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Heteronychus arator (hetero+onychus = 'variable claw', arator = 'ploughman') is a species of beetle in the subfamily Dynastinae (the rhinoceros beetles). It is commonly called African black beetle or black lawn beetle. [1] It is native to Africa and it is an introduced species in Australia, Norfolk Island and the North Island of New Zealand. [2]
Eleodes (commonly known as pinacate beetles or desert stink beetles) is a genus of darkling beetles, in the family Tenebrionidae. [1] They are endemic to western North America ranging from southern Canada to central Mexico with many species found along the Mexico-United States border. [2] Some species have been introduced to Colombia.
Pterostichus madidus, commonly known as the black clock beetle, is a species of ground beetle native to Europe. [1] [2] The black clock beetle typically grows between 14–20mm in length, and is black in colouration, with legs that are usually red, reddish brown, or black. It can be found most abundantly in summer, and breeds during the autumn.
It is a long-bodied, black beetle. At about 20–32 mm (13 ⁄ 16 – 1 + 1 ⁄ 4 in), [12] [13] it is one of the larger British beetles. Its wing covers are short, covering only its thorax, exposing the abdominal segments. The abdominal musculature is powerful and the abdominal segments are covered with sclerotized plates.
Alaus oculatus can reach a length of about 25–45 millimetres (1.0–1.8 in). [2] They have an elongated body, black in color throughout. The pronotum exhibits a large oval patch of darker scales, framed in white, on each side - the common name of the beetle derives from this feature.
Wood-boring insects can degrade the wood aesthetically by boring holes, and also indirectly as vectors for fungi and nematodes which can cause structural damage. [ 5 ] Allison et al. [ 11 ] extrapolated information from one mill in southern British Columbia to suggest that wood-boring insects could cause an annual loss of US$43.6 million per ...
The beetles of N. vespilloides have highly variable body size that ranges from 12–20 mm. [1] They have two conspicuous orange-yellow bands on the elytra. The color of their antennae are completely black. [2] Their orange and black markings serve as a warning sign to avian predators that defends them from attack.
Many other beetles, including ladybirds, blister beetles, and lycid beetles secrete distasteful or toxic substances to make them unpalatable or poisonous, and are often aposematic, where bright or contrasting coloration warn off predators; many beetles and other insects mimic these chemically protected species.