Neopseustis, Meyrick, 1909

Lv, Jun-Xian, Wang, Xing & Huang, Guo-Hua, 2023, A new record family Neopseustidae (Insecta: Lepidoptera) from Chongqing of China, with the first description of the Neopseustis archiphenax female adult, Zootaxa 5257 (1), pp. 170-177 : 171

Key to all nine species of the genus Neopseustis

1 Parameres well developed and narrow..................................................................... 2

- Parameres poorly developed............................................................................. 5

2 Gnathos curved, sickle-shaped........................................................................... 3

- Gnathos distinctly straight.................................................................. .. N. rectagnatha

3 Lateroposterior process of anellus forked, forming two equally thick branches..................................... 4

- Lateroposterior process of anellus forked, one branch slender and another is coarser and S-shaped with serrations on one side........................................................................................ N. archiphenax

4 Branches of lateroposterior process of anellus all slender.............................................. N. meyricki

- One branch of lateroposterior process of anellus sharp and another irregularly serrate....................... N. sinensis

5 Latero-posterior process of anellus apex deeply bifurcate, bending anteriorly........................ .. N. chentangensis

- Latero-posterior process of anellus apex not bifurcate and pointed posteriorly......................................6

6 Valvae with a long, curved, hook-tipped process.................................................... N. moxiensis

- Valvae without a ventral process......................................................................... 7

7 Lateroposterior process of anellus angular, curved inward with sharp tip.......................................... 8

- Lateroposterior process of anellus paddle-shaped, not sharp with rounded tip............................ N. calliglauca

8 Lateroposterior process of anellus apical beyond uncus........................................... N. fanjingshana

- Lateroposterior process of anellus not reach uncus.................................................. N. bicornuta