Are fireflies English or Yin?

Ying. The correct pinyin of fireflies is "yínghuǒchóng", and Mandarin is clearly divided into two groups of vowels with -n and -ng as vowels. Vowels ending in -n are called anterior nasal vowels, and vowels ending in -ng are called posterior nasal vowels. When the word firefly is pronounced, the root of the tongue is close to the soft palate, forming a nasal sound, so the firefly is bright.