Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Subclass Copepoda - Copepods

Nauplius Cyclopoida - male Copepod Cyclopod - female Copepoda Acartia tonsa - Acartia Microcyclops rubellus Water mite
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Class Maxillopoda (Maxillopods)
Subclass Copepoda (Copepods)
Usually 5 mm or less.
Body segmented and cylindrical.
Aquatic habitats from fresh water to hypersaline; including vernal pools, subterranean caves, bromeliad leaves, or leaf litter.
Some graze bottom detritus, others filter plankton, and others are predaceous.
the most numerous metazoans in the water community (metazoan: multi-celled animals).
Print References
Works Cited
1.A Field Guide to the Animals of Vernal Pools
Leo P. Kenney and Matthew R. Burne. 2000. Massachusetts Division of Fisheries & Wildlife Natural Heritage & Endangered Species Program and Vernal Pool Association.