Guimaraesiella (Guimaraesiella) nouankaoensis Gustafsson, 2022

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, Zootaxa 5165 (1), pp. 1-55 : 39

publication ID	https://doi.org/ 10.11646/zootaxa.5165.1.1
publication LSID	lsid:zoobank.org:pub:A03F9711-19D7-4D7A-B30E-842DA141B2A0
DOI	https://doi.org/10.5281/zenodo.6825723
persistent identifier	https://treatment.plazi.org/id/03B15059-B37D-FFE0-FF41-F9D0FC7BFA98
treatment provided by	Plazi
scientific name	Guimaraesiella (Guimaraesiella) nouankaoensis Gustafsson
status	new species

Treatment

Guimaraesiella (Guimaraesiella) nouankaoensis Gustafsson View in CoL & Bush, new species

( Figs 85–86 View FIGURES 85–86 , 88 View FIGURES 87–88 , 90 View FIGURES 89–90 , 98–100 View FIGURES 95–106 )

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 View FIGURES 87–88 ), 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 View FIGURES 87–88 . 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 View FIGURES 85–86 ; ps absent on abdominal segment III in both sexes.

Male. Thoracic and abdominal chaetotaxy as in Fig. 85 View FIGURES 85–86 . Basal apodeme with rounded proximal end, and concave lateral margins ( Fig. 98 View FIGURES 95–106 ). Proximal mesosome with antero-lateral extensions, proximal margin straight to slightly concave ( Fig. 99 View FIGURES 95–106 ). Mesosomal lobes bulging slightly. Ventral sclerite as in Fig. 99 View FIGURES 95–106 . Gonopore with several prominent extensions along proximal margin. Parameres and pst1–2 as in Figs 98, 100 View FIGURES 95–106 . Measurements as in Table 1 View TABLE 1 .

Female. Thoracic and abdominal chaetotaxy as in Fig. 86 View FIGURES 85–86 . Subgenital plate rounded trapezoidal, broad distally, with broad lateral submarginal bulges ( Fig. 90 View FIGURES 89–90 ). 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 View 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 View 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.