Three new species of black flies from Thailand, Simulium wangkwaiense, S. tadtonense and S. maeklongkeense, are described based on their adults, pupal exuviae and cocoons. All three new species are assigned to the Simulium (Simulium) striatum species-group, bringing its total number in Thailand to seven. Simulium wangkwaiense sp. nov. is the species formerly called S. quinquestriatum in Thailand. Certain male and pupal morphological characteristics are shown to separate all seven Thai species of this species-group. All of the three new species have been analyzed genetically for their phylogenetic relationships, with three known related species (except for S. thailandicum), by using the fast-evolving nuclear big zinc finger (BZF) gene.

根据它们的成年，ex虫和茧，描述了来自泰国的三种新黑蝇，即Simulium wangkwaiense，S.tadtonense和S.maeklongkeense。所有这三个新物种均被指定为Simulium（Simulium）纹状体物种组，从而使其在泰国的总数达到7个。Simulium wangkwaiense sp。十一月 是泰国以前称为S. quinquestriatum的物种。某些雄性和p的形态特征已显示出将这一物种组的所有七个泰国物种分隔开。已经对这三个新物种的全部系统发育关系进行了遗传分析，并与三个已知的相关物种（除了S. thailandicum）中，通过使用快速发展的核大的锌指（BZF）基因。