Chirothrips, Haliday, 1836

Rasool, Iftekhar, Alattal, Yehya Zaki & Aldhafer, Hathal M., 2023, Faunistic inventory, identification keys and zoogeographical analysis of the Thysanoptera-Terebrantia of Saudi Arabia, including two new species, Zootaxa 5306 (2), pp. 151-200 : 172

Key to species of Chirothrips from Saudi Arabia

1. Sense cone on antennal segment IV forked; CPS on abdominal tergites posterior to median setae; abdominal segment X elongate, longer than its basal width, ovipositor long, 270–300 microns................................ meridionalis

- Sense cone on antennal segment IV simple; CPS on abdominal tergites usually anterior to median setae; abdominal segment X not elongate, about as long as basal width of segment, ovipositor short, about 150–185 microns...................... .. 2

2. Outer margin of antennal segment II strongly asymmetric, without sense area or cone; pronotum rather slender, about 1.1 times as broad as long; posterior margin of tergites and sternites with teeth-like craspeda............................. faurei

- Outer margin of antennal segment II not strongly asymmetric, with terminal sense area; pronotum rather broad, about 1.5 times as broad as long; posterior margin of tergites and sternites different..................................... …..………3

3. Outer margin of antennal segment II with a distinct sense plate across tip of processes; posterior margin of tergites with a series of independent small lobes; posterior margin of sternites without lobes or tubercles........................ pretorianus

- Outer margin of antennal segment II with terminal sense cone not exceeding tip of process; posterior margin of tergites provided with broad continuous craspeda; posterior margin of sternites with series of tubercles........................ manicatus