Neohydatothrips, John

Feng, Qingjing, Wang, Jiayang & Tong, Xiaoli, 2021, Neohydatothrips from China, with one new species and one new record (Thysanoptera: Thripidae), Zootaxa 5057 (4), pp. 562-570 : 562-563

Key to Neohydatothrips species from China

(*based on the original description)

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

-. Antenna 8-segmented.................................................................................. 4

2. Fore wing brown with 3 pale bands, second vein with 2 distal setae; hind tibiae yellow...................... plynopygus

-. Fore wing brown with one sub-basal pale band, second vein without distal setae; hind tibiae dark brown................ 3

3. Abdominal segments bicoloured, tergites V–VI yellow, I–IV and VII–X brown ( Fig. 9 ); sense cone on antennal segments V–VI with wide base............................................................................. xestosternitus

-. Abdominal tergites I–VI brown uniformly, VII–X dark brown ( Fig. 8 ); sense cone on antennal segments V–VI with short base........................................................................................ reticulatus

4. Abdominal tergites I–III and VI with dark brown semi-elliptical areas laterally.................................... 5

- Abdominal tergites without semi-elliptical areas............................................................ 6

5. Occipital apodeme confluent with posterior margin of eyes; male with long elliptical pore plate on sternites VI and VII.................................................................................................. tabulifer

-. Occipital apodeme close to but not confluent with posterior margin of eyes, distance between posterior margin of eyes and occipital apodeme nearly as long as diameter of one ommatidium; male without pore plate on sternites.......... luteolipes

6. Abdominal tergites brown except IV–VI or V–VI yellow...................................................... 7

-. Not above combination of characters..................................................................... 11

7. Abdominal tergites IV–VI yellow; margins of pronotal blotch poorly defined...................................... 8

-. Abdominal tergites V–VI yellow; margins of pronotal blotch well defined........................................ 9

8. Pronotum yellow, blotch indistinct; fore wing second vein with 1 distal seta; abdominal tergites without craspedum on posterior margins....................................................................................... epipactis

-. Pronotum brown, blotch shaded with more closely spaced striae ( Fig. 12 ); fore wing second vein without distal setae ( Fig. 15 ); abdominal tergites with craspedum on posterior margins ( Figs 17 & 18 )............................... sophorae sp. n.

9. Fore wing second vein without distal setae; hind tibiae largely brown.................................... magnoliae

-. Fore wing second vein with 2 distal setae; hind tibiae yellow.................................................. 10

10. Pronotum anterior third transversely reticulate with longitudinal wrinkles; abdominal tergites II–IV without wrinkles among microtrichia................................................................................ flavicingulus

-. Pronotum anterior third transversely elongate reticulate with irregular wrinkles; abdominal tergites II–IV with wrinkles among microtrichia................................................................................... medius *

11. Posterior margin of abdominal tergites with craspedum.............................................. gracilicornis

-. Posterior margin of abdominal tergites without craspedum.................................................... 12

12. Margins of pronotal blotch poorly defined................................................................. 13

-. Margins of pronotal blotch clearly defined................................................................ 14

13. Pronotal blotch indistinct, lighter than pronotum; posterior half of abdominal tergite VII and tergites VIII–IX brown................................................................................................... trypherus

-. Pronotal blotch light brown with margins poorly defined, darker than pronotum, posterior margin concave; posterior half of abdominal tergite VII and tergites VIII–IX yellow.................................................... gracilipes

14. Pronotal blotch bowtie-shaped, anterior and posterior margins strongly concave medially........................... 15

-. Pronotal blotch nearly rectangular or only posterior margin strongly concave medially............................. 16

15. Body mainly yellow ( Fig. 20 ); pronotum yellow with brown blotch; fore wing pale with one short brown band sub-basally, second vein without distal setae ( Figs 20 & 25 )....................................................... tadzhicus

-. Body mainly brown, pronotum light brown with dark brown blotch; fore wing (sometimes micropterous) dark brown with one pale band sub-basally, second vein with 1 distal seta................................................... elaeagni

16. Fore wing brown with 1 pale band, second vein with 2 distal setae............................................. 17

-. Fore wing brown with 3 pale bands, second vein without distal setae................................... samayunkur *

17. Pronotal blotch nearly rectangular, posterior margin straight; median pair of setae situated on antecostal ridge of tergites II– VI........................................................................................... surrufus

-. Posterior margin of pronotal blotch strongly concave medially; median pair of setae situated behind antecostal ridge of tergites II–VI........................................................................................ concavus

Figures

FIGURES 8–9. (8) Abdominal tergites of N. reticulatus; (9) Abdominal tergites of N. xestosternitus (Holotype in NZMC, Beijing).

FIGURES 10–16. Neohydatothrips sophorae sp. n., female: (10) N. sophorae sp. n. female; (11) Head; (12) Pronotum; (13) Meso-& metanotum; (14) Antenna; (15) Fore wing; (16) Metasternal plate.

FIGURES 17–19. Neohydatothrips sophorae sp. n., female: (17) Tergites II–X; (18) Partial tergites III & IV; (19) Sternites VI & VII.

FIGURES 20–27. Neohydatothrips tadzhicus: (20) N. tadzhicus female; (21) Head; (22) Metasternal plate; (23) Pronotum, meso- & metanotum; (24) Antenna; (25) Fore wing; (26) Abdominal tergites; (27) Sternites VII–X (male).