Grylus or Gryllus: How To spell?
The word Grylus is misspelled against Gryllus, a noun meaning "A genus of insects including the common crickets."
Gryllus has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings gry & us which should not be misspelled with single 'L'
Wrong Spelling:  gry-l-us  Correct Spelling:  gry-ll-us 
Check more misspelled words of Gryllus to spell it correct.