Priceiella (Camurnirmus) rhinocichlae ( Eichler, 1957 )

Gustafsson, Daniel R., Clayton, Dale H. & Bush, Sarah E., 2018, Twelve new species of Priceiella (Phthiraptera: Ischnocera: Philopteridae) from Old World babblers, with keys to species of two subgenera and checklists of species for the genus, Zootaxa 4382 (3), pp. 401-449 : 440-442

Priceiella (Camurnirmus) rhinocichlae ( Eichler, 1957)

( Figs 85–91 )

Allobrueelia rhinocichlae Eichler, 1957: 579 .

Brueelia rhinocichlae ( Eichler, 1957) ; Price et al. 2003: 158.

Priceiella (Camurnirmus) rhinocichlae ( Eichler, 1957) ; Gustafsson & Bush 2017: 175.

Type host. Ianthocichla mitrata mitrata (Muller, 1836) —chestnut-capped laughingthrush ( Leiothrichidae ). Type locality: Sumatra, Indonesia.

Other hosts. Ianthocincla mitrata major (Robinson & Kloss, 1919) —chestnut-capped laughingthrush ( Leiothrichidae ).

Description. Both sexes. Head broadly acorn-shaped ( Fig. 87 ). Frons flat to slightly concave. Lateral margins of preantennal head convex. Head chaetotaxy as in Fig. 87 ; ads mesosetae. Coni and antennae sexually dimorphic. Base pigmentation pale brown; marginal and marginal temporal carinae, head nodi, margins of antennal socket, proepimera, metepisterna and pleural incrassations dark brown with slight red tint; gular plate, sternal plates IV–VI and subgenital plate medium brown; meso- and metasternal plates and sternal plates II–III pale brown.

Male. Coni short, blunt, about half as long as scape ( Fig. 87 ). Pteronotum with 5–6 mms on each side ( Fig. 85 ). Abdominal plates and chaetotaxy as in Fig 85 . Male genitalia as in Figs 88–90 . Basal apodeme constricted at midlength, distal end wider than proximal end ( Fig. 88 ). Proximal mesosome rectangular, with flat proximal margin ( Fig. 89 ). Mesosomal lobes rectangular, distal margin almost flat dorsally. Large submedial ventral nodi project distal to dorsal margin of mesosome. Marginal thickening of mesosomal lobes not displaced medially. Gonopore with lateral extensions in anterior end; 2 ames sensilla on each side near antero-lateral corners of mesosomal lobes; 2 pmes sensilla on each side lateral to gonopore; 2 pmes sensilla submedially near posterio-lateral corners of mesosomal lobes. Parameral heads roughly rounded rectangular, with sinuous posterior margin ( Fig. 90 ). Parameral blades elongated, tapered, widely divergent distally; pst1–2 widely separated. Measurements ex Ianthocincla mitrata major (n = 1): TL = 1.32; HL = 0.34; HW = 0.34; PRW = 0.22; PTW = 0.34; AW = 0.50.

Female. Coni long, pointed, reaching beyond distal margin of scape ( Fig. 86 ). Pteronotum with 5 mms on each side ( Fig. 86 ). Abdominal plates and chaetotaxy as in Fig. 86 . Vulval margin gently rounded ( Fig. 91 ), in 2 of 3 females slightly flattened medially, with 4 slender vms and 5–7 thorn-like vss on each side. Medial-most vms much shorter than other vms; 3–5 slender vos; distal vos just anterior to vss. Measurements ex Ianthocincla mitrata mitrata (n = 1): TL = 1.45; HL = 0.36; HW = 0.37; PRW = 0.22; PTW = 0.33; AW = 0.53. Measurements ex Ianthocincla mitrata major (n = 3): TL = 1.48–1.60; HL = 0.36–0.37; HW = 0.38–0.39; PRW = 0.22–0.23; PTW = 0.35–0.36; AW = 0.51–0.55.

Type material. Ex Ianthocincla mitrata mitrata : Holotype ♀, [Sumatra, Indonesia], NHRS-GULI000010336 ( SMNH).

Additional material examined (non-types). Ex Ianthocincla mitrata major : 1♂: Gunong Benom , elev. 5000 ft . , Malaysia, 21 Mar. 1967, BN-381, Brit. Mus. 1967-400 ( NHML); 3♀, Terengganu, elev. 4200 ft . , 102° 36’ E 5° 25’ N, Malaysia, 17 Mar. 1974, Gn. Lawit Expedition, Brit. Mus. 1974-2 ( NHML).

Remarks. We have examined the holotype and the only other previously known specimen of Brueelia rhinocichlae Eichler, 1957 , to confirm that this species is a member of Priceiella (Camurnirmus) . However, the holotype is poorly preserved. Few characters of the head or female genitalia can be clearly seen, and the abdominal chaetotaxy is partially obscured. What can be seen of the overall morphology is indistinguishable from that of a female from Ianthocincla mitrata major (Robinson and Kloss, 1919) . Therefore, we redescribe and reillustrate P. (C.) rhinocichlae based on material from this host subspecies. Future collections from both host subspecies will be necessary to establish with more certainty whether the Camurnirmus on both hosts represent the same species.

Figures

FIGURES85–86. Priceiella (Camurnirmus) rhinocichlae (Eichler, 1957) ex Ianthocincla mitrata major (Robinson and Kloss, 1919).85, male habitus, dorsal and ventral views. 86, female habitus, dorsal and ventral views.

FIGURES87–91. Priceiella (Camurnirmus) rhinocichlae (Eichler, 1957) ex Ianthocincla mitrata major (Robinson and Kloss, 1919). 87, male head, dorsal and ventral views. 88, male genitalia, dorsal view. 89, male mesosome, ventral view. 90, male paramere, dorsal view. 91, female subgenital plate and vulval margin, ventral view.