Zophobas atratus | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Coleoptera |
Family: | Tenebrionidae |
Genus: | Zophobas |
Species: | Z. atratus |
Binomial name | |
Zophobas atratus (Fabricius, 1775) | |
Synonyms | |
Zophobas atratus is a species of darkling beetle, whose larvae are known by the common name superworm, kingworm, barley worm, morio worm or simply Zophobas. Superworms are common in the reptile pet industry as food, along with giant mealworms (Tenebrio molitor larvae treated with juvenile hormone [ citation needed ]).
The larvae resemble very large mealworms, about 50 to 60 mm (1.7–2.25 in) long when full size, but unlike mealworms, the ends of their bodies are very dark, almost resembling a black color. Once they reach sufficient maturity, the larvae pupate, emerging with a white to light brown colour; eventually darkening to black. The larvae fail to pupate if kept in a high density with many other larvae and plentiful food. Keeping Z. atratus this way is commonly used to hinder pupation. To mature the larvae, they must be isolated for about 7–10 days. They will then, upon maturation, emerge from their pupal stage as darkling beetles. [6]
Zophobas atratus is generally accepted by captive lizards, turtles, frogs, salamanders, birds, koi and other insectivorous animals. Their nutritional values are similar to those of mealworms, so it is possible that supplementation with calcium is necessary if they are used as a staple food item. In some cases they are preferred over mealworms due to their softer exoskeleton, [7] making them more digestible to some reptiles. The larvae are odor-free, but the adult beetles possess a pungent chemical defense that may be released when provoked. Zophobas atratus can easily be contained, making them ideal for breeding to feed a collection of captive insectivores. The nutritional profile of the larvae is "46.80% proteins, 43.64% lipids, 8.17% ashes and 1.39% carbohydrates." [8]
As with the popular mealworm, Z. atratus larvae (commonly known as superworms, and under the name Zophobas morio) are widely used in pet care, more specifically as feed.
Superworms are relatively high in protein and fat, which make them attractive pet feed for captive reptiles, amphibians, fish, and birds, and other types of insectivores like ants. Their ability to stay alive without eating for 1–2 weeks makes the keeping process highly feasible for bulk commercial availability around the world. However, pet owners are advised to keep them in warm temperatures as, unlike the mealworm, superworms do not enter the process of hibernation. They are also known to bite and agitate when threatened by handling, although the bite is not very painful.
Larvae of Zophobas atratus, Tenebrio molitor and Tenebrio obscurus all have been found to consume expanded polystyrene foam. [9] Zophobas atratus breaks down polystyrene through a two-stage process: first by mechanically shredding the plastic into smaller pieces through chewing, which exposes pieces to oxygen atoms, and then by using bacterial gut enzymes to depolymerize the pieces. [10] [11] Zophobas atratus larvae fed with a polystyrene diet were more active and managed to gain a slight amount of weight compared to the same type of larvae on a starvation diet. [12] [13]
This beetle occurs naturally in tropical regions of Central and South America, [14] but has spread across the world for use as food for reptiles and other insectivorous pets.[ citation needed ]
The name Zophobas morio is still very widely in use in the scientific literature, although it has been synonymised with Z. atratus. [1] Since Z. morio was published later (in the year 1777) than Z. atratus (published in 1775), the former name is a junior subjective synonym of the latter, and Z. atratus is the valid name of this species.
Polystyrene (PS) is a synthetic polymer made from monomers of the aromatic hydrocarbon styrene. Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and brittle. It is an inexpensive resin per unit weight. It is a poor barrier to air and water vapor and has a relatively low melting point. Polystyrene is one of the most widely used plastics, with the scale of its production being several million tonnes per year. Polystyrene is naturally transparent, but can be colored with colorants. Uses include protective packaging, containers, lids, bottles, trays, tumblers, disposable cutlery, in the making of models, and as an alternative material for phonograph records.
Mealworms are the larval form of the yellow mealworm beetle, Tenebrio molitor, a species of darkling beetle.
Darkling beetle is the common name for members of the beetle family Tenebrionidae, comprising over 20,000 species in a cosmopolitan distribution.
Tenebrio obscurus, or the dark mealworm beetle, is a species of darkling beetle whose larvae are known as mini mealworms. These insects should not be confused with younger mealworms or with the confused flour beetle.
Insect diuretic hormones are hormones that regulate water balance through diuretic action.
Live food is living animals used as food for other carnivorous or omnivorous animals kept in captivity; in other words, small preys fed alive to larger predators kept either in a zoo or as a pet.
Zophobas is a genus of beetles in the family Tenebrionidae, the darkling beetles. They occur in the Americas, from the Neotropics into southernmost United States. In Cuba beetles of this genus are known as blind click-beetles.
Giant mealworm can refer to:
Flour beetles are members of several darkling beetle genera including Tribolium and Tenebrio. They are pests of cereal silos and are widely used as laboratory animals, as they are easy to keep. The flour beetles consume wheat and other grains, are adapted to survive in very dry environments, and can withstand even higher amounts of radiation than cockroaches.
Tenebrioninae is the largest subfamily of the darkling beetles (Tenebrionidae), containing flour beetles, among others. Tenebrioninae contains more than 20 tribes.
Tenebroides mauritanicus, commonly known as the cadelle, is a species of beetle in the family Trogossitidae. It is a common cosmopolitan pest in storehouses and granaries.
Insect farming is the practice of raising and breeding insects as livestock, also referred to as minilivestock or micro stock. Insects may be farmed for the commodities they produce, or for them themselves; to be used as food, as feed, as a dye, and otherwise.
Scarabiasis, or "beetle-disease", is a condition where beetles temporarily infest the digestive tract of other animals. It can also affect humans, and despite being a rare phenomenon, it is the second most important insectal disease in humans after myiasis, which is caused by the larva of flies. The term is commonly used as a synonym of canthariasis, but the latter refers to the infection of animal tissues by beetle larva, whereas the Scarabiasis refers to the infection by adult beetles. Moreover, Scarabiasis refers to the passing of live beetles in animal faeces. Reported symptoms of scarabiasis include loss of appetite, diarrhea, abdominal cramps, vomiting, nausea, and insects in stool. Scarabiasis has been known to infect the gastrointestinal tract, urogenital system, nasal sinuses, ears, and faces of mammals and other animals.
Insects as food or edible insects are insect species used for human consumption. Over 2 billion people are estimated to eat insects on a daily basis. Globally, more than 2,000 insect species are considered edible, though far fewer are discussed for industrialized mass production and regionally authorized for use in food. Many insects are highly nutritious, though nutritional content depends on species and other factors such as diet and age. Insects offer a wide variety of flavors and are commonly consumed whole or pulverized for use in dishes and processed food products such as burger patties, pasta, or snacks. Like other foods, there can be risks associated with consuming insects, such as allergic reactions. As commercial interest in insects as food grows, countries are introducing new regulatory frameworks to oversee their production, processing, marketing, and consumption.
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 stored food grain products such as flour, and of poultry-rearing facilities and it is a vector of many kinds of animal pathogens. In larval form, it is an approved novel food in the European Union, and also used as animal feed.
Asbolus verrucosus(LeConte, 1852), also known as the desert ironclad beetle or blue death feigning beetle, is a species of darkling beetle native to southwestern United States and northwestern Mexico, where it inhabits dry, sandy habitats such as the Sonoran and Mojave Deserts. It is highly adapted to hot environments and is omnivorous, consuming dead insects, fruits, lichen, and other plant matter. When threatened, the beetles are able to feign death. The species is becoming increasingly popular in the pet trade, due to their ease of care, hardiness, and longevity.
Tenebrio is a genus of darkling beetles. Adults are 12–18 mm (0.47–0.71 in) long and can live for 1–2 years. The larvae are minor pests, but they are also widely reared and sold as pet food.
Tenebrionini is a tribe of darkling beetles in the family Tenebrionidae. There are at least 20 genera in Tenebrionini.
Alphitobius laevigatus, the black fungus beetle, is a species of darkling beetle in the family Tenebrionidae. It is found in Europe and North America.
A plastivore is an organism capable of degrading and metabolising plastic. While plastic is normally thought of as non-biodegradable, a variety of bacteria, fungi and insects have been found to degrade it.