Pest Control

Pests

Products

Pest Control Products Store 

Bedlam Bed Bug Spray

Holiday Schedule

Pest Control
Order Status

Privacy Policy

Return Policy

Search Our Site

Contact Us

Advion Roach Bait 

Aerosols 

Ant Baits

Ant Index

Animal Traps

B&G Sprayer

Baits

Bed Bugs and Bed Bug Control

Bedlam Mattress Spray

Bed Bug Mattress Covers

BoraCare

Borate Insecticides

Boxelders

Bumble Bees 

Carpenter Ants

Carpenter Bees

Chipmunks 

Cockroach Index

Cyper WP

Cypermethrin

D-Fense SC

Demon WP

Demon Insecticides

Demon Max 

Drain Flies

Fire Ants

Flea Stoppers Carpet Powder

Fleas

Fly Index 

Fly Sprays

Fruit Fly 

Herbicides

Imidacloprid

Insect Baits

Insect Bites

Insecticide Dusts

Insect Repellents

Invict Cockroach Bait

Lawn Pests

Matrix Fly Trap

Maxforce Baits

Maxforce Roach Bait Gel

Mice

Molecrickets

Moles

Mosquito Control

Moth Trap

Niban G, Niban FG

Nyguard IGR

Onslaught Insecticide

Permethrin

Powderpost Beetles

Pyganic Dust

Raccoons 

Rats

Roaches

Rat Traps

Rat Zapper 2000

Rodent Baits

Rodent Removal

Rodents

Safeguard Humane Live Animal Traps

Scythe Herbicide

SedgeHammer 

Spiders

Sluggo

Snakes

Snake-A-Way Snake Repellent

Snake Pictures

Squirrels 

Suspend SC

Talstar

Taurus SC

Tempo Insecticides

Termites 

Ticks

Ultraviolet Fly Traps

Fly Zappers

Wildlife

White Footed Ants

Woodpeckers 

Disclaimer

Darkling Beetles

Depending on your source of information, there can be anywhere from 12,000 to 20,000 species of the Tenebrionidae family which make up the group known as Darkling Beetles.  Encyclopedia Britannica gives us this definition:
"Darkling Beetle -- any member of the approximately 12,000 species of the insect family Tenebrionidae (order Coleoptera), so named because of their nocturnal habits. "
The immature larval stage of these beetles are known as mealworms.

Darkling Beetle Information    Darkling Beetle Pictures    Mealworm Picture

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Tenebrionidae
Genus: Tenebrio
Species: T. molitor

As an adult, the darkling beetle has a black body with hardened front wings and an eleven segmented antenna. Its head is visible when viewed from above. As larva, the darkling beetle is called the mealworm. The mealworms are about an inch in length and have a tough yellowish brown exoskeleton and are cylindrical. The mealworm has six small jointed legs, brown bands around their bodies and two antennae.

Darkling BeetleDarkling Beetles are found under rocks and logs and in animal burrows. Inside the home they are found in cabinets and pantries where cereal and grains are stored, in cornmeal, flour, cake mixes, meat scraps, around dead insects and in bran and litter from chicken houses. They are also found in termite and ant nests. Darkling Beetles eat both fresh and decaying vegetation including leaves, sticks, grasses and new plant growth. They also eat dead insects, feces and stored grains.

darkling beetle pictureDarkling Beetles go through complete metamorphosis during its life cycle. At the beginning of the mating process, the male chase the female until she gives up. He then mounts her and curls his tail underneath him and inserts. The female then burrows in soft ground and lays 275 tiny white oval eggs that hatch into mealworms. 

Mealworms, darkling beetle larvae Larvae are wormlike and hardened for burrowing. The mealworm molts up to 20 times and grows into the pupa stage. During this stage they do not eat. In the pupa stage they are ˝-3/4 inches long and white but darkens before the beetle emerges. Newly hatched beetles will sit still as its wings unfold and dry. After changing colors from brown to black it searches for a mate and only lives for a few months. The life cycle lasts three to five months.

Predators of mealworms and darkling beetles are birds, rodents, lizards, predatory beetles and spiders. When disturbed, some darkling beetles assume a defensive posture where they stand on their head and release chemicals from scent glands in their rear-end that produces noxious odors and can turn skin brown. They prefer darkness and like to have their body in contact with a nearby object. Mealworms are also known as the Superworm because they are used as a food source for reptile pet and in bird feeders. The Yellow Mealworm is known as the “golden grub” and is used primarily for fish bait. Mealworms have also been put into tequila flavored candies.

Credits: A big thanks to Lani Powell for researching and writing this Darkling Beetle Information article!

Animals and Pests    Beetles    General Pest Control    Site Map    Pests Site Map    Darkling Beetles