Key to Asprothrips species (females)

1. Abdomen largely white.................................................................................2

-. Abdomen almost uniformly brown........................................................................4

2. Body bicolored, head and thorax dark brown, fore and mid legs brown, hind legs white, abdomen white with paired brown patches on tergite VI (sometimes only faintly visible)................................................ bimaculatus

-. Body white including legs...............................................................................3

3. Head uniformly white, fore wing hyaline, all tarsi 2-segmented..................................... seminigricornis

-. Head brown between compound eyes; fore wing with 2 dark brown bands; fore and mid tarsi 2-segmented, hind tarsi 1-seg- mented..................................................................................... navsariensis

4. Fore wing white with 2 greyish brown bands, submedially and apically; fore and mid tarsi 2-segmented, hind tarsi 1-seg- mented......................................................................................... indicus

-. Fore wing uniformly greyish brown, all tarsi 2-segmented.....................................................5

5. Tergite IX with transverse sculpture bearing microtrichia anteriorly but smooth striate posteriorly, posterior margin medially with pair of long, fine setae (cf. Kudô 1984: fig. 6).................................................. fuscipennis

-. Tergite IX entirely covered with strong transverse sculpture bearing tuberculate microtrichia, posterior margin medially with pair of short horn-like setae (Fig 12) or thick and strong setae (Fig 17)............................................ 6

6. Antennae largely dark brown except for segment I yellowish brown, segment IV longer than VI; posterior margin of tergite IX bears a pair of short horn-like setae; tergite X with incomplete longitudinal dorsal split.................... bucerus sp.n.

-. Antennae largely brown except for IV clear yellow and V with basal half yellow, IV subequal to VI in length; posterior margin of tergite IX bears a pair of thick and strong setae; tergite X with complete longitudinal dorsal split....... punctulosus sp.n.