Key to genera of Phlaeothrips lineage from Iran

[species of Phlaeothrips not examined]

1. Antennae 7-segmented (Fig. 4); apterous; body surface with sculpture..................................... Idiothrips

-. Antennae 8-segmented (Figs 1, 2, 3 7); apterous or macropterous; body surface with or without sculpture................ 2

2. Antennal segment II clearly constricted at base (Fig. 7); cheeks with warts; forewing without duplicated cilia..... Stictothrips

-. Antennal segment II not so clearly constricted at base (Figs 1, 2, 3); cheeks with or without warts; forewing, if present, with or without duplicated cilia................................................................................ 3

3. Antennal segments III and IV with 3 and 4 sensoria respectively (Fig. 6)….…...................................... 4

-. Antennal segments III and IV with at most 2 and 3 sensoria respectively (Figs 2, 3, 5).............................. 6

4. Macropterous, forewing constricted medially with duplicated cilia (Fig. 20); head with setal bearing tubercles on cheeks (Fig. 9)..................................................................................... Hoplandrothrips

-. Apterous or macropterous, if macropterous, forewing not constricted medially, with or without duplicated cilia (Fig. 21); head with or without setal bearing tubercles on cheeks............................................................ 5

5. Head with prominent setal bearing tubercles on cheeks...................................... Phlaeothrips coriaceus

-. Head without prominent setal bearing tubercles on cheeks (Fig. 11)..................................... Hoplothrips

6. Antennal segment IV with 2 sensoria (Fig. 1); macropterous, forewings with transverse band (Fig. 19); pelta not developed........................................................................................... Aleurodothrips

-. Antennal segment IV with 3 senoria; apterous; pelta developed (Fig. 22)……………..................... Hindsiothrips