Neohydatothrips, John. The, 1929

Key to species of Neohydatothrips View in CoL from East and South Asia

1. Antenna 7 segmented................................................................................................................................... 2

-. Antenna 8 segmented................................................................................................................................... 5

2. Median pair of setae on pronotal posterior margin forked at apex ......................................... bifurcisetosus

-. Median pair of setae on pronotal posterior margin simple ......................................................................... 3

3. At least certain antecostal ridges on abdominal tergites II–VII pale or absent (fig. 8E)............. plynopygus View in CoL

-. All antecostal ridges on abdominal tergites II–VII dark ............................................................................. 4

4. Abdominal tergites VI–VII lighter than other tergites............................................................. xestosternitus

-. Abdominal tergites I–VII lighter .................................................................................................. reticulates

5. Posterior margins of abdominal tergites with craspedum ......................................................... gracilicornis

-. Posterior margins of abdominal tergites without craspedum ...................................................................... 6

6. Pronotal blotch weakly sclerotized (fig. 6C); abdomen yellow, tergites II–VI with brown areas posterior antecostal ridge laterally................................................................................................................ gracilipes View in CoL

-. Pronotal blotch well sclerotized with clear margin; abdomen entirely brown or with paler and darker tergites ............................................................................................................................................................... 7

7. Forewing second vein with at least 1 seta ................................................................................................... 8

-. Forewing second vein without setae ......................................................................................................... 12

8. Mid and hind tibiae brown ................................................................................................................. medius View in CoL

-. Mid and hind tibiae yellow ......................................................................................................................... 9

9. Abdominal tergite VI paler than other tergites ....................................................................... surrufus View in CoL sp. n.

-. Abdominal tergites VI not paler than other tergites .................................................................................. 10

10. Anterior and posterior margins of pronotal blotch parallel ......................................................... ponyaunpe

-. Anterior and posterior margins of pronotal blotch strongly concave ........................................................ 11

11. Abdominal tergites IV–VI with 47 setae lateral to discal setae III............................................. mitubautugi

-. Abdominal tergites IV–VI with less than 4 setae lateral to discal setae III..................................... elaeagni View in CoL

12. Occipital apodeme touching posterior margin of eyes .............................................................................. 13

-. Occipital apodeme not touching posterior margin of eyes ....................................................................... 14

13. Abdominal tergites IV–V yellow, tergites I–III and VI with brown semi-elliptical areas clearly separated from median yellow areas (fig. 11D)................................................................................................ tabulifer

-. Abdominal tergites without such brown semi-elliptical areas............................................................ kenidai

14. Body bicolored, brown on head, pronotal blotch, most of pteronotum, laterals of tergites I–III, anterior of abdominal tergite IV, and tergites VII–X, the rest parts yellow................................................ samayunkur View in CoL

-. Body pale yellowish, laterals of abdominal tergites II–III and tergite VIII grayish shaded...................... 15

15. Male abdominal sternites III–VI each with a small circular glandular area........................................... latis View in CoL

-. Male abdominal sternites without glandular area........................................................................... trypherus