Ectadia, Brunner von Wattenwyl, 1878

Chun-Xiang, Liu, Le, Kang & Xian-Wei, Liu, 2004, The Genus Ectadia Brunner Von Wattenwyl (Orthoptera: Tettigoniidae: Phaneropterinae), With Descriptions Of Three New Species From China, Raffles Bulletin of Zoology 52 (1), pp. 37-43 : 38

KEY TO THE SPECIES OF ECTADIA

1. Tegmen with whitish ridge on costal margin; male cerci straight, long, with inner median denticles and narrowed apex ......................... Ectadia pilosa Brunner von Wattenwyl, 1878

– Tegmen without whitish ridge on costal margin; male cerci with the widest base, basal 1/3 area sharply acuminated, then gradually narrowed till the apex, its shape as yataghan, and without inner median denticles (Figs. 17-19) ....................... 2

2. Hind wing shorter than tegmen; tegmen with sharp apex (Fig. 1); ovipositor more than 2.5mm in width (Fig. 23) ................................................... Ectadia apicalis , new species

– Hind wing longer than tegmen; tegmen with approximately rotund apex (Figs. 2-5); ovipositor less than 2.0mm in width ................................................................................................. 3

3. Male stridulatory file strongly cambered, with circa 20 rather thick teeth in the basal half area and 50 - 60 narrowly spaced fine teeth in the apical half area (Fig. 7). Hind wing of female slightly longer than tegmen; ovipositor 8mm long, 2. 5 times longer than pronotum (Fig. 2 4) .................................................... Ectadia sulcata Xia & Liu, 1989

– Male stridulatory file not as in Fig. 7. Hind wing of female distinctively longer than tegmen; ovipositor 5-6mm long, not 2.5 times longer than pronotum (Fig. 25) ............................. 4

4. Supra-anal plate nearly semicircular, lateral margin slightly convex; male stridulatory file not “S”-shaped ...................... 5

– Supra-anal plate approximately rectangular; male stridulatory file slightly “S”-shaped, as in Fig. 8 ............................................ .......................... Ectadia fulva Brunner von Wattenwyl, 1893

5. Male stridulatory file slightly curved; circa basal 1/4 area with 10 - 15 moderately spaced large teeth, middle 2/4 area with densely spaced fine teeth, apical 1/4 area commonly undeveloped without or with 1-4 widely spaced irregular large teeth (Fig. 9) ........................ Ectadia obsolescens , new species

– Stridulatory file slightly sinuate; circa basal 1/2 area with densely spaced fine teeth, following 1/6 area with 4 densely spaced large teeth, apical 2/6 area with densely spaced large teeth, which are gradually decreasing in size towards apex (Fig. 10) ...................................................... Ectadia sinuata , new species