Key to known species of Larnaca from China

1 Tegmina micropterous................................................................................. 2

- Tegmina mesopterous.................................................................................. 3

2 Body general blackish brown; posterior margin of male subgenital plate with a V-shaped notch................................................................................ Larnaca (Larnaca) emarginata Bian, Guo & Shi, 2015

- Body yellowish brown; posterior margin of male subgenital plate almost straight................................................................................................. Larnaca (Larnaca) infolda Du, Bian & Shi, 2017

3 Veins black and cells transparent on tegmina, external margin of hind femora with a long furrow....................................................................................... Larnaca (Larnaca) walle Yin & Meng, 2021

- Tegmina broadly orange, external margin of hind femora smooth............... Larnaca (Larnaca) lieyongzhou sp. nov.