Psylae or Psyllae: How To spell?

The word Psylae is misspelled against Psyllae, which is plural of "Psylla"

Psyllae has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings psy & ae which should not be misspelled with single 'L'
Wrong Spelling:  psy-l-ae 
Correct Spelling:  psy-ll-ae 
Explore spell check of Psyllae to spell without errors.