Sinolipeurus sichuanensis Gustafsson & Lei & Chu & Zou 2020, new species
Creators: name: Gustafsson, Daniel R.
name: Lei, Lujia
name: Chu, Xingzhi
name: Zou, Fasheng
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Phthiraptera
Philopteridae
Sinolipeurus
Sinolipeurus sichuanensis

description: Sinolipeurus sichuanensis new species
(Figs 18, 20, 32, 66–68, 87, 91)
Type locality. Szechwan [= Sichuan, China].
Diagnosis. Sinolipeurus sichuanensis n. sp. can be separated from S. tetraophasis by the following characters: (1) head smaller and proportionately more slender in S. sichuanensis (Fig. 20) than in S. tetraophasis (Fig. 19); (2) proximal mesosome small and with distally slightly diverging lateral margins in S. sichuanensis (Fig. 68), but larger and with distally converging lateral margins in S. tetraophasis (Fig. 65); (3) antero-lateral hooks of mesosome more pronounced in S. tetraophasis (Fig. 65) than in S. sichuanensis (Fig. 68); (4) gonopores with different shape (Figs 65, 68); (5) parameres with different shapes (Figs 64, 67).
Description.
Male. Head broad, frons broadly rounded (Fig. 20). Marginal carina slender. Head chaetotaxy as in Fig. 20. Lateral margins of postantennal head converging posteriorly. Thoracic and abdominal plates and chaetotaxy as in Fig. 20. Reticulation only visible on pterosternal plate, metepisterna, and sternal and subgenital plates. Antennae as in Fig. 32; tooth-like projection of scape prominent; rugose area of flagellomere I not visible. Accessory sternal plate present (Fig. 87). Stylus long, slender, spatulate, distal end with sinusoid margins (Fig. 87). Basal apodeme broad, proximal end diffuse (Fig. 66). Proximal mesosome small, square-shaped, lateral margins diverging distally (Fig. 68); distal mesosome with slight submedian lobes, densely rugose; antero-lateral and lateral lobes as in Fig. 68. Gonopore and ventral sclerite as in Fig. 68. Parameres as in Fig. 67; pst2 sensillus. Measurements as in Table 1.
Female. Unknown.
Etymology. The specific epithet is derived from the type locality, Sichuan Province, China.
Type material. Holotype ♂, Szechwan [= Sichuan Province, China], Apr. 1908, R. Meinertzhagen, 3756, NHMUK0106827630 (NHML).
Remarks. The slide containing the holotype of Sinolipeurus sichuanensis also has a female. This specimen differs from the male in the shape and structure of the head and the shape of the pleural incrassations; therefore, we do not regard it as conspecific with the male holotype. That female is similar, but not identical, to females of Reticulipeurus ithaginis we have examined. Thus, we believe the female on slide NHMUK0106827630 may represent an undescribed species of Reticulipeurus from Tragopan temminckii or from an unknown host.
The holotype of Sinolipeurus sichuanensis has asymmetrical sternal plates V–VII. Plates V–VI are fused on one side but separate on the other side, and plate VII is reduced anteriorly on one side (Figs 18, 20). No sts are present on the fused side of sternal plates V–VI, but two setae are present on the non-fused side. We regard these asymmetries to be teratologies in the single male of S. sichuanensis examined.
description: Published as part of 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, pp. 201-255 in Zootaxa 4742 (2) on page 232, DOI: 10.11646/zootaxa.4742.2.1, http://zenodo.org/record/3677719