Brueelia galeata, Gustafsson & Najer & Zou & Bush, 2022

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, European Journal of Taxonomy 800, pp. 1-88 : 45-48

publication ID	https://doi.org/ 10.5852/ejt.2022.800.1683
publication LSID	lsid:zoobank.org:pub:213B577F-867D-4ECD-AD2C-48ACA71801B5
DOI	https://doi.org/10.5281/zenodo.6483903
persistent identifier	https://treatment.plazi.org/id/BD97F651-7E39-4B81-AECD-6FD4E00BC734
taxon LSID	lsid:zoobank.org:act:BD97F651-7E39-4B81-AECD-6FD4E00BC734
treatment provided by	Felipe
scientific name	Brueelia galeata
status	sp. nov.

Treatment

Brueelia galeata sp. nov.

urn:lsid:zoobank.org:act:BD97F651-7E39-4B81-AECD-6FD4E00BC734

Figs 78–84 View Figs 78–79 View Figs 80–84

Diagnosis

Brueelia galeata sp. nov. is most similar to Br. celer sp. nov. and Br. pseudognatha Gustafsson & Bush, 2017 , with which it shares the following characters: abdominal segments IV and VII in both sexes with 1 ps on each side ( Figs 71–72 View Figs 71–72 , 78–79 View Figs 78–79 ); female abdominal segment VI with only 1 ps on each side ( Figs 72 View Figs 71–72 , 79 View Figs 78–79 ); male tergopleurite IV without aps ( Figs 71 View Figs 71–72 , 78 View Figs 78–79 ); head rounded dome-shaped ( Figs 73 View Figs 73–77 , 80 View Figs 80–84 ) and relatively narrow rugose area on distal ends of mesosomal lobes ( Figs 76 View Figs 73–77 , 83 View Figs 80–84 ). With Br. celer sp. nov. it further shares basal apodeme of male genitalia with rounded anterior margin ( Figs 74 View Figs 73–77 , 81 View Figs 80–84 ); proximal mesosome with convex anterior and lateral margins, without lateral projections ( Figs 76 View Figs 73–77 , 83 View Figs 80–84 ); stocky crescent-shaped gonopore ( Figs 76 View Figs 73–77 , 83 View Figs 80–84 ) and penile arms reaching beyond distal end of mesosomal lobes ( Figs 76 View Figs 73–77 , 83 View Figs 80–84 ).

Brueelia galeata sp. nov. can be separated from the other two species by the absence of tsp on male tergopleurite VIII in Br. galeata sp. nov. ( Fig. 78 View Figs 78–79 ); at least 1 tps on each side is present in the other two species ( Fig. 71 View Figs 71–72 ). Moreover, females of Br. galeata sp. nov. can be separated from females of the other two species by the shape of the vulval margin: gently rounded in Br. galeata sp. nov. ( Fig. 84 View Figs 80–84 ), but convergent to a median point in the other two species ( Fig. 77 View Figs 73–77 ).

Moreover, Br. galeata sp. nov. can be separated from Br. celer sp. nov. by the following characters: proximal mesosome with flattened, somewhat angular median bulge in Br. galeata sp. nov. ( Fig. 83 View Figs 80–84 ), but with rounded, elongated bulge in Br. celer sp. nov. ( Fig. 76 View Figs 73–77 ); distal mesosome more rounded in Br. celer sp. nov. ( Fig. 76 View Figs 73–77 ) than in Br. galeata sp. nov. ( Fig. 83 View Figs 80–84 ); male tergopleurite V with ss in Br. galeata sp. nov. ( Fig. 78 View Figs 78–79 ), but without ss in Br. celer sp. nov. ( Fig. 71 View Figs 71–72 ); female subgenital plate widening anteriorly, with convex anterior margin in Br. galeata sp. nov. ( Fig. 84 View Figs 80–84 ), but with proximal half of about the same width and concave anterior margin in Br. celer sp. nov. ( Fig. 77 View Figs 73–77 ).

Brueelia galeata sp. nov. can be separated from Br. pseudognatha by the following additional characters: head proportionately wider and with more rounded preantennal area in Br. galeata sp. nov. ( Fig. 80 View Figs 80–84 ) than in Br. pseudognatha ; proximal mesosome gently rounded in Br. pseudognatha but flattened and somewhat angular in Br. galeata sp. nov. ( Fig. 83 View Figs 80–84 ); gonopore crescent shaped in Br. galeata sp. nov. ( Fig. 83 View Figs 80–84 ), but rounded in Br. pseudognatha .

Brueelia alophoixi was described from the same host species, but these two species can be separated by the following characters: preantennal area trapezoidal in Br. alophoixi , but rounded in Br. galeata sp. nov. ( Fig. 80 View Figs 80–84 ); male tergopleurite VIII with tps in Br. alophoixi , but without tps in Br. galeata sp. nov. ( Fig. 78 View Figs 78–79 ); male abdominal segment VII with 2 ps on each side in Br. alophoixi , but with 1 ps on each side in Br. galeata sp. nov. ( Fig. 78 View Figs 78–79 ); female abdominal segments VI–VII with 2 ps on each side in Br. alophoixi , but with only 1 ps each on each side in Br. galeata sp. nov. ( Fig. 79 View Figs 78–79 ); proximal mesosome rounded in Br. alophoixi , but with broadly flattened convex anterior margin in Br. galeata sp. nov. ( Fig. 83 View Figs 80–84 ).

Etymology

The species name is derived from ‘ galeatus ’, Latin for ‘helmeted’. In particular, we are here referring to the traditional Roman helmet, the ‘ galea ’, which is reminiscent of the gonopore of this species.

Material examined

Holotype (ex Alophoixus pallidus henrici ) THAILAND • ♂; Chieng Mai Province , Doi Pui; 11 Feb. 1965; H.E. McClure leg.; SE-1912; BPBM.

Paratype THAILAND • 1 ♀; same collection data as for holotype; BPBM .

Type host

Alophoixus pallidus henrici (Oustalet, 1896) – puff-throated bulbul.

Description

Both sexes

Head flat dome-shaped ( Fig. 80 View Figs 80–84 ), lateral margins of preantennal head convex, frons rounded in male, slightly flattened in female. Marginal carina moderate, shallowly displaced and translucent but not widened at osculum; lateral sections with shallowly undulating median margins. Ventral anterior plate not visible. Head chaetotaxy as in Fig. 80 View Figs 80–84 ; pos located far behind eye. Temples rounded, occiput more or less straight. Thoracic and abdominal segments as in Figs 78–79 View Figs 78–79 . Base pigmentation pale yellow-brown, except lateral sections of marginal carina, head nodi, proepimera, and lateral sections of tergopleurites slightly darker.

Male

Thoracic and abdominal chaetotaxy as in Fig. 78 View Figs 78–79 . Basal apodeme short, constricted at mid-length ( Fig. 81 View Figs 80–84 ). Proximal mesosome short, wide, flattened ( Fig. 83 View Figs 80–84 ). Mesosomal lobes broad, narrowing proximally, not elongated, with intensely rugose postero-median margins; 2 pmes sensilla latero-distal to gonopore. Gonopore relatively long, broadly crescent shaped, with a hint of rounded angle on the anterior margin, distal margin deeply concave; no lateral extensions. Penile arms reach distal to mesosomal lobes. Parameres extended distally ( Fig. 82 View Figs 80–84 ), distal end broad; pst1–2 as in Fig. 82 View Figs 80–84 . Measurements as in Table 1 View Table 1 .

Female

Thoracic and abdominal chaetotaxy as in Fig. 79 View Figs 78–79 . Subgenital plate long and slender, widening anteriorly ( Fig. 84 View Figs 80–84 ), distal connection to cross-piece broad, cross-piece broad. Vulval margin rounded ( Fig. 84 View Figs 80–84 ), with 3 short, slender vms and 5 short, thorn-like vss on each side; 3 short, slender vos on each side of subgenital plate; distal 1 vos median to vss. Measurements as in Table 1 View Table 1 .