Skip to main navigation Skip to site navigation Skip to content

Home and Garden IPM from Cooperative Extension

Photo Gallery: Household Pests and Critters

: American Cockroach (female)

: American Cockroach (female)

: Bed Bug (adult)

: (additional example) Bed Bug (adult)

: Blow Fly

: Blow Fly

: A species of booklice (possibly Trogium pulsatorium)

: A species of booklice (possibly Trogium pulsatorium) (resting at the edge of a glass petri dish) (A closer view of the same specimen is shown in the adjacent image at left)

: Brown-banded Cockroaches (female: left; male: right)

: Camel Cricket

: Carpenter Ant (Winged Queen)

: Carpenter Ant (Winged Queen)

: A male Carpenter Ant

: Carpenter Ants (workers)

: A pair of Black Carpet Beetles and two carpet beetle larvae

: Cellar Spider (female with egg sac)

: Cluster Fly

: Drain Fly (additional example)

: Drugstore Beetle (Stegobium paniceum) (Alton, Maine; 8/2/2021)

: Drugstore Beetles (Stegobium paniceum) taken from a kitchen counter (with a penny for size comparison) (Alton, Maine; 8/2/2021)

: Drugstore Beetles (Stegobium paniceum) (Alton, Maine; 8/2/2021)

: Earwigs

: Eastern Boxelder Bug (Boisea trivittata) (adult stage) (Hallowell, ME; 4/19/2021)

: Eastern Boxelder Bug (Boisea trivittata) (adult stage) (Hallowell, ME; 4/19/2021)

: Eastern Parson Spider

: Dark Fishing Spider (Dolomedes tenebrosus) (Etna, ME; 3/21/2019)

: Fleas (Cat Flea shown here)

: Flour Beetles

: Four-lined Silverfish (Ctenolepisma lineatum)

: Fruit Fly (close-up view)

: Dark-winged Fungus Gnats (Family Sciaridae) captured on a yellow sticky card placed in the pot of a houseplant

: Closeup view of a fungus gnat (this particular specimen belongs to the genus called Trichonta) (Cape Elizabeth, ME; 11/27/2021)

: German cockroach (female) (Blattella germanica)

: Grain Beetle and larva/grub (Sawtoothed Grain Beetle)

: House Fly

: Pantry Moths / Flour Moths (Plodia interpunctella) (plus larvae and the webbing that the larvae spin)

: A mature Pantry Moth / Flour Moth (Plodia interpunctella) larva with some of its silk webbing that they spin (you can see the webbing between the larva and the coin)

: Pantry Moth / Flour Moth (Plodia interpunctella)

: Pantry Moth / Flour Moth (Plodia interpunctella)

: Jumping Spider

: Larder Beetle larva

: Larder Beetle (Dermestes lardarius)

: Larder Beetle (Dermestes lardarius)

: Lesser Grain Borers

: Meal Moth (Pyralis farinalis) (central Maine; 5/3/2021)

: Meal Moth (Pyralis farinalis) (resting on a bathroom wall with its abdomen curved up and out for more effective pheromone dispersal; central Maine; 5/10/2021)

: Meal Moth (Pyralis farinalis) (central Maine; 5/11/2021)

: Mealworms
(larvae and adults)

: Millipede

: Multicolored Asian Lady Beetle

: Group of Multicolored Asian Lady Beetles (adults move indoors in search of warm places to spend the winter)

: Pavement Ants (feeding on a cookie crumb)

: Powderpost Beetle

: Silverfish

: Sowbug

: Tanbark Borer / Violet Tanbark Beetle (Phymatodes testaceus) (Cape Elizabeth, ME; 5/4/2023) (Photo courtesy of MB)

: Termites (very rare in Maine)

: Termite (soldier)

: Termites (workers)

: Termites (winged reproductives)

: Termite reproductives who have lost their wings; they break off their wings a short time after swarming and mating.

: Ticks (ticks are often found indoors after hitching a ride on a person or a family pet)

: Two-Spotted Spider Mites

: Varied Carpet Beetle (Anthrenus verbasci) next to a U.S. penny for scale purposes (specimen from Orono, ME; 5/3/2023)

: Varied Carpet Beetle (Anthrenus verbasci) (magnified view; playing dead as they are apt to do)

: Western Conifer Seed Bug (Leptoglossus occidentalis)

: Western Conifer Seed Bug (Leptoglossus occidentalis)

: Whiteflies (adults with wings, immatures, and black/dead ones due to parasitism)

: Winter Firefly (Ellychnia corrusca) (5/3/2011; Etna, ME)

: Winter Firefly (Ellychnia corrusca) (5/3/2011; Etna, ME)

: Example of a wood roach (Dusky Cockroach, Ectobius lapponicus) (male) (Stetson, Maine; 7/13/2015)

: Example of a wood roach (Tawny Cockroach, Ectobius pallidus) (male) (Acadia National Park, Maine; 10/11/2009)

Additional Photos and Information:

American Cockroach
Ants
Bed Bugs
Blow Flies and Flesh Flies
Booklice
Boxelder Bugs (BugGuide.net) See also: Boxelder Bugs (Univ. of Minnesota Extension) (they come inside accidentally or in search of a warm location in which to spend the winter)
Brown-banded Cockroach
Camel Crickets
Carpenter Ants
Carpet Beetles
Cellar Spiders
Cluster Flies
Cockroaches
Drain Flies
Drugstore Beetles (Penn State) | See also Drugstore Beetle (BugGuide.net)
Earwigs
Eastern Boxelder Bugs (BugGuide.net) See also: Boxelder Bugs (Univ. of Minnesota Extension) (they come inside accidentally or in search of a warm location in which to spend the winter)
Eastern Parson Spider (Penn State)
Firebrats (and Silverfish)
Fishing Spider
Fleas
Flour Beetles
Four-lined Silverfish
Fruit Flies
Fungus Gnats
German Cockroach
Grain Beetles
House Flies
Indian Meal Moth
Jumping Spiders (University of Arizona)
Larder Beetles
Lesser Grain Borers
Meal Moth (BugGuide.net)
Mealworms
Millipedes
Multicolored Asian Lady Beetles (ladybugs are beneficial but they can be a household nuisance as well)
Pantry Moth
Parson Spider (Penn State)
Pavement Ants
Powderpost Beetles
Silverfish (and Firebrats)
Sowbugs (Univ. of Maryland / UMD Cooperative Extension)
Spiders
Tanbark Borer / Violet Tanbark Beetle (often encountered when they emerge indoors from oak firewood) (BugGuide.net)
Termites (Cornell University) — Rare in Maine; mostly occur only in pocket areas in some southern and coastal locations.
Ticks (likely carried in from outdoors on a person or a family pet)
Two-Spotted Spider Mites
Varied Carpet Beetles
Western Conifer Seed Bugs
Whiteflies (University of Missouri)
Winter Fireflies
Wood Roaches (outdoor roaches that sometimes find their way indoors accidentally; nuisance pest only)

Top