Louangana stellata Wei & Webb 2010

Louangana stellata Wei & Webb, 2010 Figs 3, 4, 5, 6 Louangana stellata Wei & Webb (in Wei et al.), 2010: 33. Description. Head yellow with a five-pointed star-like mark centrally on vertex, more conspicuous in female (Figs 3 D, 5 D). Forewing with a large white transparent patch against costal margin sub-basally (Fig. 3 A, B). External features as in generic description. Male genitalia. Pygofer side wide basally, apex narrow, with numerous macrosetae on posterior area (Fig. 6 A). Anal tube short (Fig. 6 A). Valve approximate trapezoid, nearly 2.5 × as broad as median length (Fig. 6 B). Subgenital plate subtriangular, without macrosetae along lateral margin, length of outer margin about 2.2 × width of base (Fig. 6 B). Aedeagus sinuate in lateral view, without basal apodeme, expanded laterally and lamellate in basal half, shaft tubular, gonopore apical (Fig. 6 C – E). Connective articulated with aedeagus, ‘ T’ shaped in ventral view with stem nearly two-thirds length of arms, arms upturned (Fig. 6 C – E). Style elongate, outer basal arm long and tapered to apex, inner basal arm very short; apical process strongly curved basally and tapered to acute apex; preapical lobe relatively long, lying parallel to apical process (Fig. 6 F). Dorsal connective present in phragma adjacent to base of aedeagal shaft (Fig. 6 D). Female genitalia. Middle width of seventh sternite about 1.6 × middle length, posterior margin slightly sinuate, with a small groove in middle (Fig. 4 B). Pygofer with ventroposterior margin slightly incurved (Fig. 4 A). First valvulae of ovipositor with dorsal sculpture reticulate basally, with sculpturing grading to strigate and concatenate apically (Fig. 4 D, C). Second valvulae with toothed distal section longer and conspicuously broader than fused basal section, more or less parallel-sided, with teeth prominent and evenly spaced, gradually becoming smaller distally, apex of teeth rounded (Fig. 4 E, F). Measurements (mm). Length (including tegmen): ♀, 5.67; ♂, 5.57–5.81. Material examined. China • Guizhou Prov.: 1 ♂ 1 ♀, Anlong County, Xianheping, 28 August 2012, coll. Weibin Zheng (GUGC); 1 ♂, Libo County, Maolan, 8 October 2008, coll. Qiongzhang Song (GUGC); 1 ♂, Libo County, 16 July 2015, coll. Qiongzhang Song (GUGC); 1 ♂, Wangmo County, 22 August 2012, coll. Jiankun Long (GUGC). Distribution. Laos (Louang Namtha), China (Guizhou).