Key to the species of Hierodulinae from China

(modified from Schwarz, Ehrmann & Shcherbakov 2018)

1. Forefemur with 5 posteroventral spines; afa membranous, S-shaped, covered by long and dense setae (genus Mekongomantis Schwarz, Ehrmann & Shcherbakov, 2018)................. M. quinquespinosa Schwarz, Ehrmann & Shcherbakov, 2018

- Forefemur with 4 posteroventral spines................................................................... 2

2. Pronotum with a significant lateral expansion.............................................................. 3

- Pronotum without significant lateral expansion............................................................. 6

3. metazona about two times as long as prozona; tsg of inner forefemur pigmented; L4A with a simple long sdpl; afa simplified, not distinctly bilobed ( Rhombomantis Ehrmann & Borer, 2015)................................................ 4

- metazona more than two times as long as prozona; L4A with a simple sdpl; afa branching into distinct two parts ( Rhombodera Burmeister, 1838).................................................................................... 5

4. The length of pronotum is about 1.5 times as long as its widest point; inner forecoxa with bicoloured blue-white band..................................................................... R. longipennis Wang, Ehrmann & Borer, 2021

- The length of pronotum is about 2 times as long as its widest point; inner forecoxa unicolour.... R. fusca (Lombardo, 1992)

5. The length of the pronotum nearly equal to its width, and the width about 2 times as long as the width of head; pafa robust and short, with its apex not longer than loa............................................. R. latipronotum Zhang, 1990