Skwala flavata Zhang, Li and Li, 2025

Skwala flavata Zhang, Li and Li sp. n.

Type material

Holotype. 1♂, China: Shaanxi Province: Xi’an City, Huyi District, Taiping National Forest Park , 33.905°N, 108.647°E, 5 April 2020, leg. Li Wei-Hai and Yan Yan-Hua ( HIST). GoogleMaps

General colour dark brown. Hemitergal lobe yellow, short, generally triangular with widely notched edge. Epiproct roughly rod-like, apex hooked. Aedeagus membranous, slender and tubular in lateral

Description

Adult habitus. ( Figure 1 View Figure 1 (a)). General body colour dark brown. Head black, a trapezoidal brownish originating between the posterior ocelli and terminating anterior to the pronotum; a yellow brown marking present behind compound eye. M-line shallow and brown. Triocellate, anterior ocellus Antennae brown, basal segments darker, palpi brown. Pronotum dark brown, disc with obscure and narrow pale medial stripe ( Figure 1 View Figure 1 (a)). Legs tri-coloured: femur black with yellow-brown distal tibia brown with basal and distal portion darker, tarsal segments brown. Wings subhyaline, veins

Male. ( Figures 1 View Figure 1 (b), 2). Fore wing length 10.4 mm, hind wing length 8.7 mm (N = 1). Abdominal terga brownish and terga 1–2 less pigmented. Tergum 9 bearing two elevated paramedial patches of sensilla long hairs on the posterior margin, the patches separated by a narrow bald mesial area ( Figure 1 View Figure 1 (b)).

10 bilobate, hemitergal lobe yellow, short, generally triangular in dorsal view, with the inner edge

HISTORY connected to the epiproct apically ( Figure 1 View Figure 1 (c)). Epiproct roughly rod-like, apex slightly enlarged a downcurved hook, heavily sclerotised ventrolaterally, apex with an enlarged anterior membranous Lateral stylet blade-like and oriental anteriorly, apex sharp and slightly downcast ( Figures 1 View Figure 1 (c,d)).

mostly membranous, basal two-thirds robust with two lateral extended lobes before tapering apical where brown spinules occur. In lateral view the aedeagus slender and tubular, apical portion slightly dorsally ( Figure 2 View Figure 2 (a–c)).

Female. Unknown.

Etymology

The specific name refers to the hemitergal lobe being yellow, which differs dramatically hemiterga.

Remarks

The only Chinese species of Skwala , S. compacta ( McLachlan, 1872) , is also a dark species a short hemitergal lobe, but the new species has an unusual narrower pronotal band than S. compacta . The Japanese species, Skwala natorii Chino, 1999 , also has an anteriorly hooked

Distribution

The new species is currently known only from Shaanxi Province, China.