Guimaraesiella (Guimaraesiella) nouankaoensis Gustafsson & Bush 2022, new species
Creators: name: Gustafsson, Daniel R.
name: Bush, Sarah E.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Guimaraesiella
Guimaraesiella nouankaoensis

description: Guimaraesiella (Guimaraesiella) nouankaoensis Gustafsson & Bush, new species
(Figs 85–86, 88, 90, 98–100)
Type host. Coracina caledonica seiuncta Mayr & Ripley, 1941 – South Melanesian cuckooshrike.
Type locality. Nouankao, Erromango Island, Vanuatu.
Other host. Coracina caledonica thilenii (Neumann, 1915).
Diagnosis. Guimaraesiella nouankaoensis new species is most similar to Gu. sphagmotica new species; see diagnosis of Gu. sphagmotica above for a comparison between these two taxa.
Description. Both sexes. Head broad, flat dome-shaped (Fig. 88), lateral margins of preantennal area convex, frons rounded. Marginal carina broad, narrowed near dsms, interrupted submedianly. Dorsal preantennal suture reaches dsms but not ads or lateral head margin, and does not separate dorsal anterior plate posteriorly. Dorsal anterior plate with transverse posterior thickening. Ventral anterior plate roughly crescent-shaped. Head chaetotaxy as in Fig. 88. Preantennal nodi large, bulging. Pre- and postocular nodi of about equal size. Marginal temporal carina slender, of roughly even width. Gular plate with slightly concave lateral margins converging to median point. Thoracic and abdominal segments as in Figs 85–86; ps absent on abdominal segment III in both sexes.
Male. Thoracic and abdominal chaetotaxy as in Fig. 85. Basal apodeme with rounded proximal end, and concave lateral margins (Fig. 98). Proximal mesosome with antero-lateral extensions, proximal margin straight to slightly concave (Fig. 99). Mesosomal lobes bulging slightly. Ventral sclerite as in Fig. 99. Gonopore with several prominent extensions along proximal margin. Parameres and pst1–2 as in Figs 98, 100. Measurements as in Table 1.
Female. Thoracic and abdominal chaetotaxy as in Fig. 86. Subgenital plate rounded trapezoidal, broad distally, with broad lateral submarginal bulges (Fig. 90). Vulval margin gently rounded to somewhat flattened, with 2 short, slender vms and 1–3 short, thorn-like vss on each side; 3–4 short, slender vos on each side of subgenital plate; distal 1 vos near vss. Measurements as in Table 1.
Etymology. The species epithet is derived from the type locality.
Type material. Ex Coracina caledonica seiuncta: Holotype ♂, R [iver?] Nouankao, West of Ipota, Erromango Island [as Erramanga], Vanuatu [as New Hebrides], 7 Aug. 1971, A.G. Marshall, 35-04, British Museum 1972-578 (NHML). Paratypes: 1♂, 9♀, same data as holotype (NHML).
Additional material examined (non-types): Ex Coracina caledonica thilenii [as Artamides caledonicus]: 1♀, Malakula Island, Vanuatu [as New Hebrides], 15 Jul. 1925, P.A. Buxton, NH34 (NHML).
Remarks. The single female from C. c. thilenii is larger in all measurements than females from the type host (Table 1), but is otherwise morphologically similar. We tentatively consider this specimen to be conspecific with female paratypes, but more material is needed to confirm its true identity.
description: Published as part of Gustafsson, Daniel R. & Bush, Sarah E., 2022, Chewing lice of the Brueelia-complex (Phthiraptera: Ischnocera) parasitic on members of the Campephagidae (Aves: Passeriformes), with description of a new subgenus and 14 new species, pp. 1-55 in Zootaxa 5165 (1) on page 39, DOI: 10.11646/zootaxa.5165.1.1, http://zenodo.org/record/6825547