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The common term, earwig, is derived from the Old English Δ“are, which means ' ear ', and wicga, which means ' insect ', or literally, ' beetle '. [2] Entomologists suggest that the origin of the name is a reference to the appearance of the hindwings, which are unique and distinctive among insects, and resemble a human ear when unfolded.
C. bicolorata is a small lead beetle with a brown head, brown and yellow graduated pronotum and yellow elytra marked with characteristic elongated brown stripes. The pattern on the elytra is greatly variable - in a study of 478 beetles, 29 variations on this pattern were identified.
A relatively large lucanid beetle of the genus Lucanus, the male has long, curved upper jaws, resembling a sickle. The larvae are found in the trunks of old trees, feeding on the inner wood. It is dark reddish brown with smooth, shiny elytra (“wing cases”); the femora are orange brown. Males have much larger jaws than females.
The black or dull brown darkling beetles’ wing covers are fused so they are unable to fly and must spend their lives on the ground. Entomologists may identify them through their antennas, which ...
Chalcophora angulicollis, known generally as the western sculptured pine borer or sculptured pine borer, is a species of metallic wood-boring beetle in the family Buprestidae. They are found in dry parts of the world such as the western parts of North America. They have a dark brown textured shell with a shimmery gradient. [1] [2] [3]
Adults are robust, mid-sized beetles that typically have elytra with some sort of corrugation on the upper side. They are typically black, dark brown or grey, and often have a satiny sheen. The body is shaped like a medication capsule or like a bullet ; the legs can be short and stout or long and spindly.
Pelidnota punctata, the grapevine beetle, spotted June beetle or spotted pelidnota, is a species of beetle in the family Scarabaeidae (Scarab beetles), subfamily Rutelinae. Grapevine beetles are common in the north and central United States and eastern Canada, but do relatively little damage to their host plants.
These beetles are shiny dark red, dark brown, or black in coloration. The eyes are located on each side of the head. When disturbed these beetles make a hissing noise, produced by rubbing the tip of the abdomen against the edge the elytra. [8] [9] Males with transverse, scantily punctured head; clypeus elongate, scantily and minutely punctured.