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The legs are long and thin and the front legs are sometimes smaller and more slender than the middle and rear legs. Typically, they are provided with bristles at the apex of the tibiae, without empodia and, sometimes, also without pulvilli. The wings are transparent, often hyaline or evenly colored or with bands.
Adult insects range from roughly 12 to 36 mm (0.47 to 1.42 in), depending on the species. [5] They most commonly have an elongated head with a distinct narrowed 'neck', long legs, and prominent, segmented, tubular mouthparts, most commonly called the proboscis, but some authors use the term "rostrum".
The Ancyronyx variegatus species group are larger in size (usually larger than 1.4 mm (0.055 in)), with very long legs, stout coxites on the ovipositor, and a transverse prosternal process. Their larvae are also larger, depressed in cross-section, and possess large side-pointing projections on the sides of the abdomen.
The adult is 12–14 mm (1/2-5/8") in length, [4] [page needed] and has fairly long legs. The mandibles give these attractive insects a ferocious appearance. While tiger beetles are voracious predators of small arthropods, they do not bite humans unless handled.
Stenocara gracilipes is a species of beetle that is native to the Namib Desert in southern Africa. This is one of the most arid areas of the world, receiving only 1.4 centimetres (0.55 in) of rain per year. The beetle is able to survive by collecting water on its bumpy back surface from early morning fogs.
The harlequin beetle (Acrocinus longimanus) is a large and distinctly colored species of longhorn beetle from the Neotropics and the only member of the genus Acrocinus. [1]It is given its English name because of the elaborate pattern of black, orange-red and greenish-yellow markings in both sexes; [1] [2] despite this the beetle is quite well-camouflaged when perched on a lichen or fungus ...
Red-headed ash borers typically reach 12–16 mm (0.47–0.63 in) adult length, have long antennae which are thickened towards the tips, and have the rear and middle pairs of legs elongated. The reddish-brown coloration with four bands of contrasting yellow stripes and the general body shape mimics wasps , which is a common survival tactic ...
The beetles' glands store enough hydroquinone and hydrogen peroxide to allow the beetle to release its chemical spray roughly 20 times. In some cases this is enough to kill a predator. [6] The main component of the beetle spray is 1,4-benzoquinone, an irritant to the eyes and the respiratory system of vertebrates.