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

Calendar
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


TaxonomyBrowseInfoImagesLinksBooksData
Photo#751321
ants with large hills, northern Idaho - Formica

ants with large hills, northern Idaho - Formica
Sandpoint, Northern County, Idaho, USA
March 15, 2013
We have two very large hills of these by are house we just bought. Some kind of wood ant? Inspector said we had signs of carpenter ant damage. So should I destroy these things? We got young children and they are very close to the house.

Images of this individual: tag all
ants with large hills, northern Idaho - Formica ants with large hills, northern Idaho - Formica ants with large hills, northern Idaho - Formica ants with large hills, northern Idaho - Formica

A belated follow-up
These could give a person a pinchy-painful nip if their nest is bothered, but are otherwise harmless. They also consume large quantities of other insects, especially plant-fedding ones like caterpillars, various sap-feeding true bugs, and leaf and seed eating beetles.

Moved
Moved from Ants.

*
Without a doubt this is the work of a Formica rufa group species. Which species? A confident identification would require some quality time with voucher specimens.

Moved for expert attention
Moved from ID Request.

Looks like this could be...
...the work of the Thatching ant (Formica obscuripes):



These are not dangerous or destructive creatures. You may very well have carpenter ants, but they're not living in this mound.

Welcome to BugGuide!

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.