Morphology and Distribution of the Antennal Sensilla of Two Species, <i>Megalurothrips usitatus</i> and <i>Thrips palmi</i> (Thysanoptera: Thripidae)
Xiao-Shuang Wang,
Ali Shaukat,
Yun Han,
Bo Yang,
Liang-De Tang,
Jian-Hui Wu
Affiliations
Xiao-Shuang Wang
Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
Ali Shaukat
Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
Yun Han
Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
Bo Yang
Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
Liang-De Tang
Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
Jian-Hui Wu
Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
The morphology and distribution of the antennal sensilla of Megalurothrips usitatus Bagnall and Thrips palmi Karny were examined using scanning electron microscopy (SEM). These are serious pests of various economically important crops, and their antennae are important in chemical communication. The antennae of both species consist of a scape, pedicel, and flagellum, but the flagellum of M. usitatus is made up of six sub-segments, whereas that of T. palmi consists of five sub-segments. Seven morphological sensilla types, including Böhm bristle (BB), sensilla campaniformia (Sca), three types of sensilla basiconica (Sb1, Sb2 and Sb3), two types of sensilla chaetica (Sch1 and Sch2), sensilla styloconica (Sst), sensilla trichodea (St), and sensilla cavity (Scav), were recorded in both species. The scape and pedicels exhibited Sch1, BB and Sca. The flagellum exhibited two types of Sch, three types of Sb, St, Sst and Scav. Based on these results, the putative function of the sensilla of M. usitatus and T. palmi are also discussed.
