Psephenothrips, Reyes, 1994

Wang, Chin-Ling & Lin, Feng-Chyi, 2020, Genera and species of the Liothrips lineage (Thysanoptera, Phlaeothripinae) from Taiwan, Zootaxa 4861 (3), pp. 349-375 : 370-371

Key to Psephenothrips species

(*from descriptions, Reyes 1994, Okajima 2006, Tyagi & Kumar 2012)

1. S1 setae on abdominal tergite IX almost as long as tube or longer........................................ strasseni *

-. S1 setae on abdominal tergite IX shorter than tube........................................................... 2

2. Distal half of antennal segment V, and antennal segments VI–VIII dark brown, same colour as head........ baiheensis sp.n.

-. Antennal segment V, VI yellow with distal portion brownish, VII all brown or with yellow base, VIII brown............. 3

3. Mesopresternum widely separated into 2 parts................................................... cymbidas sp.n.

-. Mesopresternum boat shaped............................................................................ 4

4. Setae po on head much shorter than eye (60–80 microns vs 105–107 microns)............................ cinnamomi *

-. Setae po on head longer or equal to length of eye............................................................ 5

5. MSS present and distinct............................................................................... 6 -. MSS vestigial short or absent............................................................................ 7

6. Pronotal aa setae longer than am setae (43–50 microns vs 28–35 microns).................................. moundi *

-. Pronotal aa setae shorter than am setae (30–40 microns vs 40–50 microns............................... cinnamomi *

7. Antennal segment VIII length 50 microns, segment VII 52 microns....................................... leptocerus

-. Antennal segment VIII length 42 microns, segment VII 63 microns........................................ machili *