A NATURALIST'S WANDERINGS
a butterfly. I approached with gentle steps but ready net to see if possible how the present species was engaged. It permitted me to get quite close and even to seize it between my fingers ; to my surprise, however, part of the body remained behind, and in adhering as I thought to the excreta, it recalled to my mind an observation of Mr. Wallacea s on certain Coleoptera falling a prey to their inexperience by boring in the bark of trees in whose exuding gum they became unwittingly entombed. I looked closely at, and finally touched with the tip of my
A EIBD's EXCRETA-3JIMICKING SPIDER.
finger, the excreta to find if it were glutinous. To my delighted astonishment I found that my eyes had been most perfectly deceived, and that the excreta was a most artfully coloured spider lying on its back, with its feet crossed over and closely adpressed to its body.
I he appearance oA the excreta rather recently left on a leaf by a bird or a lizard is well known. Its central and denser portion is of a pure white chalk-like colour, streaked here and there with black, and surrounded by a thin border of the dried-up more fluid part, which, as the leaf is rarely horizontal, often runs for a little way towards the margin. The spider, which belongs to a family, the ThomisidA , possessing rather tubercu-