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The longest beetle is the Hercules beetle " Dynastes hercules " , with a maximum overall length of at least 16.7 " cm ( 6.6 " in ) including the very long pronotal horn .
 animal: Hercules beetle
Please list all entity words in the text that fit the category.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} 
Answer:
 animal: Hercules beetle