Orophyllus montanus Beier, 1954

Xie, Hui-Cong, Wang, Han-Qiang, Li, Kai & He, Zhu-Qing, 2021, Taxonomy of genus Orophyllus Beier, 1954 (Orthoptera: Tettigoniidae: Pseudophyllinae), Zootaxa 4990 (1), pp. 147-159 : 150-152

Orophyllus montanus Beier, 1954

Figs 2A–J

Orophyllus montanus: Beier, 1954 , Revision der Pseudophyllinen, 75; Beier, 1962. Das Tierreich, 73: 58; Beier, 1963, Orthopterorum Catalogus, 5: 22; Jin & Xia, 1994, Journal of Orthoptera Research, 3: 25; Liu, Zhou & Bi, 2010, Insects of Fengyangshan National Nature Reserve, 73; Yang, Ye & Huang, 2016, Gene, 575(2): 702–711.

Material examined: 1 male, CHINA, Hainan Prov., Diaoluoshan (109.9°E, 18.66°N), 16–18-ix-2011, coll. Zhu, Liu, Wang & Zhang ( SEM) ; 1 male, CHINA, Guangxi Prov., Damingshan (107.83°E, 22.83°N), alt 1256m, 19– 25-vii-2013, coll. Zhu, Liu, Wang & Zhang ( SEM) ; 1 female, CHINA, Guangxi Prov., Damingshan (107.83°E, 22.83°N), alt 1250m, 19–25-vii-2013, coll. Zhu, Liu, Wang & Zhang ( SEM) ; 2 males, CHINA, Guangxi Prov., Maoershan (110.48°E, 25.88°N), alt 1124m, 11-viii-2020, coll. Xie Hui-Cong ( ECNU) ; 1 female, CHINA, Guangxi Prov., Maoershan (110.48°E, 25.88°N), alt 1124m, 11-viii-2020, coll. Xie Hui-Cong ( ECNU) ; 1 male, CHINA, Guangxi Prov., Jinxiu (110.25°E, 24.16°N), 19-vii-2015, coll. He & Lu ( ECNU) ; 1 male, CHINA, Guangxi Prov., Maoershan (110.48°E, 25.88°N), alt 500–2100m, 1–2-viii-2013, coll. Zhu, Liu, Wang & Zhang ( SEM) ; 2 males, CHINA, Guangxi Prov., Maoershan (110.48°E, 25.88°N), alt 500–2100m, 30-vii–6-viii-2013, coll. Zhu, Liu, Wang & Zhang ( SEM) ; 1 female, CHINA, Guangxi Prov., Maoershan (110.48°E, 25.88°N), alt 500–2100m, 1–2-viii- 2013, coll. Zhu, Liu, Wang & Zhang ( SEM) ; 1 male, CHINA, Guizhou Prov., Xiaodanjiang (108.33°E, 26.33°N), alt 690–800m, 1–2-viii-2015, coll. Zhu, Liu, Wang & Zhang ( SEM) .

Description: Male: Body medium-sized, but very robust. Frons flat, almost square ( Fig. 2A ). Fastigium of vertex conical, with longitudinal furrow, slightly protruding over the edges of the antennae socket ( Figs. 2A, B ). Anterior margin of pronotum slightly convex, posterior margin broadly rounded. Pronotum broad, not granulated. The transverse sulci fine, but rather sharply cut, the rear sulcus slightly behind the middle and flatly curved. The two sulci merged at each side of lateral lobe. Lateral lobes deeper than broad. Pronotum ridged between anterior transverse groove and anterior margin ( Figs. 2B, C ). The ventral edge of prosternum unarmed. Meso- and metasternum strongly transverse, the former with entire, non-crenellated anterior margin and lateral margin ( Fig. 2D ). Tegmina short, isosceles triangular shaped ( Fig. 8 ), the distance of Rs to R 1.5 times longer than Rs to M. M is closer to Cu than Rs ( Fig. 2E ). Rs arising from the R at the base. Hind wings shorter than fore wings, transparent.Anterior femur ventrally with 2–5 inner spines, middle femur ventrally with 4–7 inner spines, hind femur ventrally with 7–9 inner spines, inside of hind femur unicolorous ( Fig. 2H ). Width of epiproct nearly equal to length and slightly concave apically ( Fig. 2F ). Male cerci straight, stout and short, apically sharply incurved and acute. Male subgenital plate apically stalk-shaped, the styli relatively long and narrow, about twice as long as the width, and subacute at its distal part ( Fig. 2G ).

Female: Little difference between the size of females and males. The epiproct long tongue-shaped and slightly concave terminally. Ovipositor robust and short, nearly as long as length of the hind femur, with a straight dorsal and curved ventral edge, the former finely denticulate, the tip area with 2–3 fine, sharp angled folds ( Fig. 2J ). Subgenital plate relatively small, sclerous part split into 2 basal panels and 1 apical lobe, panels are not specialized, the lobe with emarginated apex ( Fig. 2I ).

Measurements (mm): Male: SZ 37.22–42.14, PR 6.07–6.52, FW 30.07–33.57, HF 15.57–16.22; Female: SZ 42.51–46.23, PR 6.73–7.49, FW 33.56–34.97, HF 14.85–16.68, OV 16.15–16.73.

Distribution: Fujian, Hainan, Guizhou, Guangxi.

Figures

FIGURE 2. Morphological features of Orophyllus montanus. A) frons in fronto-ventral view B) head and pronotum in dorsal view C) pronotum in lateral view D) sterna in ventral view E) end of the right tegmina in ventral view F) apex of male abdomen in dorsal view G) male subgenital plate in ventral view H) left hind femora in dorsal view I) female subgenital plate in ventral view J) ovipositor in lateral view. A, B, C, D, F, G, H: male; E, I, J: female. Scale bar= 2mm.

FIGURE 8. Tegmina of all species in the genus Orophullus. Scale bar=1cm