Other

Flea

Various species, e.g., Ctenocephalides felis (cat flea), Pulex irritans (human flea)

Fungus Gnat

Sciaridae or Mycetophilidae (familial groups)

Carpet Beetle (Larva)

Too difficult to identify the exact species from the image provided. However, generally belong to the genus Koilus' and ...

German Cockroach

Blattella germanica

Indianmeal Moth Larva, Mealworm (general term for beetle larvae)

Plodia interpunctella (for Indianmeal Moth larva), Tenebrio molitor (common mealworm species)

Stink Bug

Halyomorpha halys (Brown Marmorated Stink Bug) or similar species within Pentatomidae

Cockroach (likely German or Asian cockroach)

Blattella germanica (German Cockroach) or Blattella asahinai (Asian Cockroach)

Case-bearing Clothes Moth Larva (or Casemaking Clothes Moth Larva)

Tinea pellionella

Bed Bug

Cimex lectularius

Weevil (General)

Curculionidae (many genera and species)

Grub (Beetle Larva)

Various species within Scarabaeidae (e.g., Phyllophaga spp., Popillia japonica)

Crane Fly Larva (Leatherjacket)

Tipula spp. (Larva of various species within the Tipulidae family)

Nematode (Roundworm)

Nematoda (Phylum)

Household Casebearer (often specifically the Plaster Bagworm)

Phereoeca uterella (formerly Phereoeca dubitatrix for Plaster Bagworm) or Tinea pellionella (Case-bearing Clothes Moth)

Earwig

Forficula auricularia (Common European earwig, but there are many species)

Slug

Arion rufus (likely, given the common 'banana slug' appearance, but visual identification is not definitive for precise ...

Caddisfly

Trichoptera (Order)

Cutworm (larva)

Agrotis spp., Peridroma spp., Feltia spp. (general examples, specific species cannot be determined from image)

Ants

Formicidae

Ghost Moth / Swift Moth (larva)

Hepialidae (larva)

German Cockroach

Blattella germanica

American Bird Grasshopper

Schistocerca americana

Plaster Bagworm (or Household Casebearer)

Phereoeca uterella

There is no identifiable bug or insect in this image

N/A - Non-biological material likely

Katydid

Tettigoniidae (various species)

Booklouse

Various species in the order Psocoptera

Ant

Formicidae (Family)

Case-bearing Clothes Moth

Tinea pellionella

Hornet (likely European Hornet or related large wasp species)

Vespa (European Hornet: Vespa crabro, or similar large Vespinae species)

Masked Hunter Nymph (Camouflaged state)

Reduvius personatus

Case-bearing Clothes Moth (larva)

Tinea pellionella

Mayfly

Various species within Ephemeroptera

Moth (likely a Owlet Moth or similar)

Unable to determine exact species from image, but likely within Noctuidae family

Large Milkweed Bug

Oncopeltus fasciatus

Ant

Formicidae

Bloodworm (Chironomid Larva)

Chironomidae (larval stage)

Darkling beetle / Ironclad beetle (likely a species of Tenebrionidae)

Family Tenebrionidae (specific genus and species cannot be determined from the image alone)

Silverfish

Lepisma saccharina

Horsehair Worm

Nematomorpha

Horsehair Worm (also known as Gordian Worm)

Nematomorpha (Phylum)

Clover Mite

Bryobia praetiosa

Leech

Hirudinea