Mealworm Beetle

In 1968, the mealworm beetle traveled to space and circled the moon on the Soviet mission Zond 5.
Mealworm Beetle Scientific Classification
Scientific name
Tenebrio molitor
Mealworm Beetle Physical Characteristics
Brown, Yellow, Black
3 to 12 months
Mealworm Beetle Distribition

Grownup mealworm beetles lay their little eggs in grain and grain containers, making it challenging for many property owners to identify them. Nevertheless, once they become larvae, they are quickly viewed as they are around an inch long. They adjust well to numerous environments and happen in worn out animals, grains, grain items, and numerous plant species.

Mealworm larvae are conveniently available as they are cost many pet shops for lure and to feed to lizards, turtles, and reptiles.

Enjoyable Information Regarding Mealworm Beetles

  • Mealworms can consume and absorb around 30 to 39mg of polystyrene daily.
  • In 1968, the mealworm beetle took a trip to area and circled around the moon on the Soviet goal Zond 5.
  • They come from the darkling beetle family and are primarily utilized for feeding pets like birds and reptiles. Nevertheless, some Eastern and African societies eat them also due to their high healthy protein web content.

Mealworm Beetle Species, Kind, and Scientific Name

2 species of darkling beetle generate mealworm larvae: the yellow mealworm beetle ( Tenebrio molitor Linnaeus) and the mini or dark mealworm beetle ( Tenebrio obscurus Fabricius), which is much less usual. The mealworm beetle is belonging to Europe however happens around the globe currently, other than in Antarctica.

Mealworm beetles come from the order Coleoptera, stemmed from the Greek words “koleos,” indicating sheath, and “ptera,” indicating wings. This describes their forewings that imitate a guard for their filmy hind wings.

This order, which contains beetles and weevils, is the biggest in the Insecta class. The majority of grown-up species in this order have hard, thick exoskeletons that shield most of their body’s surface area.

Their forewings are called elytra and are equally as solid as the beetle’s exoskeleton. They fold up over the whole abdominal area and work as safety guards for their huge, filmy hind wings.

Their most distinct attribute is the appearance of their elytra which fulfill along the facility of their backs, developing a straight line.

Mealworm beetles come from the family Tenebrionidae, the 5 th biggest family of the order Coleoptera. There more than 14,000 species in this family, with 1,345 species happening in the USA alone.

Nevertheless, these numbers are fairly reduced considering that, in the previous 3 years, the classification of the family has actually altered, with several brand-new taxa found every year.

Appearance: Exactly How To Determine the Mealworm Beetle

The mealworm beetle is normally dark brownish or black in shade and is usually misidentified as the predaceous ground beetle, however mealworm beetles usually have actually clubbed antennae. Nevertheless, both beetles are nighttime and normally flightless.

As a result of the large variety of species in this family, there are substantial variants in dimension and appearance. Nevertheless, a lot of them have actually lengthened oblong forms and squashed bodies. Mealworm beetles can come up to 1.5 inches long in The United States and Canada.

These beetles are separated right into 3 sectors: head, thorax, and abdominal area. They have stomach protective glandular storage tanks that produce an exceptionally nasty- scenting liquid, which is their chemical protection versus predators.

Environment: Where to Locate the Mealworm Beetle

Grownup mealworm beetles and their larvae are usually discovered near the dirt’s surface area. Nevertheless, they like staying in weed- loaded environments, under rocks or rocks, in ground cover, or on decaying logs.

On top of that, a number of species can adjust to staying in dry dunes or caverns. Some species also take control of various other animals’ houses, like birds, rodents, and termites.

Mealworms are usually discovered in grains and are an usual parasite in chicken cages and grain storage space containers. On top of that, they happen in individuals’ houses where there is grain with high wetness web content. Nevertheless, they are not usual insects in houses, and many individuals begin local business by elevating them in their houses and marketing the larvae as pet food or lure.

Diet: What Do Mealworm Beetles Eat?

Mealworm beetles are all-natural decomposers that eat feces, dead insects, and saved grains. They reside in environments where they are bordered by their main food resource, usually under rocks, animal burrows, logs, or saved grains.

Life Process of the Mealworm Beetle

These beetles undergo 4 phases of advancement:

  • Egg
  • Larvae
  • Pupa
  • Grownup

The overall period of their life process relies on elements like temperature level and food accessibility. Nevertheless, the mealworm beetle’s ordinary life process varies from 4 to year.

Egg Stage

The females begin looking for dark, private locations to lay their eggs in the late springtime or very early summertime. If they remain in structures throughout this moment, they will certainly lay their eggs in dish, flour containers, or grain. Females can injure to 300 white, bean- designed eggs at once.

Larva Stage

When the larvae hatch out, they are described as mealworms and are milklike white with slim, fractional bodies. As they expand, they begin to transform yellow-colored- brownish within a couple of days.

They prey on whatever borders them and expand to concerning an inch long while losing a number of times in the procedure, which infects food products.

Pupa Stage

They stay in their larvae phase up until Autumn and after that change right into pupae to hibernate. The pupae are C- designed, stout, and light yellow in shade, however as they go into the adult years, they come to be darker.

Grownup Stage

As soon as winter season mores than and the temperature level climbs, grown-up mealworm beetles will certainly begin to arise. Initially, they are white and orange however at some point transform dark yellow or black within a couple of days. These beetles are fairly slow-moving however can fly, making it simpler to take a trip and infest brand-new region. The grownups can measure up to 3 to year.

Avoidance: Exactly How to Do away with the Mealworm Beetle

Mealworm beetles do not create much damages however lug numerous illness that might adversely influence their host plant. They are additionally significant insects when elevating fowl due to the fact that they are providers of bird illness and Salmonella.

Plants are one of the most at risk plants in yards, so make certain to examine the more youthful plants usually. Try to find any kind of damages and inspect the dirt for the resource if you do locate anything.

Damages is normally brought on by darkling beetles and various other insects like cutworms. As a preventative action, you can set up a drifting row cover overtop, which must maintain them out.

If a problem happens, you should get rid of the resource by finding the plagued product and positioning it in a closed container prior to taking care of it. On top of that, you can freeze this container for 5 days, eliminating the grownups and eggs.

To stop more invasion, shop cupboard products like grain, grain, pet food, bird seed, and flour in limited containers.

They are additionally drawn in to animal feces, so if you have dogs and cats, get rid of any kind of waste matter from the residential property so as not to develop a breeding place for them.


  1. Epic Gardening, Available here:
  2. Beetle Identifications, Available here:
  3. Orkin, Available here:
  4. Wikipedia, Available here:

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