Key to species of Aduncothrips

(* indicates species placed in the key from descriptions)

1. Antennal segments III–IV with linear sensorium long, reaching to base of segments......................... inauditus *

-. Antennal segments III–IV with linear sensorium not reaching base of segments (Fig. 33)............................. 2

2. Fore wings with longitudinal dark band restricted to wing margins (Fig. 20)....................................... 3

-. Fore wings with longitudinally dark band extending across full width of wing, with base and apex pale (Figs 8, 31)....... 4

3. Fore wings with longitudinal dark band along posterior only............................................ asiaticus *

-. Fore wings with longitudinal dark bands along both anterior and posterior margins (Fig. 20)............ huapingensis sp. n.

4. Metascutum with median pair of setae near middle, submedian pair slightly behind median pair, CPS present (Fig. 32).............................................................................................. kailiensis sp. n.

-. Metascutum with median pair of setae near posterior margin, submendian pair at anterior margin, CPS present or absent (Figs 2, 10)............................................................................................... 5

5. Antennal segment III almost brown, with the base pale; hind tibiae uniformly brown; pronotum not sculptured; metascutum with pair of CPS............................................................................... walkerae *

-. Antennal segment III pale or with apex brown; hind tibiae uniformly pale or with the base of fourth pale; pronotum densely sculptured with transverse lines; metascutum without CPS..................................................... 6

6. Antennal segment III pale (Fig. 9); All tibiae and tarsi pale; pronotum with 3 pairs of posteromarginal setae, S1 setae stouter (Fig. 5)...................................................................................... albus sp. n.

-. Antennal segment III pale with apex brown (Fig. 12); Legs brown, but base of middle tibiae yellowish brown, base fourth of hind tibiae pale; pronotum with 3 pairs of posteromarginal setae, S2 setae stouter (Fig. 14).................... japonicus