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

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

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

National Moth Week 2020 photos of insects and people.

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

Discussion, 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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events

Another image of the tiger rattlesnake

Another image of the tiger rattlesnake
Montosa Canyon Road, Santa Cruz County, Arizona, USA
July 26, 2013
Our BugGuide group from the 2013 AZ gathering ran into two herpers around noon at a canyon wash along the Montosa Cyn/Hopkins Peak Rd. They showed us some neat things, among them a giant desert centipede:

and a tiger rattlesnake (Crotalus tigris):

Can you make out the eyes in the photos taken by Ed and I? (Ed's is the 2nd thumb above...and the full-size version of my photo is here.) I find it curious that the eyes are so cryptic in those two photos, while they're clearly visible in Patrick's and Robyn's (3rd and 4th thumbs above).

General info on this species can be found on this "Reptiles of Arizona" web page; more photos and a range map appear here; and a technical article asserting that Crotalus tigris has the deadliest venom of any nearctic rattlesnake appears here.