Scirtothrips

Masumoto, Masami & Okajima, Shûji, 2007, The genus Scirtothrips Shull (Insecta, Thysanoptera, Thripidae) and three related genera in Japan, Zootaxa 1552, pp. 1-33 : 5

Key to genera of Scirtothrips -genus group in Japan

1. Antennae 6 -segmented (Fig. 4 B) ....................................................................................... Drepanothrips

-. Antennae 7 - or 8 -segmented (cf. Figs. 1 B, 11 B–C)................................................................................. 2

2 (1) Antennae 8 -segmented ............................................................................................................ Scirtothrips

-. Antennae 7 -segmented ............................................................................................................................. 3

3 (2) Abdominal terga and sterna with numerous ciliate microtrichia along lines of sculpture; tergal B 1 setae much longer than distance between their bases ( Fig. 2 B); antennal segment II with two apical distal setae equal in size ( Fig. 1 B); mesonotum with median and submedian setae situated in front of posterior margin ( Fig. 1 C); mesospinasternum narrow but complete ( Fig. 2 A) .............................. Anascirtothrips

-. Abdominal terga and sterna without numerous ciliate microtrichia; tergal B 1 setae much shorter than distance between their bases ( Figs. 7 B & 8 A); antennal segment II with inner dorsal apical seta much longer than outer seta ( Figs. 6 B–C); mesonotum with submedian setae situated near posterior margin ( Fig. 6 D); mesospinasternum eroded at middle ( Fig. 7 A) ...................................... Parascirtothrips nov.