Sinolipeurus tetraophasis ( Clay, 1938 ) Gustafsson & Lei & Chu & Zou, 2020

Gustafsson, Daniel R., Lei, Lujia, Chu, Xingzhi & Zou, Fasheng, 2020, Review of Chinese species of the Oxylipeurus - complex (Phthiraptera: Philopteridae), with descriptions of two new genera and five new species, Zootaxa 4742 (2), pp. 201-255 : 230-231

Sinolipeurus tetraophasis ( Clay, 1938) new combination

( Figs 19 , 31 , 63–65 , 86 , 95 )

Oxylipeurus tetraophasis Clay, 1938: 186 , fig. 40, pl. XIII: fig. 3.

Reticulipeurus tetraophasis (Clay) ; Złotorzycka 1966: 112.

Oxylipeurus tetraophasis Clay, 1938 ; Price et al. 2003: 204.

Type host. Tetraophasis obscurus (Verreaux, 1869) —Verreaux’s partridge.

Type locality. Yunnan [ China] .

Other host. Tetraophasis szechenyii Madarasz, 1885 —Szechenyi’s partridge.

Description.

Male. Head broad, frons broadly rounded ( Fig. 19 ). Marginal carina slender. Head chaetotaxy as in Figs 19 and 95 . Lateral margins of postantennal head converging posteriorly. Thoracic and abdominal plates and chaetotaxy as in Fig. 19 . Reticulation only visible on pterosternal plate, metepisterna, and sternal and subgenital plates. Antennae as in Fig. 31 ; tooth-like projection of scape prominent; rugose area of flagellomere I small. Accessory sternal plate present ( Fig. 86 ). Stylus long, slender, spatulate, distal end somewhat lanceolate ( Fig. 86 ). Basal apodeme broad, proximal end diffuse ( Fig. 63 ). Proximal mesosome broadly trapezoidal, lateral margins converging distally ( Fig. 65 ); distal mesosome with distinct submedian lobes, densely rugose; antero-lateral and lateral lobes as in Fig. 65 . Gonopore and ventral sclerite as in Fig. 65 . Parameres as in Fig. 64 ; pst2 microsetae. Measurements as in Table 1 .

Female. Not available.

Type material examined. Paratype ♂, Yunnan [ China], Nov.1921, R . Meinertzhagen ,3118, NHMUK010682628 ( NHML) .

Remarks. Clay (1938) described Oxylipeurus tetraophasis based on two males and one female from Tetraophasis obscurus from Yunnan, and one male plus two females from T. szechenyii from Szechuan (= Sichuan) and Yunnan. Clay (1938) quotes that the holotype is in the Meinertzhagen collection, but gives no repository for the other specimens. Judging from other material examined listed by Clay (1938) in a similar manner but deposited in the Meinertzhagen collection, we assume that all the specimens of O. tetraophasis were from that collection as well. However, only four slides with five lice labelled as O. tetraophasis were found in the collection at the NHML: the holotype and one paratype male from T. obscurus , Yunnan; one non-type female from T. obscurus from Kansu; and one male plus one female from Tragopan temminckii from Sichuan. The male from T. temminckii is described below as Sinolipeurus sichuanensis new species, but not the female on the same slide (see below). No specimens from T. szechenyii were found at the NHML, and those examined by Clay (1938) may be lost. We tentatively accept that Sinolipeurus tetraophasis parasitises the two hosts given by Clay (1938) because we have not examined any specimens from T. szechenyii . However, those two hosts do not overlap geographically and their estimated time of evolutionary divergence is 1.75 Myr ( Liu et al. 2014). Additional specimens of Sinolipeurus from T. szechenyii are needed to establish whether the same louse species occurs on both host species.

The non-type female from Tetraophasis obscurus labelled as Oxylipeurus tetraophasis is morphologically different from the holotype male in characters that otherwise seem to be similar between sexes in species of other genera in the Oxylipeurus -complex. Therefore, we are not certain that it is conspecific with the male. If and when more females of Sinolipeurus from T. obscurus are collected, or if the missing female is located, the description of the female of S. tetraophasis in Clay (1938) will have to be reviewed.

Type host. Tragopan temminckii (J.E. Gray, 1831) —Temminck’s tragopan.

Figures

FIGURES 19–20. Male habitus, dorsal and ventral views. 19, Sinolipeurus tetraophasis (Clay, 1938) ex Tetraophasis obscurus. 20, Sinolipeurus sichuanensis new species ex Tragopan temminckii. Legs have been rotated for clarity.

FIGURES 29–32. Male antennae. 29, Reticulipeurus ithaginis (Clay, 1938) ex Ithaginis cruentus. 30, Megalipeurus sinensis new species ex Arborophila gingica. 31, Sinolipeurus tetraophasis (Clay, 1938) ex Tetraophasis obscurus. 32, Sinolipeurus sichuanensis new species ex Tragopan temminckii. All figures drawn to same scale.

FIGURES 57–68. Male genitalia. 57–59, Reticulipeurus ithaginis (Clay, 1938) ex Ithaginis cruentus. 57, full genitalia, dorsal view. 58, paramere, dorsal view. 59, mesosome, ventral view. 60–62, Megalipeurus sinensis new species ex Arborophila gingica. 60, genitalia, dorsal view. 61, paramere, dorsal view. 62, mesosome, ventral view (the V-shaped sclerite is internal, but here is drawn with complete lines to illustrate shape and structure). 63–65, Sinolipeurus tetraophasis (Clay, 1938) ex Tetraophasis obscurus. 63, genitalia, dorsal view. 64, paramere, dorsal view. 65, mesosome, ventral view. 66–68, Sinolipeurus sichuanensis new species ex Tragopan temminckii. 66, genitalia, dorsal view. 67, paramere, dorsal view. 68, mesosome, ventral view. All figures drawn to same scale. Abbreviations: pst1–2 = parameral setae 1–2.

FIGURES 85–87. Male terminalia, ventral views. 85, Megalipeurus sinensis new species ex Arborophila gingica. 86, Sinolipeurus tetraophasis (Clay, 1938) ex Tetraophasis obscurus. 87, Sinolipeurus sichuanensis new species ex Tragopan temminckii.

FIGURES 92–95. Male dorsal temporal chaetotaxy. 92, Cataphractomimus mirapelta new species ex Lophophorus lhuysii. 93, Reticulipeurus robustus (Rudow, 1869) ex Lophura nycthemera. 94, Megalipeurus sinensis new species ex Arborophila gingica. 95, Sinolipeurus tetraophasis (Clay, 1938) ex Tetraophasis obscurus. Reticulation, antennae, coni, nodi, and carinae omitted for clarity. Exact position and size of setae differ slightly among species in each genus. Abbreviations: mts1–5 = marginal temporal setae 1–5; os = ocular setae; pas = preantennal seta; pns = post-nodal seta; pos = pre-ocular seta; pts = posttemporal seta; s1–7 = sensilla 1–7. Figures drawn at different scales.