Jacobsonina Hebard, 1929: 56. Type species: Jacobsonina simplex Hebard, 1929. Roth 1993: 282; Wang et al. 2009: 751; Wu et al. 2014: 275.
Generic diagnosis (Mainly after Roth (1993), Wang et al. (2009) and Wu et al. (2014)) . Sexual dimorphism indistinct. Body small, usually yellowish brown. Interocellar distance slightly wider than the distance between the eyes, narrower than the distance between antennal sockets. Pronotum subelliptical, equal in length to width, disc usually with symmetrical spots and stripes. Tegmina and wings fully developed, both extending beyond the end of abdomen. Anteroventral margin of front femur Type B 3. Tarsal claws symmetrical and unspecialized. Abdominal terga of male unspecialized, or only the seventh or first tergum specialized, with a glandular area. Supra-anal plate symmetrical, paraprocts dissimilar. Male subgenital plate asymmetrical, without styli. Accessory sclerites complicated.
1 Body black............................................................. J. erebis Wu, Yue, Qie & Liu, 2014
- Body not black....................................................................................... 2
2 Male subgenital plate with thorny protrusion................................................................ 3
- Male subgenital plate with smooth protrusion.................................... J. arca Wang, Jiang & Che, 2009
3 Male subgenital plate with square protrusion......................................... J. platysoma (Walker, 1868)
- Male subgenital plate with arcuate protrusion............................................................... 4
4 Hook phallomere without accessory sclerite.................................. J. tortuosa Wang, Jiang & Che, 2009
- Hook phallomere with accessory sclerite................................................................... 5
5 Accessory sclerite of hook phallomere brush-shaped....................... J. aliena (Brunner von Wattenwyl, 1893)
- Accessory sclerite of hook phallomere not brush-shaped...................................................... 6
6 Only one accessory sclerite of hook phallomere, irregular square................................................ 7
- Two accessory sclerites of hook phallomere, one blunt triangle-shaped, the other bluntly quadrate............................................................................................. J. ericonvexa Yao & Che, sp. nov.
7 Right phallomere with three accessory sclerites, one with lots of wrinkles................. J. plicata Yao & Che, sp. nov.
- Right phallomere with four accessory sclerites, one brush-shaped.................. J. subapiculata Yao & Che, sp. nov.