Liothrips, Uzel, 1895

Wang, Chin-Ling & Lin, Feng-Chyi, 2020, Genera and species of the Liothrips lineage (Thysanoptera, Phlaeothripinae) from Taiwan, Zootaxa 4861 (3), pp. 349-375 : 356

Key to Liothrips species from Taiwan

1. Metanotum with reticulate sculpture ( Figs 22 , 31 )........................................................... 2

-. Metanotum with longitudinal sculpture lines ( Fig. 18 )........................................................ 3

2. All tarsi yellow......................................................................... dayulingensis sp.n.

-. Fore tarsi yellow, mid and hind tarsi brown.......................................................... floridensis

3. Maxillary stylets low in head, posterior to po setae........................................................... 4

-. Maxillary stylets retracted to level of po setae.............................................................. 8

4. Po setae short, much less than length of eye; pelta without CPS........................................... vitivorus

-. Po setae about same length as eye, pelta with paired CPS...................................................... 5

5. All tibiae light yellow............................................................................ pallipes

-. Colour of tibiae different, either all brown or brown and yellow................................................. 6

6. Tergite II laterally with 8–10 accessary setae......................................................... takahashii

-. Tergite II laterally with less than 5 accessary setae........................................................... 7

7. Head about 1.8 times as long as wide; fore wings hyaline...................................... threobrevis nom.nov.

-. Head about 1.2 times as long as wide; fore wings grey................................................. brevitubus

8. Pronotal am setae small, much shorter than aa setae.................................................. kuwayamai

-. Pronotal am setae as long as or longer than aa setae.......................................................... 9

9. Pelta without pair of CPS but with 3–4 small setae posterolaterally.................................. heptapleuricola

-. Pelta with 1 pair of CPS, without setae................................................................... 10

10. Pronotal aa setae short, am setae longer than aa setae.............................................. heptapleurinus

-. Pronotal aa setae long, longer or equal to am setae.......................................................... 11

11. Fore wings hyaline; meso and metanotal reticles dense with inner wrinkles................................ hsuae sp.n.

-. Fore wings greyish; meso and metanotal reticles without inner wrinkles.................................... piperinus

Figures

FIGURES 20–27. Liothrips dayulingensis sp.n.: (20) head; (21) pronotum; (22) metanotum; (23) mesopresternum; (24) pelta; (25) tergite II; (26) tube; (27) shape of antenna.

FIGURES 28–34. Liothrips floridensis: (28) head; (29) tergite II; (30) pronotum; (31) metanotum; (32) mesopresternum; (33) pelta; (34) shape of antenna.

FIGURES 13–19. Liothrips brevitubus: (13) head; (14) pronotum; (15) mesopresternum; (16) pelta; (17) tergite II; (18) metanotum; (19) shape of antenna.