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Phyllotreta undulata, known generally as the small striped flea beetle or turnip flea beetle, is a species of flea beetle in the family Chrysomelidae. [1] [2] [3] ...
The striped flea beetle (Phyllotreta striolata) is a small flea beetle, shiny black with a greenish tinge, 1.5 to 2.5 mm long, having a wavy amber line running the length of each elytron (wing cover). It is a pest of cabbage and other brassicas. The hind legs are thickened, enabling the beetle to jump like a flea when disturbed.
Whereas the length of the adult striped cucumber beetle is around 5.25 mm, the length of the western corn rootworm is around 6.3 mm. [3] Furthermore, the black stripes of western corn rootworm adults do not fully span across the entire elytra, but begin to fade off before it reaches the tip. [4]
In North America, the spotted and striped cucumber beetles are the most commonly encountered varieties. The spotted cucumber beetle has three subspecies, each with a different common name: Diabrotica undecimpunctata howardi – spotted cucumber beetle or southern corn rootworm [4] Diabrotica undecimpunctata tenella – western cucumber beetle [5]
The cantharidin content of one striped blister beetle has been reported to be about 0.31 to 1.45 milligrams in one small sample, [6] and about 4 [7] or 5 milligrams in general. [4] The toxic dose of cantharidin in horses is about one milligram per kilogram body weight, and the ingestion of 30 to 50 beetles can be fatal. [ 4 ]
This varies from a green striped, brown beetle to a full velvet green body. [2] The insects' margins are usually light brown or yellow with a metallic green or brown underside. The insect is typically ¾-1.5 inches in length. Compared to the legs of a common June beetle, the legs are shorter, and the body is stouter. [3]
Acalymma trivittatum, the western striped cucumber beetle, is a species of leaf beetle in the family Chrysomelidae. [ 1 ] [ 2 ] [ 3 ] It is found in Central America and North America . [ 1 ] [ 4 ] It is considered a key pest on crops in the Cucurbitaceae family.
Oryzaephilus mercator, the merchant grain beetle, is a small, flattened beetle about 2.5mm in length. [1] It is a common, worldwide pest of grain and grain products as well as fruit, chocolate, drugs, and tobacco. [1] The biology of O. mercator is nearly identical with Oryzaephilus surinamensis (the sawtooth grain beetle). [1]