male adult.Carmine stained..2- 5 mm. in length witha strong ventrallycurved tail.·Anterior end showingcervical alae.·Rhabditiformesophagus
•Carmine stained. •2- 5 mm. in length with a strong ventrally curved tail. •Anterior end showing cervical alae. •Rhabditiform esophagus. male adult
cervical alaeAnterior end of female adultcervical alae
Anterior end of female adult cervical alae cervical alae
透明胶纸方法检查的虫卵虫卵【egg]无色透明，窄长形，一侧平另侧稍凸出，卵壳由二层壳质组成卵内含有一条幼虫