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Mealworm
Mealworms are the larval form of the yellow mealworm beetle, Tenebrio molitor, a species of darkling beetle.
The yellow mealworm beetle prefers a warmer climate and higher humidity. Male mealworm beetles release a sex pheromone to attract females to mate.
Tenebrio molitor has been used in biomedical research. Mealworms can be a dietary source for animals and humans. They are also considered pests, especially to food storage.
Like all holometabolic insects, T. molitor goes through four life stages: egg, larva, pupa, and adult. Larvae typically measure about 2.5 centimetres (0.98 in) or more. Adults are generally 1.25 to 1.8 centimetres (0.49 to 0.71 in) in length.
T. molitor is dark brown or black as an adult, with larvae up to 1.25 inches (3.2 cm) long and adults up to 0.75 inches (1.9 cm) long.
The yellow mealworm beetle can be differentiated from other beetles, due to the linear grooves that are evenly divided and run along the abdomen. The beetle has only four tarsal segments on its hind legs. Most ground beetles, which are similar in size to Tenebrio molitor, have five tarsal segments.
Commonly mistaken with the black mealworm beetle (T. obscurus), key variations in regard to size and shape distinguish these two. The abdomen of the adult black mealworm beetle is more rounded and ends in a pointed tip, as opposed to the more rectangular and blunt-ended abdomen of the yellow mealworm beetle. The larvae of T. molitor are lighter colored than those of T. obscurus.
Mealworms most-likely originated in the Mediterranean region, but are now present in many areas of the world as a result of human trade and colonization. The oldest archaeological records of mealworms can be traced to Bronze Age Turkey. Records from the British Isles and northern Europe are from a later date, and mealworms are conspicuously absent from archaeological finds from ancient Egypt.
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Mealworm
Mealworms are the larval form of the yellow mealworm beetle, Tenebrio molitor, a species of darkling beetle.
The yellow mealworm beetle prefers a warmer climate and higher humidity. Male mealworm beetles release a sex pheromone to attract females to mate.
Tenebrio molitor has been used in biomedical research. Mealworms can be a dietary source for animals and humans. They are also considered pests, especially to food storage.
Like all holometabolic insects, T. molitor goes through four life stages: egg, larva, pupa, and adult. Larvae typically measure about 2.5 centimetres (0.98 in) or more. Adults are generally 1.25 to 1.8 centimetres (0.49 to 0.71 in) in length.
T. molitor is dark brown or black as an adult, with larvae up to 1.25 inches (3.2 cm) long and adults up to 0.75 inches (1.9 cm) long.
The yellow mealworm beetle can be differentiated from other beetles, due to the linear grooves that are evenly divided and run along the abdomen. The beetle has only four tarsal segments on its hind legs. Most ground beetles, which are similar in size to Tenebrio molitor, have five tarsal segments.
Commonly mistaken with the black mealworm beetle (T. obscurus), key variations in regard to size and shape distinguish these two. The abdomen of the adult black mealworm beetle is more rounded and ends in a pointed tip, as opposed to the more rectangular and blunt-ended abdomen of the yellow mealworm beetle. The larvae of T. molitor are lighter colored than those of T. obscurus.
Mealworms most-likely originated in the Mediterranean region, but are now present in many areas of the world as a result of human trade and colonization. The oldest archaeological records of mealworms can be traced to Bronze Age Turkey. Records from the British Isles and northern Europe are from a later date, and mealworms are conspicuously absent from archaeological finds from ancient Egypt.