Key to Adraneothrips from eastern Asia and Australia

[* included from published descriptions]

1. Wings absent; antennal segments III and IV each with 2 sensoria...................................... madrasensis

-. Wings present; segment IV with 3 or 4 sensoria (except possibly bambusae)...................................... 2

2. Fore wings without duplicated cilia....................................................................... 3

-. Fore wings with duplicated cilia.......................................................................... 8

3. Body more or less uniformly brown (Figs 4, 9).............................................................. 4

-. Body distinctly bicoloured yellow and brown (Figs 6–8, 11, 12, 15).............................................. 5

4. Mid and hind femora brown (Fig. 9); antennal segment III with 3 sensoria................................. nilgiriensis

-. Mid and hind femora as yellow as tibiae (Fig. 4); antennal segment III with 2 sensoria.................... darwini sp. n.

5. Body largely yellow in contrast to brown tube...................................................... bambusae *

-. At least head uniformly brown........................................................................... 6

6. Abdominal segments I–III, VI–VII, IX and tube uniformly yellow, in contrast to brown head, pterothorax, abdominal segments IV–V and VIII (Fig. 8) [male sternite VIII with pair of pore plates (Figs 35, 65].......................... makilingensis

-. At least abdominal segment III and tube brown.............................................................. 7

7. Abdominal segments VII–IX dark brown (Fig. 15)............................................. yunnanensis sp. n.

-. Abdominal segments VII–IX paler, at least VIII yellow (Figs 11, 12)....................................... russatus

8. Body uniformly yellow.......................................................................... elegans *

-. Body uniformly brown or bicoloured yellow and brown....................................................... 9

9. Body more or less uniformly brown (Figs 2, 5)............................................................. 10

-. Body distinctly bicoloured yellow and brown (Figs 3, 13)..................................................... 17

10. Compound eyes unusually long dorsally, more than 0.5 of head length...................................... laticeps *

-. Compound eyes dorsal length no more than 0.45 of head length.............................................. 11

11. Antennal segment III with 2 sensoria, IV with 4....................................................... setosus *

-. Antennal segment III with 3 sensoria, IV with 3 or 4......................................................... 12

12. Antennal segment IV with 3 sensoria.............................................................. disjunctus

-. Antennal segment IV with 4 sensoria................................................................... 13

13. Pronotal anteromarginal setae pointed at apex, shorter than anteroangulars; fore wing sub-basal setae S3 sharply pointed at apex [femora brown, tibiae brown with apex yellow; postocular setae much shorter than half length of eye; male sternite VIII with pair of pore plates laterally].................................................................. infirmus *

-. Pronotal anteromarginal setae expanded at apex, almost as long as anteroangulars; fore wing sub-basal setae S3 capitate or blunt at apex....................................................................................... 14

14. Femora “golden yellow with brownish shade”; “fore and hind tibiae yellow, mid tibae yellow with shaded brown”...................................................................................................... okajimai *

-. At least fore and mid femora brown (Figs 1, 2, 14); all tibiae yellow............................................ 15

15. Hind femora brown with basal 1/3 yellow (Fig. 2), fore and mid femora brown with extreme apex yellow; male sternite VIII with large entire pore plate (Fig. 34)............................................................... chinensis

-. Femora brown; male sternite VIII with or without pair of pore plates............................................ 16

16. Pronotum with notopleural sutures complete; pronotum medially without sculpture; male abdominal sternite VIII without pore plate (Fig. 33)................................................................................. braccatus

-. Pronotum with notopleural sutures incomplete; pronotum medially with sculpture lines; male abdominal sternite VIII with pair of pore plates................................................................................. waui sp. n.

17. Antennal segment III with 3 sensoria.................................................................... 18

-. Antennal segment III with 2 sensoria..................................................................... 19

18. Antennal segment III yellow at base with apex shaded brown (Fig. 13); segment IV brown with base yellow; campaniform sen- silla on pelta at least 12 times their diameter apart..................................................... stannardi

-. Antennal segment III yellow with basal third weakly shaded (Fig. 3); segment IV uniformly brown; campaniform sensilla on pelta scarcely 4 times their diameter apart (Fig. 27)................................................... coloratus

19. Antennal segment IV with 4 sensoria..................................................................... 20

-. Antennal segment IV with 3 sensoria..................................................................... 21

20. Head uniformly brown (Fig. 6); abdominal segments I, VII and IX brown; antennal segment VI largely yellow with apical third brown; fore wing sub-basal setae S3 expanded at apex (Fig. 52); postocular setae about as long as half length of eye (Fig. 49)............................................................................................. hani sp. n.

-. Head bicoloured, yellow but brownish laterally; abdominal segments I, VII and IX largely yellow; antennal segment VI brown with base yellow; fore wing sub-basal setae S3 pointed at apex; postocular setae shorter than half length of eye..... inflavus *

21. Antennae elongated, segment III about 4 times as long as wide; antennal segments III–IV almost equally light brown................................................................................................... antennatus

-. Antennal segment III about 2.5 times as long as wide; antennal segment III yellow, IV dark brown with basal third yellow. 22

22. Pronotum brown (Fig. 10); abdominal segments II and VI yellow, the rest brown............................... pteris

-. Pronotum yellow (Fig. 7); abdominal segments I–II, V–VI and VIII yellow.................................. limpidus