The spelling of the word "Amphismela" can be explained using the International Phonetic Alphabet (IPA). The first syllable "Amphi" is pronounced as /æmfi/, with the "ph" being pronounced as an "f". The second syllable "smela" is pronounced as /smɛlə/, with the "sm" being pronounced as a single consonant sound. Therefore, the correct spelling of this word is "Amphismela", with the stress on the first syllable.