[3] The name agyrtes has Greek origin, translating to "mimic, cheat", and bears reference to the superficial resemblance of this species to the related Ialtris parishi.

A pale whitish supralabial line is present, extending from the tip of the snout to the base of the head and with darker brown superior margins.

The altitudinal distribution recorded is 20 to 541 m.[3][1][5] Specimens have been found under stones, and organic debris including the decaying rosettes of dead Agave which are particularly abundant in their habitat.

Illegal agriculture, cattle grazing and wood harvesting also takes place in both national parks, and protection measures are poorly enforced.

[1] An invasive species, the small Indian mongoose (Urva auropunctata) has been highly suspected to represent a threat for I. agyrtes, given its diurnal and terrestrial habits.