Bulfly or Bullfly: How To spell?
The word Bulfly is misspelled against Bullfly, a noun meaning "Any large fly troublesome to cattle, as the gadflies and breeze flies."
Bullfly has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings bu & fly which should not be misspelled with single 'L'
Wrong Spelling:  bu-l-fly  Correct Spelling:  bu-ll-fly 
Check more misspelled words of Bullfly to spell it correct.