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


Photo#342649
Dytiscus alaskanus - male

Dytiscus alaskanus - Male
West Campus Park, Calgary, Alberta, Canada
August 2, 2009
Size: 30 mm
From bottle trap; large males of this species are very similar to small males of D. dauricus- dissection of adeagus is usually best to reliably identify such individuals

Images of this individual: tag all
Dytiscus alaskanus - male Dytiscus alaskanus - male Dytiscus alaskanus - male