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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.
They are typically small beetles, with some very small species only half a millimeter in length. Scydmaenids typically live in leaf litter and rotting logs in forests, preferring moist habitats. A number of types are known to feed on oribatid mites, using "hole scraping" and "cutting" techniques to get through the mite's hard shells.
When viewed from above, most beetles appear to have three clear sections, but this is deceptive: on the beetle's upper surface, the middle section is a hard plate called the pronotum, which is only the front part of the thorax; the back part of the thorax is concealed by the beetle's wings. This further segmentation is usually best seen on the ...
The pronotal is a protective hard shell that encompasses the beetle's thorax region; the elytral are the beetle's wings that rest on its side. When threatened, these beetles will begin to release small excretions through both of these glands. These secretions have been found to include the toxic cardenolide molecules.
While all beetles have flight muscles that work antagonistically – when one shortens, the other stretches – only a small percentage are functional. In addition, the beetles with flight potential have a short flight period. The arrested development of the flight muscles, causing the inability to fly, may be an evolutionary choice.
The family includes spider beetles and deathwatch beetle, [2] as well as the cigarette, drugstore and furniture beetles. The Ptinidae family species are hard to identify because they are so small, and they have a compact body structure. They also have similar morphologies within the genera and species of the family. [3]
A small gnat sits on a California Goldfield daisy, which is a common wildflower, along Shell Creek Road last year. Gnats Some bite for blood and pass on illnesses.
Latridiidae (sometimes spelled "Lathridiidae") is a family of tiny, little-known beetles commonly called minute brown scavenger beetles or fungus beetles. [1] [2] The number of described species currently stands at around 1050 in 29 genera but the number of species is undoubtedly much higher than this and increases each time a new estimate is made.