24, DOI: 10.5852/ejt.2022.800.1683, http://zenodo.org/record/6358666