AN ENTOMOPATHOGENIC NEMATODE, STEINERNEMA-MONTICOLUM SP-N (RHABDITIDA, STEINERNEMATIDAE) FROM KOREA WITH A KEY TO OTHER SPECIES

A nematode new to science, S. monticolum sp. n. (Rhabditida: Steinemem atidae) found during a survey of entomopathogenic nematodes conducted throughout the nine provinces of Korea, is described. It can be separa ted from other members of the genus by the length of the rail mucro in adults of both generations, the shape and length of the male spicules and gubernaculum, and the arrangement of the genital papillae. The in fective juvenile can be distinguished from other Steinernema species b y the body width and the value of ratio a (total length divided by gre atest width). An amendment of the specific name of several Steinernema species is presented. A key to the new and other Steinernema species is provided.