111611
One study showed that the roots of some maize plants produce a defense chemical when roots are damaged by leaf beetle larvae ; this chemical was very attractive to the entomopathogenic nematode species " Heterorhabditis megidis " .
 animal: entomopathogenic nematode
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: entomopathogenic nematode 
Answer:
 animal: entomopathogenic nematode