中国肩花蝽属雌性交配管的形态研究(半翅目:异翅亚目:花蝽科)

A morphological study on female copulatory tubes of the genus Tetraphleps Fieber (Hemiptera: Heteroptera: Anthocoridae) from China

半翅目花蝽科(Anthocoridae)昆虫的种类鉴定通常是以雄性外生殖器特征为主,雌虫的种类鉴定一直是研究中的难点。本文研究了中国肩花蝽属Tetraphleps已知5个种雌虫的交配管,包括黑色肩花蝽T.aterrimus(Sahlberg)、斑翅肩花蝽T.galchanoidesGhauri、毛肩花蝽T.pilosulusBuetZheng、直长肩花蝽T.parallelusBuetZheng和玉龙肩花蝽T.yulongensisBuetZheng。发现交配管的构造在种内变异小、特征稳定,而在种间差别明显,可作为该属雌虫种类鉴定的可靠依据。

The identification of flower bugs (Anthocoridae) is mostly based on characteristics of male genitalia, and it is believed that it is difficult to identify species based on females solely. Female copulatory tube of five known species of the genus Tetraphleps Fieber from China, including T. aterrimus (Sahlberg), T. galchanoides Ghauri, T. pilosulus Bu et Zheng, T. parallelus Bu et Zheng and T. yulongensis Bu et Zheng, were studied and compared. The result demonstrates that the structure of female copulatory tube in the same species is steady, whereas they differ distinctly between species. Therefore, copulatory tube can be used as a credible character in identifying species of this genus.