Key to genera of Frankliniella genus-group

1. Tergites V–VII posteroangular seta arising close to angle or at angle (Fig. 21)..................................... 2

-. Tergites V–VII posteroangular seta arising far from posterior angle (Fig. 20)...................................... 4

2. Tergites V–VII with several short rows of ctenidia (Fig. 24); ocellar setae pair III short and arising between hind ocelli (Fig. 6); eyes without pigmented facets............................................................. Pseudanaphothrips

-. Tergites V–VII with a long row of regular ctenidia (Fig. 26); ocellar setae pair III long (Fig. 3); eyes usually with pigmented facets............................................................................................... 3

3. Fore wing first vein with distal setae widely spaced (Fig. 30); clavus with 3 or 4 veinal setae; pronotum without discal setae (Fig. 13).................................................................................... Iridothrips

-. Fore wing first vein setal row complete (Fig. 29); clavus with 5 veinal setae; pronotum with discal setae (Fig. 9)..................................................................................................... Frankliniella

4. Tergites V–VII without ctenidia................................................................. Firmothrips

-. Tergites V–VII with regular ctenidia, at least VII with ctenidia................................................. 5

5. Ctenidia on tergites VI–VII ending anterior to discal setae S3........................................... Sitothrips

-. Ctenidia on tergites VI–VII ending at median marginal seta (Fig. 22)............................................ 6

6. Ocellar setae III posterior to tangent joining posterior margins of hind ocelli (Fig. 4); fore tibiae each with two short rounded setae...................................................................................... Yaobinthrips

-. Ocellar setae III situated between hind ocelli; fore tibiae without rounded setae.................................... 7

7. Pronotum anteroangular setae as long as posteroangular setae; fore tarsus with tooth at apex of pulvillus; fore wing first vein setal row complete and closely spaced............................................................. Kakothrips

-. Pronotum anteroangular setae shorter than posteroangular setae (Fig. 14); fore tarsus without tooth at apex of pulvillus; fore wing first vein with distal setae widely spaced.................................................. Parabaliothrips