mantis vs phasmid

mantis

noun
  • Any of various large insects of the order Mantodea that catch insects or other small animals with their powerful forelegs. 

  • A green colour, like that of many mantises. 

phasmid

noun
  • Any insect of the order Phasmida: a leaf insect or walking stick (stick insect). 

  • A phagemid. 

  • Either of the two caudal chemoreceptors in some nematodes. 

How often have the words mantis and phasmid occurred in a corpus of books? (source: Google Ngram Viewer )