Sumruayphol Suchada, Chittsamart Boonruam, Polseela Raxsina, Sriwichai Patchara, Samung Yudthana, Apiwathnasorn Chamnarn, Dujardin Jean-Pierre
Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, 10400 Bangkok, Thailand.
Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, 10400 Bangkok, Thailand.
C R Biol. 2017 Jan;340(1):37-46. doi: 10.1016/j.crvi.2016.10.002. Epub 2016 Nov 24.
Geographic populations of the two main sandflies genera present in Thailand were studied for species and population identification. Size and shape of Phlebotomus stantoni and Sergentomyia hodgsoni from different island and mainland locations were examined by landmark-based geometric morphometrics. Intraspecific and interspecific wing comparison was carried out based on 12 anatomical landmarks. The wing centroid size of P. stantoni was generally larger than that of S. hodgsoni. Within both species, wings from the continent were significantly larger than those from island populations. Size variation could be significant between geographic locations, but could also overlap between genera. The wing venation geometry showed non-overlapping differences between two species. The within-species variation of geometric shape between different geographical locations was highly significant, but it could not interfere with the interspecies difference. The lack of species overlapping in shape, and the high discrimination between geographic populations, make geometric shape a promising character for future taxonomic and epidemiological studies.
对泰国存在的两个主要白蛉属的地理种群进行了物种和种群鉴定研究。通过基于地标点的几何形态测量学，检查了来自不同岛屿和大陆地点的斯氏白蛉和霍氏司蛉的大小和形状。基于12个解剖学地标点进行了种内和种间翅的比较。斯氏白蛉的翅质心大小通常大于霍氏司蛉。在这两个物种中，来自大陆的翅明显大于来自岛屿种群的翅。地理位置之间的大小变化可能很大，但属之间也可能存在重叠。翅脉几何形状显示两个物种之间存在不重叠的差异。不同地理位置之间几何形状的种内变化非常显著，但不会干扰种间差异。形状上缺乏物种重叠，以及地理种群之间的高区分度，使得几何形状成为未来分类学和流行病学研究的一个有前景的特征。
