Priceiella (Thescelovora) alliocephala 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: 186

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-FF33-FF7A-FF74-6000FDAAF82B

treatment provided by

Plazi

scientific name

Priceiella (Thescelovora) alliocephala Gustafsson & Bush
status

new species

Priceiella (Thescelovora) alliocephala Gustafsson & Bush  , new species

( Figs 300–307View FIGURES 300 – 301View FIGURES 302 – 306View FIGURES 307 – 308, 317View FIGURES 315 – 318)

Type host. Platylophus galericulatus ardesiacus (Bonaparte, 1850)  —crested jay. Type locality. 5° 28′ N 102° 40′ E: elev. 140 ft, [Terenganu Sultanate,] Malaysia.GoogleMaps 

Diagnosis. Priceiella (Thescelovora) alliocephala  n. sp. is separated from the only other described member of Pr. (Thescelovora) n. subgen., Pr. (Th.) malacocincla  (Najer & Sychra [in Najer et al.], 2014) by the following characters: dorsal preantennal suture absent in Pr. (Th.) malacocincla  , but present in Pr. (Th.) alliocephala  n. sp ( Fig. 302View FIGURES 302 – 306); head size [length x width: 0.34 x 0.35 in male Pr. (Th.) malacocincla  , and c. 0.37 x 0.38 in female Pr. (Th.) malacocincla  ; c. 0.42 x 0.42 in male Pr. (Th.) alliocephala  , and c. 0.45 x 0.45 in female Pr. (Th.) alliocephala  ]; lateral margins of preantennal head more or less flat in Pr. (Th.) malacocincla  , but concave in Pr. (Th.) alliocephala  ( Fig. 302View FIGURES 302 – 306); gonopore constricted proximally in Pr. (Th.) malacocincla  , but not constricted in Pr. (Th.) alliocephala  ( Fig. 304View FIGURES 302 – 306); marginal thickenings of mesosomal lobes fused distally in Pr. (Th.) alliocephala  ( Fig. 304View FIGURES 302 – 306), but not in Pr. (Th.) malacocincla  ; proximal mesosome narrow in Pr. (Th.) malacocincla  but broader in Pr. (Th.) alliocephala  ( Fig. 304View FIGURES 302 – 306). Vulval chaetotaxy overlaps between these two species, and females better separated by head shape and presence of dorsal preantennal suture.

Description. Both sexes. Head shape, structure, and chaetotaxy as in genus and subgenus descriptions and Fig. 302View FIGURES 302 – 306. Preantennal nodi moderate. Coni much slightly longer than broad at base, reaching to or slightly beyond distal margin of scapes. Preocular nodi moderate. Postocular nodi small. Gular plate short, squat. Thoracic and abdominal segments as genus and subgenus descriptions and Figs 300–301View FIGURES 300 – 301. Tergopleurites with brown pigmentation restricted to lateral half, with translucent areas surrounding spiracle openings. Sternal plates IV –VI and subgenital plate of both sexes with light brown pigmentation; tps  absent on segments II –VIII. Pleurites not modified as in other Priceiella  ( Fig. 317View FIGURES 315 – 318).

Male. Abdominal chaetotaxy as in Table 8 and Fig. 300View FIGURES 300 – 301. Male genitalia distinct ( Figs 303–305View FIGURES 302 – 306). Mesosome narrow anteriorly, widening just posterior to parameral heads. Proximal mesosome gently rounded. Gonopore ( Fig. 304View FIGURES 302 – 306) open proximally. Mesosomal lobes broad, short, fused distally; 2 pmes microsetae on each side just lateral to gonopore; 2 ames sensilla on each side lateral to pmes. Parameral heads ( Fig. 305View FIGURES 302 – 306) rounded triangular. Parameral blades slender, tapering; pst1–2 sensilla. Measurements ex Platylophus galericulatus ardesiacus  (n = 2): TL = 1.32–1.36; HL = 0.42–0.43; HW = 0.42–0.43; PRW = 0.24; PTW = 0.35; AW = 0.44–0.46.

Female. Abdominal chaetotaxy as in Table 8 and Fig. 301View FIGURES 300 – 301. Subgenital plate broadly pentagonal ( Fig. 306View FIGURES 302 – 306), reaching vulval margin and flaring. Vulval margin ( Fig. 306View FIGURES 302 – 306) gently rounded, with 3–4 long, slender vms on each side, and 6–7 long, thorn-like vss on each side; 4 long, slender vos on each side; distal vos situated median to vss. Measurements ex Platylophus galericulatus ardesiacus  (n = 2): TL = 1.61–1.64; HL = 0.45–0.46; HW = 0.45; PRW = 0.26–0.27; PTW = 0.38; AW = 0.46–0.47.

Etymology. The species epithet is formed by Latin “ allium ” for “garlic” and Greek “ kefáli ” for head, referring to the narrowed preantennal area, unique within the genus ( Figs 300–301View FIGURES 300 – 301).

Type material. Ex Platylophus galericulatus ardesiacus  : Holotype ♂, 5° 28′ N 102° 40′ E: elev. 140 ft, [Terenganu Sultanate,] Malaysia, 25 Mar. 1974, Gn. Lawit Expedition, Brit. Mus. 1974-2 ( NHMLAbout NHML)GoogleMaps  . Paratypes: 1♂, 2♀, same data as holotype ( NHMLAbout NHML)GoogleMaps  .

NHML

Natural History Museum, Tripoli