Merothripidae from Malaysia: Merothrips with one new species and two new species records Ng, Y. F. Mound, L. A. Zootaxa 2018 2018-04-11 4407 3 447 450 5PF7 Hood 1912 [240,375,1352,1378] Insecta Merothripidae Merothrips GBIF Animalia Thysanoptera 0 447 Arthropoda genus    1. Antennal segments III and IV with sensorium discoidal at external apex ( Fig. 10); antennal segment III 2.5 times as long as wide; pronotum with two pairs of prominent postero-angular setae of which the outer is much shorter than the inner ................. yii  sp.n.  -. Antennal segments III and IV with sensorium transverse around apex ( Fig. 3); antennal segment III less than 2.0 times as long as wide; pronotum with only one pair of prominent postero-angular setae ......................................................................................... 2   2. Pronotum medially with prominent longitudinal sculpture lines that converge medially forming an hour-glass shape ( Fig. 5) ...... ................................................................................................................................................................................................ morgani  -. Pronotum with no sculpture lines medially, with a few transverse lines near posterior margin ........................................ floridensis