Guimaraesiella mayoensis 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 mayoensis

description: Guimaraesiella mayoensis sp. nov.
urn:lsid:zoobank.org:act: 621D4015-6DA4-446A-B1C6-62CEF4D42D79
Figs 15–21
Diagnosis
Guimaraesiella mayoensis sp. nov. is most similar to Gu. phlaoalopha sp. nov., with which it shares the following characters: male tergopleurites IV–V without aps, but tergopleurite VI with aps (Figs 15, 43); dorsal preantennal suture reaching ads (Figs 17, 45); male tergopleurite VIII with 2 tps on each side (Fig. 15, 43); female abdominal segment IV with ps (Figs 15, 44).
These two species can be separated by the following characters: abdominal segment IV with 1 ps on each side in both sexes in Gu. phlaoalopha sp. nov. (Figs 43–44), but with 2 ps on each side in Gu. mayoensis sp. nov. (Figs 15–16); male abdominal segments VI–VII with 3 ps on each side in Gu. mayoensis sp. nov. (Fig. 15), but with only 2 ps on each side in Gu. phlaoalopha sp. nov. (Fig. 43); proximal mesosome constricted distally and with clearly concave anterior margin in Gu. phlaoalopha sp. nov. (Fig. 48), but barely or not constricted distally and with straight or slightly convex anterior margin in Gu. mayoensis sp. nov. (Fig. 20); shape of ventral sclerite of mesosome differs between species (Figs 20, 48), and sclerite with proximal thickening in Gu. phlaoalopha sp. nov. (Fig. 48) that is absent in Gu. mayoensis sp. nov. (Fig. 20).
Etymology
The species name is derived from the type locality.
Material examined
Holotype (ex Hypsipetes everetti everetti) PHILIPPINES • ♂; Mindanao, Davao Province, Mount Mayo, Limot Mati; 11 Jun. 1965; D.S. Rabor leg.; B-8263; BPBM.
Paratypes PHILIPPINES • 4 ♂♂, 12 ♀♀, 2 nymphs; Mindanao, Davao Province, Mount Mayo, Unloh Mati; 3200–4200 ft a.s.l.; 9 Nov. 1965; D.S. Rabor leg.; B-8717; BPBM.
Type host
Hypsipetes everetti everetti (Tweeddale, 1877) – yellowish bulbul.
Description
Both sexes
Head pentagonal, short (Fig. 17), lateral margins of preantennal head slightly convex, but anterior fourth straight to concave, frons concave. Marginal carina broad, narrowing slightly in anterior end, median margins irregular, posterior end relatively narrow. Dorsal anterior plate with shallowly concave anterior margin and convex lateral margins. Ventral anterior plate pale, and often difficult to see, roughly triangular, but with anterior margin concave. Dorsal preantennal suture reaches ads, in some specimens extends slightly median to ads; suture reaches lateral margins of head. Preantennal nodi extended slightly medianly. Head chaetotaxy as in Fig. 17. Coni reach beyond distal margins of scapes. Lateral margins of postantennal head almost parallel. Temples gently rounded. Temporal marginal carina slender, and postocular nodi very slight. Thoracic and abdominal segments as in Figs 15–16. Base pigmentation very pale brown, only slightly darker in head carina and nodi, gular plate, proepimera, and metepisterna. Lateral sections of tergopleurites II–IV pale, in more posterior segments distinctly darker.
Male
Thoracic and abdominal chaetotaxy as in Fig. 15. Basal apodeme broad (Fig. 18), clearly but shallowly constricted at mid-length. Proximal mesosome short, roughly square-shaped (Fig. 20). Ventral sclerite without anterior thickening, short and broad, almost reaching anterior margin of mesosome. Mesosomal lobes slender; 3 ames sensilla on each side; 2 pmes microsetae on lateral margins of mesosome. Gonopore inverse U-shaped, with small, pointed extensions on anterior margin. Parameral heads as in Fig. 19. Parameral blades broad, stocky, narrowing suddenly near distal end, with tips bent laterally; pst1–2 as in Fig. 19. Measurements as in Table 1.
Female
Thoracic and abdominal chaetotaxy as in Fig. 16. Distal subgenital plate largely translucent, and here illustrated approximately (Fig. 21); lateral submarginal extensions reach more than halfway to lateral ends of vulval margin. Vulval margin gently rounded (Fig. 21), with 3–4 short, slender vms and 6–8 short, thorn-like vss on each side; 5–7 short, slender vos on each side of subgenital plate; distal 1–2 vos median to vms. 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 16-19, DOI: 10.5852/ejt.2022.800.1683, http://zenodo.org/record/6358666