Mermis sp. [Nematoda: Mermithidae] as a Parasite of Zonocerus variegatus linnaeus [Orthoptera: Pyrgo morphidae]
Mermis sp. (Nematoda: Mermithidae) was consistently encountered in dissected specimens of Zonocerus variegatus (Linnaeus) collected at random from the field in the Ile-Ife area of Nigeria. In this study, parasitization at different locations ranged between 0 to 7.58%. Although this parasite may constitute an important factor in the mortality of Z. variegatus, it does not appear to be efficient as a potential biological control tool.