At the entrance is an illustration by Lin I-hsiang titled People, Butterflies and Food, showing the Taiwan sassafras (Sassafras randaiense) eaten by the caterpillar of the broad-tailed swallowtail (Agehana maraho) and the wild orange tree (Toddalia asiatica) favored by the larvae of the spangle (Papilio protenor).
展場入口由插畫家林怡湘繪製的「人、蝴蝶與食草的關係」，可清楚看到寬尾鳳蝶幼蟲吃的是台灣●樹、黑鳳蝶幼蟲吃的是聽起來像武功招式的「飛龍掌血」（芸香科植物）。