chahuapapalotl.

Headword: 
chahuapapalotl.
Principal English Translation: 

night butterfly, moth (see Karttunen)

Orthographic Variants: 
chāhuapāpālōtl
IPAspelling: 
tʃɑːwɑpɑːpɑːloːtɬ
Frances Karttunen: 

CHĀHUAPĀPĀLŌ-TL night butterfly, moth / mariposa nocturna (Z) [(2)Zp.82,150]. See CHĀHU(A), PĀPĀLŌ-TL.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 45.

Attestations from sources in English: 

See also the yohualpapalotl in the Visual Lexicon of Aztec Hieroglyphs, which also seems to translate as "night butterfly" or "moth." (SW)
https://aztecglyphs.wired-humanities.org/content/yohualpapalotl-mh858r