Plant Hopper

Is that a stinger? Ovipositor? Nope. This is a Planthopper nymph — infraorder Fulgoromorpha, and the tail is extruded wax, secreted as filaments from glands on the terminal abdominal segments. Fulgoromorph nymphs push it out continuously; different families produce different architectures, from compact black-and-white brushes like this one to absurd peacock fans several times body length. It works as a decoy (a bird grabs the tail, the insect leaves it behind), as water-repellent shielding, and possibly as a shock absorber when they jump.