Now that I have access to a university library -- and interlibrary loans -- I can look for wemics in new places. Here's one: Images in the Margins, by Margot McIlwain Nishimura, an art historian and dean of libraries at the Rhode Island School of Design. Her book on medieval marginalia included an image of a sagittary and a knight battling a dragon. Here's the sagittary (click to embiggen):
Note that he is clearly a liontaur and not a centaur. Those are paws, not hooves. And the vestigial mane around the fellow's waist is very typical of medieval feline sagittaries. Here he is in the wider context:
Nishimura says this about the image:
A Hybrid Creature and a Knight Battling Dragons
[The Trinity]
Lieven van Lathem
Prayer Book of Charles the Bold
Ghent and Antwerp, 1469
JPGM, Ms. 37, fol. 14
Here's the cover of the book:
For future exploration, Nishimura references a few other works that may be worth checking out. (Listing them here for my own reference for future screeds.)
Michael Camille, Image on the Edge: The Margins o Medieval Art (Cambridge, MA, 1992)
Stella Panayotova, The Macclesfield Psalter (New York, 2008).
Lilian M. C. Randall, Images in the Margins of Gothic Manuscripts (Berkeley, 1966).
Lucy Freeman Sandler, "The Study of Marginal Imagery: Past Present, and Future," Studies in Iconography 18 (1997), pp. 1-49.
5 Nov 2024 Update: I also recently found a source of digitized medieval manuscripts at the British Library. In one of them -- Book of Hours, use of Sarum (The 'Neville of Hornby Hours'), I found another sagittary, in typical archer pose. The manuscript is labelled "Egerton MS 2781" -- and you can find this one on page 7r (the "r" is for recto, the right hand page).
As usual, click to embiggen. As in the sagittary above, this archer also has paws (not hooves) and a mane-like fringe around his waist. And what a cheerful guy! I love that smile.