"found in the click beetle (Elateridae) and darkling beetle (Tenebrionidae) families. Some elateriform larvae of click beetles are known as wireworms. Beetles in the Scarabaeoidea have short, thick larvae described as scarabaeiform, more commonly known as grubs. All beetle larvae go through several instars, which are the developmental stages between each moult. In many species, the larvae simply increase in size with each successive instar as more food is consumed. In some cases, however, more dramatic changes occur. Among certain beetle families or genera, particularly those that exhibit parasitic lifestyles, the first instar (the planidium) is highly mobile to search"
"and the whole pronotum is covered by fine puncture marks. The abdomen is brownish black, the wing covers reddish brown tinged with yellow, and the antennae and legs are pale reddish brown. The pronotum and wing covers are covered in dense, short greyish hairs. The larva is known as a wireworm and lives in the soil. It is yellow, slender, stiff and leathery, and grows to a length of about . The centre of the mandible has a small tooth for gnawing. The common click beetle is absent from the far north but is found in the rest of Europe,"
"shorter. Larvae develop in hole of various host plants, mainly ash (""Fraxinus excelsior""), beech (""Fagus sylvatica"") and elm (""Ulmus"" spp.). The life cycle lasts 4–6 years. Pupation occurs in spring. These beetles are predatory. They especially prey on hermit beetle (""Osmoderma eremita"") and rose chafer (""Cetonia aurata""). When male ""E. ferrugineus"" are attracted to a female, they release compounds that attract other males to the site. These compounds include geranyl, nerylacetone and 6-methyl-5-heptene-2-one. Attraction of males only occurs in the presence of females, ensuring increased mating opportunities. Elater ferrugineus Elater ferrugineus, the rusty click beetle, is a species of click"
"taking up to five years to complete. Adult common click beetles are more active in the afternoon and evening. They feed on the leaves of grasses and also on pollen, and are often seen on the flower-heads of umbelliferous plants. The larvae are eaten by birds such as rooks, crows and starlings, particularly just after ploughing, and are also preyed on by insects such as ground beetles. They are also subject to attack by parasitic insects and bacterial and fungal pathogens. The common click beetle is one of the most harmful common agricultural pest insects; many crops are affected by"
"beetles are so named because they look like spiders. Some species have long legs, antennae that can seem like an additional pair of legs, and a body shape that may appear superficially like that of a spider. Deathwatch beetles are named because of a clicking noise that two (and possibly more) species tend to make in the walls of houses and other buildings. This clicking noise is designed to communicate with potential mates, but has historically caused fear of impending death during times of plague and sickness. The larvae of a number of Ptinidae species tend to bore into wood,"
"for ""Megapenthes lugens"" reflects location, character and appearance"". The common name's creator, in a statement accompanying his entry, gave the following rationale for his choice of name: ""I've gone with this for the link to Windsor and the royals. The executioner is to represent that it kills (and eats) the larvae of others and also links to its black colour (the hood of an executioner is traditionally black)."" The names of the ten successful entrants are to be placed on permanent display in the museum. Megapenthes lugens Megapenthes lugens is a species of primarily European click beetle. The adult is"
"Megapenthes lugens Megapenthes lugens is a species of primarily European click beetle. The adult is black, narrow and long. The larvae feed on weevil larvae in the decaying trunks of beech and elm. In July 2010, the common name ""queen's executioner beetle"" was proposed following a competition. Adults of ""Megapenthes lugens"" grow to a length of , with a broad pronotum (the dorsal sclerites of the anterior segment of the thorax). The beetle's antennae extend marginally beyond the posterior of the pronotum when laid across the dorsal sclerites. The whole beetle is black in colour. The elytra gradually taper, and"
"Cysticercus Cysticercus (pl. cysticerci) is a scientific name given to the young tapeworms (larvae) belonging to the genus ""Taenia"". It is a small, sac-like vesicle resembling a bladder; hence, it is also known as bladder worm. It is filled with fluid, in which the main body of the larva, called scolex (which will eventually form the head of the tapeworm). It normally develops from the eggs, which are ingested by the intermediate hosts, such as pigs and cattle. The tissue infection is called cysticercosis. Inside such hosts, they settle in the muscles. When humans eat raw or undercooked pork or"
"has a dark spot on each side. The larvae reach a length of about . The elytra of newly emerged adults have a coating of a yellowish, waxy powder. As the beetle ages this powder wear off. The males apparently attract the females by a clicking sound produced by the elytra. This species usually mates in August. The larvae are miners of fallen timber, while adults are usually found walking around on the trunks of trees. Larva feed on decaying timber, especially of the Bombacaceae family (kapok or ceiba trees, mainly ""Ceiba pentandra "", ""Bombacopsis"" spp., ""Ochroma"" spp. and ""Pseudobombax"""
"into little balls called spermatophores by specialist organs. When dispersed, they become amoeboid and make their way through the body wall of an adult worm before fertilising eggs in the metacoel. The resulting zygotes make their way out through the nephridiopores and become planktonic larvae. They may be brooded as an egg mass in the lophophoral cavity for a period. The larva is known as an actinotroch and was thought for a long time to be an adult organism in its own right and given the generic name ""Actinotrocha sabatieri"". The actinotroch larva is transparent and has a ring of"
"also capable of suddenly catapulting itself out of danger by releasing the energy stored by a click mechanism, which consists of a stout spine on the prosternum and a matching groove in the mesosternum. Eggs are laid in soil. Larvae are predators of beetle larvae feeding in decaying wood, especially Cerambycidae. Their diet consists of nectar and plant juice. The larvae diet consists of grubs and wood-boring beetles. This species is present in Central and North America. It can be found in deciduous/mixed forests and woodlands. Alaus oculatus Alaus oculatus, commonly called the eastern eyed click beetle or eyed elater,"
"a length of about 1/8 of an inch. Their name originates from their distinguishable, sawtooth-like projections found on each side of the thorax. The body of the beetle is flat and slender in shape, and brown in color. The size and shape of the mandibles allow the beetles to easily break through well-sealed packaged foods. An adult female can lay between 45 and 250 eggs that usually hatch within three to 17 days. The larvae have a caterpillar-like appearance, with a yellowish coloration to the body and a brown head. The larval period can last as long as 10 weeks,"
"attacking most insects of suitable size, especially soft-bodied ones (aphids, caterpillars and other insect larvae, insect eggs, and at high population densities also each other). The larvae may also occasionally bite humans, possibly out of either aggression or hunger. Therefore, the larvae are colloquially known as ""aphid lions"" (also spelled ""aphidlions"") or ""aphid wolves"", similar to the related antlions. Their senses are weakly developed, except that they are very sensitive to touch. Walking around in a haphazard fashion, the larvae sway their heads from one side to the other, and when they strike a potential prey object, the larva grasps"
"and reproduction, which are separated by a pupal phase. Although the female is larviform, she also undergoes metamorphosis from a true larva to a sexually mature adult. Once ""T. contractus"" has reached sexual maturity, the female produces a sex pheromone which attracts the male. Once the female has mated she no longer produces this pheromone, which suggests that she mates only once. There is no indication that this is true for the male. The odd beetle was given its other common name, the tissue paper beetle, because it was believed to eat tissue paper. It does not actually consume tissue"
"The larvae are omnivorous, feeding on many different plants and other species larvae. The adults grow up to long and can mostly be encountered from May through July in broadleaved and coniferous host-trees. Denticollis linearis Denticollis linearis is a species of click beetle belonging to the family Elateridae subfamily Dendrometrinae. This beetle is present in most of Europe, in the East Palearctic ecozone, in the Nearctic ecozone and in the Near East. ""Denticollis linearis"" is quite similar to a Cantharidae species, but it can be distinguished from a soldier beetle by the two basal angles very protruding on pronotum and"
"that they are curved into a C-shape. These are called ""scarabaeiform"" because it is the typical form of the larvae of the ""Scarabaeidae""—the scarab beetles and their relatives. In contrast, larvae of the ""Curculionidae"" — the weevils — are also called ""apodous eruciform"", (literally meaning legless caterpillar-shaped; unlike scarab larvae, they do not have legs). This seems rather inconsistent, because commonly weevil larvae are almost as C-shaped as scarab larvae. Some larvae, such as those of most beetles in the family ""Chrysomelidae"", are described as eruciform, although they are short, have swollen abdomens, and have no true ""prolegs"" such as"
"spine-like appendages on the terminal end of the abdomen. Most beetle larvae have chewing mouthparts, an obvious head capsule, which is sclerotized, as well as three pairs of well developed thoracic legs that easily distinguish them from Diptera maggots. The larva's size depends on the species and is typically much less than 1/2 of an inch. Dermestid larvae are typically found on dry organic items that are hard for other organisms to digest, such as dried foodstuffs, skins, hides, wood and other natural fibers. In forensic studies, the larvae are found on human corpses during the dry and skeletal phases"
"abdomens to attract males; in the other, flying males emit signals to which the sometimes sedentary females respond. Click beetles emit an orange light from the abdomen when flying and a green light from the thorax when they are disturbed or moving about on the ground. The former is probably a sexual attractant but the latter may be defensive. Larvae of the click beetle ""Pyrophorus nyctophanus"" live in the surface layers of termite mounds in Brazil. They light up the mounds by emitting a bright greenish glow which attracts the flying insects on which they feed. In the marine environment,"
"wandering larvae of certain Cnidaria. Accordingly, ""planidium"" is the general term for such an adaptation, and it is not limited to any particular species or morphology. Planidia of different species differ variously from each other in form. The first instar larva in the beetle family Meloidae has three claws on each foot, and is therefore called a triungulin (plural ""triungula""). The term is derived from the Latin ""tri"" meaning ""three"" and ""ungula"" meaning a claw. Note that an obsolescent variant form from the same root as ""triungulin"" is ""triungulus"", plural ""triunguli"" and sometimes it still is encountered. For practical purposes"
"They have the forepart of the body reddish brown, strongly sclerotized, while the abdomen is white and fleshy. They are active predators feeding on larvae and nymphs of many different other insects living in rotten wood (mainly larvae of ""Stictoleptura rubra""). This species can be found in the Mediterranean countries, in Central Europe, the Caucasus, Crimea, in the Near East and in North Africa. Lacon punctatus Lacon punctatus is a species of click beetle belonging to the family Elateridae subfamily Agrypninae. ""Lacon punctatuss"" can reach a length of . Body is black and flat, covered with hair and with small"
"with golden highlights in some subfamilies. They have short, but sharp mandibles. Immediately upon biting, they deliver digestive enzymes. The larvae are commonly known as water tigers. The family includes more than 4,000 described species in numerous genera. When still in larval form, the beetles vary in size from about 1 to 5 cm (0.5 to 2.0 in). The larval bodies are shaped like crescents, with the tail long and covered with thin hairs. Six legs protrude from along the thorax, which also sports the same thin hairs. The head is flat and square, with a pair of long, large"
"can only be seen when in flight. Bioluminescent click beetles are found throughout tropical and subtropical America. Species from Texas, Florida, and Cuba are now in different genera in the tribe Pyrophorini, such as ""Deilelater"". Adult ""Pyrophorus"" beetles feed on pollen and sometimes small insects, such as aphids or scale insects. Their larvae feed on various plant materials and invertebrates, including the larvae of other beetles. Eggs are luminous and are deposited either on or in the soil. Larvae, like eggs, are luminous. They grow slowly and pupate after an uncertain period of time, but perhaps several years after hatching."
"Lara (beetle) Lara is a genus of Nearctic beetles in the family Elmidae. Name ""Lara"" was also applied to a genus of orthopterans by Otte and Alexander in 1983 (now ""Musgravia"" Otte, 1994), and to a genus of harvestmen by González-Sponga in 1987 (now ""Venezuelana"" Özdikmen, 2008). There are two species, the North American wood-eating beetle ""Lara avara"" and ""Lara gehringii"" . In Oregon, the life cycle of ""Lara avara"" is 4 to 6 years long, or even more. Adults can be found from May to August and live for about three weeks. They deposit the eggs on submerged wood."
"longer and narrower. Each antenna is tipped with a club. During its adult lifespan of 30 to 60 days, the female beetle lays up to 100 white eggs. The eggs are visible but less than one millimeter long. The larvae emerge in one to three weeks. The larva is oval or ""carrot-shaped"" and about 5 millimeters long at its final stage. It varies in color according to diet and it is coated in long, brown hairs. The larva of this species can be distinguished from that of its relative, the common carpet beetle (""Anthrenus scrophulariae""), by the presence of a"
"silken net connecting the two sides of the narrow pupation chamber. The beetle emerged after about six weeks. Though the larvae of this beetle had been known for a long time, they were described by Ferris in 1927 as an ""entomological enigma"". This was because it had not previously been known into what adult form they would develop. Adult beetles are seldom seen but they are attracted by light and the males are on the wing between May and August. The larvae are found under loose bark on trees, in leaf litter and in cracks in rocks. There seems to"
"first abdominal segment. Their bioluminescence is similar to that of another group of beetles, the fireflies, although click beetles do not flash, but remain constantly glowing (though they can control the intensity; for example, they become brighter when touched by a potential predator). Also the larvae and the pupae have light organs and the eggs are luminous too. Adults feed on pollen, fermenting fruit and sometimes small insects, while the larvae live in the soil and feed on various plant materials and invertebrates, as well on the larvae of other beetles. This species can be found in Belize, Saint Vincent"
"for human consumption by specialized European insect farms, mostly in the Netherlands and Belgium. The larvae are either sold freeze-dried for consumption, or processed into food such as burger patties, pasta, or snack bars. As food as well as pet food, the larvae are commonly marketed under the term buffalo worms, more rarely ""lesser mealworm"". Alphitobius diaperinus Alphitobius diaperinus is a species of beetle in the family Tenebrionidae, the darkling beetles. It is known commonly as the lesser mealworm and the litter beetle. It has a cosmopolitan distribution, occurring nearly worldwide. It is known widely as a pest insect of"
"undergo complete metamorphosis. The larvae are commonly called caterpillars, and are completely different from their adult moth or butterfly forms, having a cylindrical body with a well-developed head, mandible mouth parts, three pairs of thoracic legs and from none up to five pairs of prolegs. As they grow, these larvae change in appearance, going through a series of stages called instars. Once fully matured, the larva develops into a pupa. A few butterflies and many moth species spin a silk case or cocoon prior to pupating, while others do not, instead going underground. A butterfly pupa, called a chrysalis, has"
"the 4th. The first elements can be inserted into a groove on the inner edge of the prothorax. The basic color is metallic black, with bronze luster. The upper side of the body is covered by gray hairs. Adults can mostly be encountered from April through July. The larvae mainly feed on roots of Poaceae species. The main host-plants are Rosaceae, Poaceae and Apiaceae species, as ""Crataegus"" and ""Heracleum"" species, etc. Cidnopus pilosus Cidnopus pilosus is a species of click beetle belonging to the family Elateridae subfamily Dendrometrinae. This species is present in most of Europe, in the East Palearctic"
"species, with well-developed and sclerotized heads, distinguishable thoracic and abdominal segments (usually the tenth, though sometimes the eighth or ninth). Beetle larvae can be differentiated from other insect larvae by their hardened, often darkened heads, the presence of chewing mouthparts, and spiracles along the sides of their bodies. Like adult beetles, the larvae are varied in appearance, particularly between beetle families. Beetles with somewhat flattened, highly mobile larvae include the ground beetles and rove beetles; their larvae are described as campodeiform. Some beetle larvae resemble hardened worms with dark head capsules and minute legs. These are elateriform larvae, and are"
"times the weight of the beetle larva. The larvae are nocturnal, and are most active during moist conditions, when their prey are most active. The larvae may moult four to five times in their lifetimes. They spend their winters under logs, stones, wood holes, or leaf litter, their bodies drawn in like concertinas, hibernating as their food source becomes increasingly hard to find. They wake up in spring, and the cycle is repeated for one more year, or possibly two. They become adults from May to July or sometimes later, surviving on food reserves built up during time as a"
"of spiny projections. A larva generally passes through five instars in a period of four to five weeks, after which it will anchor itself to a suitable surface, usually in a protected spot on the plant, where it changes its skin once more, forming a typical coccinellid pupa, from which it emerges as a beetle imago after several days. Many species have just one or perhaps two generations in a year. Commonly, such species have the remarkable habit, which also occurs in some other coccinellid subfamilies, of migrating tens of kilometres to the highest point on a nearby ridge or"
"on the Egg, larval, and adult stages of other insects. Certain species are also used to control livestock pests that infest dung or to control house flies. Histeridae are most active at night and they will play dead if they feel threatened. Histeridae was named by Leonard Gyllenhaal. Histeridae has two common names, the “Clown” beetle and the “Hister” beetle. There have been several theories explaining the origin of these common names. One theory for the “Hister” nickname comes from the work of Juvenal, a Roman poet. Juvenal used the word “hister” to mean a dirty, lowly being. Another theory"