Macroinvertebrate Pictures

Many thanks to Bob Henricks for compiling this excellent photo reference list

Mayfly (Ephemeroptera) – click here for general mayfly pictures

Brushlegged (Isonychiidae) larva adult other pictures
Little Stout Crawler (Leptohyphidae/Tricorythidae) larva adult
Small Squaregill (Caenidae) larva adult other pictures
Spiny Crawler (Ephemerellidae) larva adult other pictures
Flatheaded (Heptageniidae) larva adult other pictures
Pronggilled (Leptophlebiidae) larva adult other pictures
Small Minnow (Baetidae) larva adult other pictures
Ameletid (Ameletidae) larva adult other pictures
Armored mayfly (Baetiscidae) larva adult
Common Burrower mayfly (Ephemeridae) larva adult other pictures

Stonefly (Plecoptera) – click here for general stonefly pictures

Roachlike Stone (Peltoperlidae) larva adult other pictures
Giant (Pteronarcyidae) larva adult other pictures
Common (Perlidae) larva adult other pictures
Perlodid (Perlodidae) larva adult other pictures
Green (Chloroperlidae) larva adult other pictures
Nemourid (Nemouridae) larva adult other pictures
Large Winter (Taeniopterygidae) larva adult other pictures
Small Winter (Capniidae) larva adult other pictures
Rolledwinged (Leuctridae) larva adult other pictures

Caddisfly (Trichoptera) – click here for general caddisfly pictures

Snailcase Maker (Helicopsychidae) larva
Micro Caddisfly (Hydroptilidae) larva adult
Longhorned Case Maker (Leptoceridae) larva adult other pictures
Lepidostomatid (Lepidostomatidae) larva adult
Humpless Case Maker (Brachycentridae) larva adult other pictures
Saddlecase Maker (Glossosomatidae) larva adult
Uenoid Case Maker (Uenoidae) larva adult other pictures
Northern Case Maker (Limnephilidae) larva adult other pictures
Strongcase Maker (Odontoceridae) larva adult
Giant Case Maker (Phryganeidae) larva adult other pictures
Common Netspinner (Hydropsychidae) larva adult other pictures
Fingernet (Philopotamidae) larva adult other pictures
Trumpetnet (Polycentropodidae) larva adult other pictures
Freeliving (Rhyacophilidae) larva adult other pictures

Hellgrammites, Alderflies (Megaloptera) – click here for general megaloptera pictures

Hellgrammite (Corydalidae) larva adult other pictures
Alderfly (Sialidae) larva adult other pictures

Dragonflies, Damselflies (Odonata) – click here for general odonata pictures

Clubtail Dragonfly (Gomphidae) larva adult other pictures
Darner Dragonfly (Aeshnidae) larva adult other pictures
Skimmer Dragonfly (Libellulidae) larva adult other pictures
Spiketailed Dragonfly (Cordulegastridae) larva adult other pictures
Broadwinged Damselfly (Calopterygidae) larva adult other pictures
Spreadwinged Damselfly (Lestidae) larva adult other pictures
Narrowwinged Damselfly (Coenagrionaidae) larva adult other pictures

True Flies (Diptera) – click here for general true fly pictures

Net-winged Midges (Blephariceridae) larva adult
Dixid Midges (Dixidae) larva adult other pictures
Black Flies (Simuliidae) larva adult other pictures
Midge (Chironomidae) larva adult other pictures
Biting Midges (Ceratopogonidae) larva adult other pictures
Crane Flies (Tipulidae) larva adult other pictures
Soldier Flies (Stratiomyidae) larva adult other pictures
Horse Flies/ Deer Flies (Tabanidae) larva adult other pictures
Aquatic Snipe Flies (Athericidae) larva adult
Dance Flies (Empididae) larva adult other pictures
Phantom Crane Fly (Ptychopteridae) larva adult other pictures

Beetles (Coleoptera)- click here for general beetle pictures

Water Pennies (Psephenidae) larva adult other pictures
Crawling Water Beetles (Haliplidae) larva adult other pictures
Riffle Beetles (Elmidae) larva adult other pictures
Dryopid Beetles (Dryopidae) larva adult other pictures
Water Scavenger Beetles (Hydrophilidae) larva adult other pictures
Ptilodactylidae larva adult other pictures
Predaceous Diving Beetle (Dytiscidae) larva adult other pictures

Aquatic Moth

Pyralidae larva adult other

Clams (Bivalvia)

Pea Clam (Sphaeriidae) adult
Asian Clam (Corbiculidae) adult

Snails (Gastropoda) – click here for general snail pictures

Pleurocerid (Pleuroceridae) adult
Hydrobiid (Hydrobiidae) adult
Viviparid (Viviparidae) adult
Lymnaeid (Lynmaeidae) adult
Ancylid/Limpet (Ancylidae) adult
Planorbid (Planorbidae) adult
Physid (Physidae) adult

Crustaceans – click here for general crustacean pictures

Sow Bugs (Isopoda) adult
Scuds (Amphipoda) adult
Crayfish (Decapoda) adult

Flatworms (Planaria), Leeches (Hirudinea), and Aquatic Earthworms (Oligochaeta) – click here for general flatworm, leech and worm pictures

More Websites with Photos and Useful Info for Monitors

  • http://www.shl.uiowa.edu/services/limnology/macroinvertebrates/index.xml
  • http://www.entomology.umn.edu/midge/VSMIVP%20Key/English/GuidePage.htm. Click on “Insect Verification Program in the upper right corner, then click on the “Order,” then go to “Family.
  • http://bugguide.net
  • http://www.pbase.com/tmurray74/bugs
  • http://www.troutnut.com/
  • http://www.dfg.ca.gov/abl/Lab/CA_digital_ref_familylevel_home.asp
  • http://watermonitoring.uwex.edu/wav/monitoring
  • http://www.bgsd.k12.wa.us/hml/jr_cam/macros/amc/index.html
  • http://www.epa.gov/bioindicators/html/benthosclean.html
  • http://www.waterbugkey.vcsu.edu/. Click on the Order List, then on the picture of the Order. That will take you to an alphabetically arranged list of the Families within that Order.
  • http://www.aquatax.ca/TaxaKey.html
  • http://www.xerces.org/identification-guides/
  • http://www.bing.com/search?q=aquatic%20macroinvertebrate%20photos&form=SOLTBG
  • http://www.epa.gov/bioiweb1/
  • http://www.epa.gov/bioiweb1/html/invertebrate.html
  • http://www.dec.ny.gov/animals/35772.html
  • http://www.npwrc.usgs.gov/resource/taxa_i.htm. Scroll down to “Distributions,” then choose “Mayflies of the United States” or “Stoneflies of the United States,” click on the state of Virginia on the map, then choose the family you wish to check. That will lead you to a list of “genus and species” specimens that have been attested in our state.
  • http://www.westfly.com/entomology/entomology.shtml
  • http://www.flyfishusa.com/flies/stone.htm
  • http://www.discoverlife.org/
  • http://zipcodezoo.com/Key/Animalia/Heptageniidae_Family.asp
  • http://www.diptera.info/photogallery.php
  • http://www.vcrlter.virginia.edu/gallery/
  • http://www.flyline.com/entomology/
  • http://www.nwnature.net/macros/index.html
  • http://mkohl1.net/FWshells.html Snail photos.
  • http://www.pbase.com/michellemahood/caddis_family&page=1. Caddis photos.
  • http://www.xerces.org/wp-content/uploads/2009/03/xerces_macroinvertebrate_streamflow_fieldguide.pdf
  • http://www.mostreamteam.org/inverts.asp
  • http://www.epa.gov/bioiweb1/html/caddisfly_families.html
  • http://www.dec.ny.gov/animals/30965.html
  • http://www.dep.wv.gov/WWE/getinvolved/sos/Documents/Benthic/WVSOS_MacroIDGuide.pdf