Brueelia celer, 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 : 42-44

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.6358721
persistent identifier	https://treatment.plazi.org/id/0339C035-55BF-4943-AA75-CBAC2B2FFE0F
taxon LSID	lsid:zoobank.org:act:0339C035-55BF-4943-AA75-CBAC2B2FFE0F
treatment provided by	Felipe
scientific name	Brueelia celer
status	sp. nov.

Treatment

Brueelia celer sp. nov.

urn:lsid:zoobank.org:act:0339C035-55BF-4943-AA75-CBAC2B2FFE0F

Figs 71–77 View Figs 71–72 View Figs 73–77

Diagnosis

Brueelia celer sp. nov. is most similar to 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 ); female abdominal segment VI with only 1 ps on each side ( Fig. 72 View Figs 71–72 ); male tergopleurite IV without aps, male tergopleurite VIII with tps ( Fig. 71 View Figs 71–72 ); overall shape of proximal mesosome rather broadly rounded ( Fig. 76 View Figs 73–77 ); vulval margin convergent to median point ( Fig. 77 View Figs 73–77 ).

These two species can be separated by the following characters: male tergopleurite VIII with 2 tps on each side in Br. pseudognatha , but with only 1 tps on each side in Br. celer sp. nov. ( Fig. 71 View Figs 71–72 ); proximal mesosome gently rounded in Br. pseudognatha , but with median bulge in Br. celer sp. nov. ( Fig. 76 View Figs 73–77 ); parameres proportionately more elongated in Br. celer sp. nov. ( Fig. 75 View Figs 73–77 ) than in Br. pseudognatha ; gonopore crescent shaped in Br. celer sp. nov. ( Fig. 76 View Figs 73–77 ), but rounded in Br. pseudognatha ; mesosomal lobes broader in Br. pseudognatha than in Br. celer sp. nov. ( Fig. 76 View Figs 73–77 ); differences in shape of female subgenital plate ( Fig. 77 View Figs 73–77 ).

Etymology

The species name is derived from the Latin ‘ celer ’ for ‘swift’, referring to the sleek, slender appearance of this species.

Material examined

Holotype (ex Pycnonotus cafer bengalensis [as Py. haemorrhous benghalensis ]) NEPAL • ♂; Mar. 1937; R. Meinertzhagen leg.; 9112; NHML [marked with blue dot on slide] .

Paratypes NEPAL • 7 ♂♂, 18 ♀♀; same collection data as for holotype; NHML • 3 ♂♂, 23 ♀♀; same collection data as for holotype except 9110; NHML .

Non-type material (ex Pycnonotus cafer primrosei [as Py. haemorrhous burmanicus ]) INDIA • 2 ♂♂, 1 ♀; Nagaland [as Assam], Kohima ; 29 Jan. 1952; R. Meinertzhagen leg.; 19882, Brit. Mus. 1952-143; NHML .

Type host

Pycnonotus cafer bengalensis Blyth, 1845 – red-vented bulbul.

Other host

Pycnonotus cafer primrosei Deignan, 1949 .

Description

Both sexes

Head convex dome-shaped ( Fig. 73 View Figs 73–77 ), lateral margins of preantennal head convex, frons rounded to slightly flattened. Marginal carina slender, moderately displaced and translucent but not widened at osculum, median margin undulating. Ventral anterior plate not visible. Head chaetotaxy as in Fig. 73 View Figs 73–77 ; pos located near posterior margin of eye. Temples rounded, occiput slightly convex. Thoracic and abdominal segments as in Figs 71–72 View Figs 71–72 . Base pigmentation pale brown, darkening at median margin of marginal carina, margins of antennal socket, lateral section of postantennal head including pre- and postocular nodi and marginal temporal carina, proepimera, metepisterna, and lateral sections of tergopleurites.

Male

Thoracic and abdominal chaetotaxy as in Fig. 71 View Figs 71–72 . Basal apodeme long ( Fig. 74 View Figs 73–77 ), constricted at midlength, with rounded anterior margin. Proximal mesosome broad, rounded ( Fig. 76 View Figs 73–77 ). Mesosomal lobes slender, with restricted rugose area near medio-distal margin; 2 pmes sensilla on each side laterodistal to gonopore. Gonopore crescent shaped, stocky; no lateral extensions. Penile arms reach slightly beyond distal margin of mesosomal lobes. Parameres stocky, elongated distally; pst1–2 as in Fig. 75 View Figs 73–77 . Measurements as in Table 1 View Table 1 .

Female

Thoracic and abdominal chaetotaxy as in Fig. 72 View Figs 71–72 . Subgenital plate long and slender ( Fig. 77 View Figs 73–77 ), with straight anteriora and lateral margins, distal connection to cross-piece broad. Vulval margin straightly convergent to rounded median point ( Fig. 77 View Figs 73–77 ), with 2–5 short, slender vms and 3–5 short, thorn-like vss on each side; 3–5 short, slender vos on each side of subgenital plate; distal 1 vos median to vss. Measurements as in Table 1 View Table 1 .

Remarks

We found no significant differences between specimens from the two host subspecies, and consider specimens from both host subspecies to be conspecific.