國立自然科學博物館

常常聽解說員說鱗翅目幼蟲的腹部有吸盤，其實那不是吸盤，而是用來攀附物體的腹足。腹足末端有許多小小的鈎子，稱為原足鈎；不同的科別的幼蟲，原足鈎排列的方式不一樣，有的排列成輪狀，有的則排成弧形。因為原足鈎非常細小，肉眼很難觀察，透過鏡頭放大之後，就可以看得比較清楚。天蠶蛾的幼蟲因為體型較大，更容易看清楚腹足的結構。

I often hear guides describe the larvae of the order Lepidoptera as having suction discs on their abdomen. These are not suction discs, but prolegs that the larvae use to grip surfaces. On the tips of their prolegs are tiny gripping hooks, called crochets. The arrangement of these crochets varies among families. Sometimes, they are arranged in a wheel shape and sometimes in an arch shape. Because they are very tiny, they are difficult to observe with the naked eye, but can be clearly seen when magnified through a lens. Due to their larger size, the proleg structures are easier to see on Saturniidae larvae.

設備：NIKON 5100機身、105微距鏡頭
設定：光圈25、閃光燈出力1/4、包覆式柔光罩、快門1/200秒