Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Clickable Guide

Interactive image map to choose major taxa 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

Calendar

Upcoming Events

National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

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

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

Superfamily Ephemerelloidea

Spiny Crawler Mayflies · Little Stout Crawler Mayflies · Large Squaregill Mayfly

Family Ephemerellidae - Spiny Crawler Mayflies
Mayfly - Eurylophella - female May Fly - Eurylophella Ephemerellidae, genus Drunella - Drunella Orange Mayfly_Shasta County - Ephemerella Ephemeroptera naiad Ephemeroptera Ephemeroptera - Attenella - female Mayfly with eggmass - female

Family Leptohyphidae - Little Stout Crawler Mayflies
Mayfly - Tricorythodes Ephemeroptera - Tricorythodes Colorado Mayfly ID - Tricorythodes 6036796 mayflies - Tricorythodes explicatus Caenis? - Tricorythodes Caenis? - Tricorythodes Caenis? - Tricorythodes Tricorythodes nymph - Tricorythodes

Family Neoephemeridae - Large Squaregill Mayfly
Neoephemera purpurea Neoephemera sp. - Neoephemera Neoephemera sp. - Neoephemera Neoephemera youngi Neoephemera youngi Neoephemera youngi


Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

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