xalmoyotl (FCbk11f109r)
This iconographic example, almost a compound glyph, consists of two elements, a profile view of a group of coastal mosquitos or biting sand flies (xalmoyotl) in the air, facing left, and surrounded by sand.The term selected for this example comes from the text near the image in the Digital Florentine Codex. There is no gloss, per se. This sand (xalli) in the air has no logic other than to explain that these insects are found on sandy beaches, which almost makes this a compound glyph or perhaps a late expression of that earlier writing system. The contextualizing image shows that this pairing of elements has been placed in a landscape setting, which shows European artistic influence.
Stephanie Wood
This is the first record for xalmoyotl to enter this digital collection (as of November 2025), but there are a number of records of the simple moyotl (which can look like a mosquito or a fly, although the fly is called a zayolin). Some have a straight proboscis (for penetrating the skin) and some have a curled one. Moyotl is a personal name. See a few examples below.
Stephanie Wood
xalmoiotl
xalmoyotl
Stephanie Wood
1577
Jeff Haskett-Wood
mosquitos, insectos, volando

xalmoyo(tl), a coastal mosquito, https://nahuatl.wired-humanities.org/content/xalmoyotl
el mosquito o la mosca de la arena, de la playa
Stephanie Wood
Available at Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter and Alicia Maria Houtrouw, "Book 11: Earthly Things", fol. 109r, Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/109r/images/0 Accessed 16 October 2025.
Images of the digitized Florentine Codex are made available under the following Creative Commons license: CC BY-NC-ND (Attribution-NonCommercial-NoDerivs 4.0 International). For print-publication quality photos, please contact the Biblioteca Medicea Laurenziana ([email protected]). The Library of Congress has also published this manuscript, using the images of the World Digital Library copy. “The Library of Congress is unaware of any copyright or other restrictions in the World Digital Library Collection. Absent any such restrictions, these materials are free to use and reuse.”

