Nemuus hoedhri Gustafsson & Bush

Bush, Sarah E., 2017, Morphological revision of the hyperdiverse Brueelia - complex (Insecta: Phthiraptera: Ischnocera: Philopteridae) with new taxa, checklists and generic key, Zootaxa 4313 (1), pp. 1-443: 212

publication ID

https://doi.org/10.11646/zootaxa.4313.1.1

publication LSID

lsid:zoobank.org:pub:A5Fdfba5-F992-44A8-84C2-1756C943C19B

persistent identifier

http://treatment.plazi.org/id/832187E9-FF59-FF10-FF74-6298FB38F82B

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Plazi

scientific name

Nemuus hoedhri Gustafsson & Bush
status

new species

Nemuus hoedhri Gustafsson & Bush  , new species

( Figs 346–353View FIGURES 346 – 347View FIGURES 348 – 353)

Type host. Artamus fuscus Vieillot, 1817  —ashy woodswallow.

Type locality. Khao Oerewan Mountains , Lopburi Province, Thailand. 

Diagnosis. Nemuus hoedhri  n. sp. is much paler than Ne. imperator  n. sp., and both sexes are easily told apart by head shape, pigmentation patterns, and the accessory sts present on segment II in Ne. hoedhri  ( Figs 346–347View FIGURES 346 – 347) but not in Ne. imperator  ( Figs 338–339View FIGURES 338 – 339).

Male Nemuus hoedhri  is separated from male Ne. imperator  by male genitalia: rugose area of ventral mesosome present in Ne. hoedhri  ( Fig. 351View FIGURES 348 – 353) but absent in Ne. imperator  ( Fig. 343View FIGURES 340 – 345); gonopore with lateral triangular extensions in distal half in Ne. imperator  ( Fig. 343View FIGURES 340 – 345), but with hook-shaped anterior extensions in Ne. hoedhri  ( Fig. 351View FIGURES 348 – 353); parameral heads truncated in Ne. hoedhri  ( Fig. 352View FIGURES 348 – 353), but not in Ne. imperator  ( Fig. 344View FIGURES 340 – 345); parameral blades blunt distally in Ne. hoedhri  ( Fig. 352View FIGURES 348 – 353), but pointed distally in Ne. imperator  ( Fig. 344View FIGURES 340 – 345).

Female Nemuus hoedhri  is separated from female Ne. imperator  by the following characters: tps  absent on tergopleurites II –V in Ne. imperator  ( Fig. 339View FIGURES 338 – 339), but present in Ne. hoedhri  ( Fig. 347View FIGURES 346 – 347); indentation of posterior margin of the female subgenital plate reaches farther than mid-length in Ne. hoedhri  ( Fig. 353View FIGURES 348 – 353) but only to about mid-length in Ne. imperator  ( Fig. 345View FIGURES 340 – 345); vulval chaetotaxy with slight overlap, but Ne. hoedhri  ( Fig. 353View FIGURES 348 – 353) generally with fewer vms (3–4) and vss (8–10) than Ne. imperator  ( Fig. 345View FIGURES 340 – 345) (4–5 vms and 10–12 vss).

Description. Both sexes. Head shape, structure, and chaetotaxy as in genus description and Fig. 348View FIGURES 348 – 353. Preantennal area not shortened. Frons distinctly concave. Dorsal anterior plate as long as or longer than wide. Head largely translucent, but at least nodi, mandibular framework, gular plate, and occipital and ventral carinae with pale brown pigmentation. Thoracic and abdominal segments as in genus description and Figs 346–347View FIGURES 346 – 347. Body largely translucent, but proepimera, metepisterna, pleurites, sternal plates, and subgenital plates with pale brown pigmentation.

Male. Scape swollen ( Fig. 348View FIGURES 348 – 353). Subgenital plate with irregular lateral margins but no prominent lateral indentation at half-length. Abdominal chaetotaxy as in Table 2 and Fig. 346View FIGURES 346 – 347. Basal apodeme not notched anteriorly ( Fig. 350View FIGURES 348 – 353). Proximal mesosome with irregular, somewhat rounded anterior margin, not overlapping with basal apodeme. Gonopore ( Fig. 351View FIGURES 348 – 353) ventral, narrowly open distally, and associated with hook-shaped antero-lateral extensions. Mesosomal lobes broad, short, with distinct rugose area at half-length. Lateral margins of lobes thickened; 2 ames microsetae on each side on lateral margin of mesosome anterior to gonopore; 2 pmes microsetae on each side sublaterally on rugose area in distal mesosome. Parameral heads ( Fig. 352View FIGURES 348 – 353) truncated. Parameral blades long, rounded distally; pst1 as in genus description; pst2 central. Measurements ex Artamus fuscus  (n = 6 except n = 5 for TL, PTW, and AW): TL = 1.45–1.57; HL = 0.40–0.43; HW = 0.43–0.47; PRW = 0.27–0.29; PTW = 0.43–0.47; AW = 0.55–0.61.

Female. Scape not swollen ( Fig. 349View FIGURES 348 – 353). Abdominal chaetotaxy as in Table 2 and Fig. 347View FIGURES 346 – 347; tps  present on tergopleurites II –V. Posterior margin of subgenital plate narrowly indented medianly to more than to mid-length ( Fig. 353View FIGURES 348 – 353). Vulval margin gently rounded ( Fig. 353View FIGURES 348 – 353), with no pigmented band; 3–4 short, slender vms on each side, and 8–10 short, thorn-like vss on each side; 6–8 short, slender vos on each side; 1–2 distal vos median to vss. Measurements ex Artamus fuscus  (n = 6 except n = 4 for AW): TL = 1.92–2.07; HL = 0.43–0.46; HW = 0.46–0.50; PRW = 0.29–0.31; PTW = 0.50–0.53; AW = 0.75–0.78.

Etymology. Nemuus hoedhri  is named after Höðr, the blind brother of Baldr in Norse mythology. Höðr was fooled by the trickster god Loki into killing Baldr, by shooting at him with an arrow made of mistletoe, the only thing that could kill him. Here, this name refers to the fusion of the pre- and postocular nodi, so that the eye appears isolated from the rest of the head ( Fig. 348View FIGURES 348 – 353), and the lice thus seem “blind”.

Type material. Ex Artamus fuscus  : Holotype ♂, Khao Oerewan Mountains, Lopburi Province, Thailand, 10 Jul. 1953, R.E. Elbel, RE-2770, B-21651, 24590 on reverse ( OSUSAbout OSUS)  . Paratypes: 2♂, 3♀, same data as holotype, 24589 or 24591 on reverse ( OSUSAbout OSUS)  ; 3♂, 3♀, same data as holotype (PIPeR)  ; 1♀, Khao Kham Mountains , Lopburi Province, Thailand, 17 Aug. 1953, RE-2894, RT-B-21697 (PIPeR)  ; 1♂, Bal Lat , Ban Kaeng Subdistrict, Phu Khiao District, Chaiyaphum Province, Thailand, 19 Dec. 1952, R.E. Elbel, RE-933, RT-B-17551 (PIPeR). 

OSUS

Oklahoma State University