Nor is this all the witchery of this bittersweet thorn. It is well worth our further careful study. Seen collectively, the thorny rose branch is instantly suggested, but occasionally, when we observe a single isolated specimen, especially in the month of July, he will certainly masquerade in an entirely new guise. Look! quick. Turn your magnifier hither on this green shoot. No thorn this. Is it not rather a whole covey of quail, mother and young creeping along the vine? Who would ever have thought of a thorn! Turning now to our original group, how perfectly do they take the hint, for are they not a family of tiny birds with long necks and swelling breasts and drooping tails, verily like an autumn brood of "Bob Whites"? [Illustration] But the little harlequin is as wary a bird as he was a thorn! No sooner do we touch his head with our finger than with an audible "click" he is off on a most agile jump, which he extends with buzzing wings, and is even now perhaps aping a thorn among a little group of his fellows somewhere among the larger bittersweet branches. It is only as we capture one of the little protean acrobats between our finger-tips and examine him with a magnifier that we can really make "head or tail" of his queer anatomy. Even thus enlarged it is difficult to get entirely rid of the idea of a bird. I have shown a group of the insects in various attitudes, the position of the eyes alone serving as a starting-point for our comprehension of his singular make-up. The tall neck-like or thorn-like prominence is then seen to be a mere elongated helmet, which is prolonged into a steep angle behind, so as to cover the back of the creature like a peaked roof, a feature from which the scientific name of this particular group of insects is derived, _Membracis_, meaning sharp-edged, the sides of the slope being covered by the close-fitting wings, which, though apparently compact with the body of the insect, are nevertheless always available for instant and most agile flight. We now discover two pairs of stout legs just beneath the edge of the wings, a third more slender pair being concealed behind, ready for immediate use in association with these buzzing wings when the whim of the midget prompts it to leap. [Illustration] This insect is the tree-hopper, and is but one of many equally curious and mimetic species to be found among the smaller branches of various trees and shrubs.