cuatecomatl.

Headword: 
cuatecomatl.
Principal English Translation: 

a large head or an aquatic fly (see attestations)

Attestations from sources in English: 

cuatecomatl = grosse tête (S). / entomologie, synonyme de âxaxayacatl, mouche aquatique = a large head (S). / entomology, a synonym of âxaxayacatl, which means aquatic fly."
Gran Diccionario Náhuatl, citing Wimmer (2004), who cites the Florentine Codex, Book 11, Folio 64. Translated here to English by Stephanie Wood.