Aquatic Insect

Drain Fly Larvae

Psychodidae family

Caddisfly Larva

Order Trichoptera

Horse Fly

Tabanus spp. (genus, as specific species cannot be determined from the image)

Crane Fly

Tipulidae

Caddisfly

Trichoptera (Order Level)

Dragonfly (specifically a member of the Emerald family)

Somatochlora (genus species varies, often Somatochlora metallica or similar)

Dragonfly Nymph (or Larva)

Various species within the order Odonata, suborder Anisoptera

Caddisfly larva (case-bearing)

Too difficult to determine from the image alone without more specific morphological details, as it’s a larval stage and ...

Fishfly (Male)

Chauliodes pectinicornis

Non-biting midge

Chironomus plumosus

Dragonfly

Libellulidae (Skimmers) - likely a species within this family, possibly a widow skimmer (Libellula luctuosa) or similar.

Dragonfly

Odonata (Anisoptera)

Drain Fly (or Moth Fly, Filter Fly, Sewer Fly)

Psychoda spp. (or Clogmia albipunctata, depending on specific species, but Psychoda is most common for drain flies)

Bloodworm (Chironomid Larva)

Chironomidae (larval stage)

Mosquito

Culicidae

Drain Fly Larva

Psychodidae family (larval stage)

Crane Fly

Tipulidae

Ghost Midge (non-biting midge)

Family Chaoboridae (e.g., Chaoborus sp.)

Caddisfly Larva

Trichoptera larva (general designation as specific species cannot be determined from the image)

Mosquito (presumed bite reaction)

Various species within the Culicidae family (e.g., Anopheles, Aedes, Culex) (presumed bite reaction)

Drain Fly Larva (Moth Fly Larva)

Clogmia albipunctata (Family: Psychodidae)

Bloodworm (Midge Larva)

Chironomus plumosus (representative species)

Tardigrade (also known as Water Bear or Moss Piglet)

Tardigrada

Non-biting Midge

Chironomidae (family)

Hydra

Hydra (a genus, not a single species; common species include H. vulgaris, H. viridissima, H. oligactis)

Non-biting Midge Larva

Chironomidae (family)

Drain Fly

Psychodidae

Nematode (Roundworm)

Nematoda (Phylum)

Damselfly

Zygoptera spp.

Drain Fly (larvae)

Psychodidae (larvae)

Common House Mosquito

Culex pipiens

Inland Floater (Mussel) / Fragmented Glochidia

Pyganodon grandis

Crane Fly

Tipula species (or other genera within Tipulidae)

Horsehair worm

Nematomorpha

Globular Springtail

Sminthurides aquaticus (likely, based on the aquatic context)

Mosquito

Culicidae (family)

Drain Fly (or Moth Fly, Filter Fly)

Psychodidae (family)

Fungus Gnat Larvae, "Drain worms"

Sciaridae or Mycetophilidae (larvae)

Non-biting Midge

Chironomidae

Chironomid eggs

Family Chironomidae

Horse Fly

Tabanus spp.

Bloodworm

Chironomidae larvae (various genera and species)