The term vespertine is often used to evoke the qualities of evening or twilight, serving both literal and metaphorical purposes. In poetic passages, it is employed to describe the delicate, transforming light of late day—creating images of a "bright vespertine ray" or the slow gathering of twilight mist ([1],[2]) that imbues the setting with an air of sublime beauty. At times, the word is applied in more technical contexts, referring to specific periods or groups in natural history, as seen in discussions of geological formations in Pennsylvania and Illinois ([3],[4]). Additionally, its use extends to describing nocturnal performances or ritualistic events in nature, such as the subtle displays of woodland creatures or even evening activities in an urban setting ([5],[6]). This blend of scientific precision and evocative imagery underscores the term's unique versatility in literature ([7],[8],[9]).