Bioacoustics of Meiyingia holzschuhi

Description. Male . Habitus as shown in Fig. 2 B. Body elongate, compressed and moderate-sized, 13.8 mm long, 2.3 mm wide between humeri. Head, antennae, stridulating organ, scutellum, elytra, and legs black; dark green luster distinctly present on elytra, while inconspicuously present on head and legs (green luster changed to blue after contacting EtOH solution). Pronotum ( Fig. 3 C) reddish-brown, with a boldfaced T-shaped spot, almost attaining basal margin along median line. Apex of tarsi dark brown. Pubescence on head and pronotum less distinct. Pubescence on antennae short, dense and brown; ventral side of all antennomeres except XI fringed with long setae. Pubescence on elytral surface uniform, short, dense and pale brown. Pubescence on legs and ventral surface of body distinctly longer. Head compressed, coarsely punctate and with coarse grain, narrower than pronotum at widest point. Frons transverse, nearly flat. Eyes small, finely facetted, divided into two widely separated lobes; lower lobes longer than genae. Interantennal region strongly concave between strongly elevated antennal tubercles. Antennae extending beyond elytral apex by 3 antennomeres; length ratio of antennomeres from base to tip: 5.5-1.0-8.8-7.8-7.0-6.4-5.9-4.3-3.7-3.1- 3.3; scape stout and cylindrical, surface with coarse grain; antennomere III longer than scape and IV; antennomeres III to V with distinct spiny processes on ventral side, and distinctly reduced on antennomeres VI and VII. Pronotum with ratio of length / width = 1.02, disc slightly convex and sparsely punctate; each side convex posteriorly, surface with wrinkles, especially distinct near anterior and posterior margins. Stridulatory organ ( Fig. 3 D) subtrapezoidal, surface glabrous, but with dense, fine, transverse stridulatory file. Scutellum ( Fig. 3 D) ligulate, concave at middle, surface glabrous but microreticulate. Elytra 4.2 times longer than humeral width, narrowing towards apices; apices narrowly rounded; disc punctate and with coarse grain. Profemora stouter than meso- and metafemora. Metafemora exceed the posterior edge of second visible abdominal segment. 1st metatarsomere longer than following two tarsomeres combined. Metasternum with a longitudinal depression at posterior half along midline. Prosternal process distinctly short. Abdomen finely punctate. Tergite VIII ( Fig. 4 A) with round posterior edge bordered with long setae. Sternite VIII ( Fig. 4 A) with round posterior edge, bordered with much shorter setae. Sternite IX ( Fig. 4 A) ‘Y’-shaped. Male genitalia as shown in Figs. 4 B–D. Lateral lobes ( Fig. 4 E) of tegmen moderately elongate, widely subrounded at apex with long setae. Median lobe stout, median struts more than half length of median lobe; ventral plate longer than dorsal plate; ventral plate ( Fig. 4 F) with apex narrowly rounded. Endophallus with rod anchor-shaped at base ( Fig. 4 G). Female . Unknown.