Cysteochila, Stal, 1873

Souma, Jun & Ishikawa, Tadashi, 2022, Taxonomic review of the tingine genera Cysteochila, Hurdchila, Physatocheila, and Xynotingis from Japan, with description of a new genus (Hemiptera: Heteroptera: Tingidae), Zootaxa 5150 (1), pp. 1-42 : 7

Key to the species of Cysteochila occurring in Japan

The key below is based on the comparison of hundreds of specimens of C. abundantis and the original description ( Scott 1874) and photographs of the holotype of C. monstrosa .

1 Median spine on head reaching level far remote from bases of frontal spines; outer margin of paranotum gently curved outward in its entire length; anterior margin of hemelytron nearly straight in its entire length; costal area slightly narrower than subcostal area at widest part.......................................................... C. abundantis Drake & Poor, 1937

- Median spine on head extending beyond bases of frontal spines; outer margin of paranotum nearly straight in its entire length; anterior margin of hemelytron gently curved outward in its entire length; costal area wider than subcostal area at widest part................................................................................ C. monstrosa ( Scott, 1874)