Click to go back to the Pest Guide

Beetles

bee
  • Adult beetles have two sets of wings.
  • Female beetles usually lay dozens or hundreds of eggs.
  • Most beetles only live for a year.
  • Beetles cannot see very well, so they communicate using pheromones , sounds or vibrations.
  • Some beetles are not considered pests. "Ladybugs" are beetles and are considered to be good luck in many cultures. "Fireflies" and "Lightning bugs" are also beetles. They glow in the dark to communicate.


There are 12,000 different kinds of beetles in the United States and over 300,000 species in the world. Beetles are found on land and in fresh water and can adapt to almost any environment. Beetles usually just live where they eat.

Beetles can both hurt and help the environment. Some beetle species destroy crops or property, while some species help get rid of garbage, eat dead trees or help pollinate flowers.

Find information on beetle pest control at the official NPMA website.

Carpet Beetle

carpet beetle
Varied carpet beetles get their name from the rainbow of color on their backs. It can take up to three years for them to grow from an egg to an adult. Adult beetles only live between 13 and 44 days!

 

Size: 1/16"

Shape: Round

Color: Black centers, with white, brown and yellow patches.

Legs: 6

Wings: Yes

Antenna: Yes

click to download info sheet  

Common Name: Varied Carpet Beetle

Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta

Order: Coleoptera

Family: Dermestidae

Species: Anthrenus verbasci

DIET

Varied Carpet beetles mostly eat carpet, wool, dead insects, furs, hides, feathers, horns, hair, silk and bones.

HABITAT

Varied carpet beetles are found in attics, wool carpets, tapestries and wall-to-wall carpeting.


IMPACT

Varied carpet beetles can ruin clothing, upholstery and carpet by eating it.

PREVENTION
  • Since beetles are drawn to fibers, to protect your clothing keep your clothes off the floor, store un-used clothing in plastic bags or containers and dry clean clothing before storing it.

Powder Post Beetle

Carpenter Ant
There are 11 species of Powder Post beetles in the United States. They have long, narrow, flat bodies. Adult beetles fly and are attracted to light.
 

Size: 1/8" to 1/4"

Shape: Narrow, Oval

Color: Reddish brown to black

Legs: 6

Wings: Yes

Antenna: Yes

click to download info sheet  

Common Name: Powder Post Beetle

Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta

Order: Coleoptera

Family: Lyctidae

Species: Lyctus brunneus

DIET

Lyctid Powder Post beetles usually feed on hard woods.

HABITAT

Lyctid Powder Post beetles lay their eggs in cracks of wood. They are found in hardwood floors, timbers and crates, antiques and other things made of hard wood.

IMPACT

Lyctid Powder Post beetles dig holes in wood. They can kill or damage trees and things made from wood like furniture. There are even documented cases that powder post beetles have destroyed houses!

PREVENTION

  • Paint or seal any exposed or raw wood in your home.

Merchant Grain Beetle

merchant
These beetles have extremely flat bodies. This body shape allows them to crawl into packaged foods to eat, live and reproduce. It only takes them about 3-4 weeks to grow from baby to adult and an adult Merchant Grain beetle can live up to 3 years.

Merchant Grain beetles can be found all over the world and can live in cooler climates. Once confused with a kind of beetle that does eat grain, the Merchant beetle was scientifically re-categorized, but the name stuck. These beetles get their name because they were commonly found on merchant ships, hiding in organic cargo.
 

Size: 1/10" to 1/8"

Shape: Narrow, oval, flat

Color: Brown

Legs: 6

Wings: Yes

Antenna: Yes

click to download info sheet  

Common Name: Merchant Grain Beetle

Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta

Order: Coleoptera

Family: Anobiidae

Species: Lyctus

DIET

Merchant grain beetles don’t really eat whole grain products. They are drawn to foods high in fat, such as cereals, cake mixes, macaroni, cookies and chocolate.

HABITAT

Merchant grain beetles are found in pantries or in food processing areas or warehouses.

IMPACT

Merchant grain beetles can get into stored food and can contaminate food by laying eggs and leaving waste behind.

PREVENTION
  • Discard infested packages.
  • Clean up spilled grain and food.

Click to go back to the Pest Guide.