Arria Stal, 1877

Arria Stål, 1877: 46; Tinkham 1937: 497; Zhang 1987: 239; Zhou and Shen 1992: 62; Wang and Bi 1991: 125; Wang 1993: 114; Mukherjee and Ghosh 1995: 251; Ehrmann 2002: 72, 259, 298; Xu 2007: 244; Ge and Chen 2008: 53; Schwarz and Roy 2018: 456; Schwarz and Roy 2019: 141.

Type species.

Arria cinctipes Stål, 1877, original designation.

Diagnosis.

Body medium and slender (Fig. 7), female stronger than male. Head narrowly transverse with juxtaocular bulges; compound eyes broadly oval, prominent; ocelli large in male (Fig. 8), minute in female. Lower frons transverse, 3.3-4.2 times as wide as high. Antennae filiform, long in male, much shorter in female. Forefemur slender, with 4 discoidal, 10-13 anteroventral and 4 posteroventral spines; foretibia with 7-9 anteroventral and 4-7 posteroventral spines. Pronotum short with supracoxal dilatation well marked, lateral margins with small denticles in male and strongly tuberculate in female. Forewing narrow with narrowly rounded apex, CuA branches no less than 5, L/W ratio is 4.3-5.5; fore margin with widely spaced cilia, hindwing with pointed apex, vein M with brunet band near the tip; both pairs of wings fully developed and exceeding the end of abdomen in male (Fig. 9); female apterous. Sclerite L4A approximately rhomboidal, males with terminal lobe (tl) of ventral phallomere fused to vla, protruding as a truncate lobe, close to sdpm ventrad; sdpm short; right phallomere with large pia and ear-shaped pva. Styli close to each other (Fig. 4).