Les lepidoptères de la Belgique, Bruxelles, Librairie C. Muquardt, Merzbach et Falk succ, 1874-84, Belgium, Lepidoptera, The illustration features a flowering plant recognized as 'Pieride du colza,' commonly associated with the yellow flowering variety of the brassica family. Delicate yellow flowers cluster atop long stems, surrounded by broad, serrated leaves. Inhabiting the scene are two white butterflies gracefully positioned, one resting on the foliage and the other in flight, alongside a green caterpillar clinging to a leaf. The composition elegantly captures the harmonious relationship between the plant and its pollinators, showcasing the intricate details of both flora and fauna. At the bottom, the title reinforces the connection to the colza plant, emphasizing its ecological significance.