Psalidothrips

Key to Psalidothrips species from China

1. Antennal segment III with 2 sense cones .................................................................................................... 2

- Antennal segment III with 3 sense cones .................................................................................................... 4

2. Antennal segment IV with 3 sense cones; glandular area shuttle-shaped on abdominal sternite VIII of male (Fig. 8) ........................................................................................................................ P. elagatus sp. n.

- Antennal segment IV with 2 sense cones; glandular area on abdominal sternite VIII of male not shuttle- shaped ......................................................................................................................................................... 3

3. Cheeks slightly widened at base of head; postocellar setae short, usually less than 20 microns; glandular area on abdominal sternite VIII of male transversely elongated ......................................... P. simplus Haga

- Cheeks weakly narrowed at base of head; postocellar setae usually more than 20 microns; glandular area on abdominal sternite VIII of male narrow and arched ............................... P. chebalingicus Zhang & Tong

4. Antennal segment IV with 3 sense cones ................................................................................................... 5

- Antennal segment IV with 4 sense cones ................................................................................................... 8

5. Fore tarsal tooth present in both sexes ........................................................................................................ 6

- Fore tarsal tooth absent in female ............................................................................................................... 7

6. Tube brown; abdominal segments IV to IX yellowish brown; antennal segment VIII longer than VII (Fig. 18) ..................................................................................................................................... P. longidens sp. n.

- Tube brownish yellow; abdominal segment IX brown; antennal segment VIII almost as long as VII........ ....................................................................................................................................... P. armatus Okajima

7. Postocular and epimeral setae with apices expanded; cheeks constricted behind eyes ..... P. amens Priesner

- Postocular and epimeral setae with apices pointed; cheeks almost straight, not constricted behind eyes (Fig. 11) ......................................................................................................................... P. bicoloratus sp. n.

8. Antennal segments IV-VIII yellowish; B1 of abdominal tergum IX much shorter than B2 and tube ............ .......................................................................................................................................... P. lewisi (Bagnall)

- Antennal segments III-VIII yellowish brown; B1 of abdominal tergum IX longer than B2 and tube........... ............................................................................................................................. P. ascitus (Ananthrishnan)