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Pliny the Elder discusses beetles in his Natural History, [158] describing the stag beetle: "Some insects, for the preservation of their wings, are covered with an erust —the beetle, for instance, the wing of which is peculiarly fine and frail. To these insects a sting has been denied by Nature; but in one large kind we find horns of a ...
Entomologists use the names ladybird beetles or lady beetles to avoid confusion with true bugs. The more than 6,000 described species have a global distribution and are found in a variety of habitats. They are oval beetles with a domed back and flat underside.
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.
The word cochineal is derived from the French cochenille, derived from Spanish cochinilla, in turn derived from Latin coccinus, from Greek κόκκινος kokkinos, "scarlet" from κόκκος kokkos (Latin equivalent coccum) referring in this case either to the oak berry (actually the insects of the genus Kermes) or to a red dye made from the crushed bodies thereof.
The yellow mealworm beetle can be differentiated from other beetles, due to the linear grooves that are evenly divided and run along the abdomen. The beetle has only four tarsal segments on its hind legs. Most ground beetles, which are similar in size to Tenebrio molitor, have five tarsal segments. [4]
Insect cooking oil, insect butter and fatty alcohols can be made from such insects as the superworm (Zophobas morio). [199] Insect species including the black soldier fly or the housefly in their maggot forms, and beetle larvae such as mealworms, can be processed and used as feed for farmed animals including chicken, fish and pigs. [200]
“Spanish fly” refers to all sorts of tonics, potions and other “love supplements” made from one type of insect: blister beetles. There have been a variety of formulations of Spanish fly ...
Others, such as the Japanese beetle, are plant-eaters, wreaking havoc on various crops and vegetation. Some of the well-known beetles from the Scarabaeidae are Japanese beetles, dung beetles, June beetles, rose chafers (Australian, European, and North American), rhinoceros beetles, Hercules beetles and Goliath beetles.