Libnotes (Libnotes) Westwood, 1876

Libnotes (Libnotes) Westwood, 1876 . Trans. R. Ent. Soc. London, 1876: 505. Type species: Libnotes thwaitesiana Westwood, 1876, by monotypy.

Key to the Chinese species of the subgenus Libnotes

1. Pleura variegated by blackened or infuscated areas ............................................................................................................................. 3 Pleura without blackened or infuscated areas.......................................................................................................................................2

2. Prescutum unmarked............................................................................................................................................................................ 4 Prescutum with stripes .........................................................................................................................................................................5

3. Abdominal tergite with median stripe .................................................................................................................................................. 6 Abdominal tergite without median stripe .............................................................................................................................................7

4. Abdomen orange-yellow, the lateral line narrowly infused; hypopygium dark brown (Alexander, 1923: 468)..................................... ............................................................................................................................. L. (L.) subopaca Alexander, 1923 (China: Taiwan) Abdomen entirely light yellow; hypopygium entirely light yellow (Alexander, 1934: 41).................................................................... ........................................................................................................................ L. (L.) basistrigata (Alexander, 1934) (China: Fujian)

5. Prescutum with one median stripe (Alexander, 1930: 61)........................... L. (L.) recurvinervis (Alexander, 1930) (China: Sichuan) Prescutum with at least two stripes ......................................................................................................................................................8

6. Prescutum with four reddish-brown stripes; femora with tip yellow (Alexander, 1949: 529)................................................................ ................................................................................................................................ L. (L.) apitata (Alexander, 1949) (China: Fujian) Prescutum without stripe; femora with tip darkened (Alexander, 1921: 180) ........................................................................................ ................................................................................................. L. (L.) longistigma Alexander, 1921 (China: Taiwan; Japan, Russia)

7. Antennae uniformly colored ................................................................................................................................................................ 9 Antennae with scape black, flagellum light brown or brown ............................................................................................................. 10

8. Antennae black throughout; abdomen brownish-black throughout (Alexander, 1934: 42) .................................................................... ............................................................................................................................ L. (L.) griseola (Alexander, 1934) (China: Taiwan) Antennae brown throughout; abdomen festucine-yellow with tergites narrowly pale in lateral margins (Fig. 5) .................................. ............................................................................................................................................................. L. (L.) pseudonohirai sp. nov.

9. Femora with subterminal ring ............................................................................................................................................................ 11 Femora without subterminal ring (Alexander, 1936: 123) ........................ L. (L.) quinquecostata (Alexander, 1936) (China: Hainan)

10. Femora with subterminal ring ............................................................................................................................................................12 Femora without subterminal ring (Fig. 1) ...................................................................................................... L. (L.) wanensis sp. nov.

11. Pleura with a black dot beneath the root of the wing; prescutum without stripe (Edwards, 1916: 355)................................................. ................................................................................................................... L. (L.) limpid Edwards, 1916 (China: Taiwan; Malaysia) Pleura without black dot; prescutum with a pair of stripes (Alexander, 1935: 141)............................................................................... .................................................................................................................. L. (L.) comissabunda (Alexander, 1935) (China: Taiwan)

12. Pleura with one narrow brownish-black stripe (Alexander, 1943: 175) .......... L. (L.) sappho (Alexander, 1943) (China: Guangdong) Pleura with two narrow dark brown stripes (Alexander, 1949: 530)..................... L. (L.) tszi (Alexander, 1949) (China: Guangdong)