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

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
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

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

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

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


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Ground Beetles (Carabidae) » Harpalinae » Harpalitae » Sphodrini » Synuchus » Synuchus impunctatus
Photo#465347
Carabidae ID help! - Synuchus impunctatus
Copyright © 2010 Steve Cho

Carabidae ID help! - Synuchus impunctatus
Groton, Middlesex County, Massachusetts, USA
July 10, 2010
Size: approx 7mm

Images of this individual: tag all
Carabidae ID help! - Synuchus impunctatus Carabidae ID help! - Synuchus impunctatus Carabidae ID help! - Synuchus impunctatus
tag · login or register to post comments
Contributed by Steve Cho on 16 October, 2010 - 4:20pm
Last updated 3 April, 2014 - 12:34pm

Moved
Moved from Platynini.
… v belov, 3 April, 2014 - 12:35pm login or register to post comments

Moved
Moved from ID Request.
… John F. Carr, 23 October, 2010 - 8:56pm login or register to post comments

Possibly Synuchus by shape of pronotum
but still could be Agonum. Check if tarsal claws are serrated (tiny teeth) under high magnification which certainly would clinch Synuchus, otherwise Agonum. Besides our BugGuide photos have a look at the library of identified carabids on Tom Murray's personal website (many MA specimens).
… Peter W. Messer, 17 October, 2010 - 8:45am login or register to post comments

 
thank you
thank you.
here's a picture of its bottom...don't know if it will help...
i will try to take a look at it with a microscope soon.

thank you!
… Steve Cho, 20 October, 2010 - 2:28pm login or register to post comments

 
Agonum vs Synuchus impunctatus.
Body length "7 mm" is too small for Synuchus impunctatus. I just don't know without specimen under scope.
… Peter W. Messer, 20 October, 2010 - 9:51pm login or register to post comments

 
it had
serated tarsal claws!
i assume that labels it as synuchus?
… Steve Cho, 20 October, 2010 - 9:53pm login or register to post comments

 
Please recheck body length.
I would feel better about Synuchus impunctatus if your specimen was longer than 7 mm. My specimens are ~ 10 mm.
… Peter W. Messer, 20 October, 2010 - 10:11pm login or register to post comments

 
A problem with the mm marks...
Open both images with photoshop and overlay the first image with the second. Set transparency of second image to about 40 percent. Then adjust the top layer so that the mm marks are the same size and you will find that the pronotum in the second is about twice the size as the pronotum in the first image. I am not sure which one is wrong but one of them surely looks so...
… Ron M., 20 October, 2010 - 10:28pm login or register to post comments

 
hm...
i must have made a mistake on either one...
i have the specimen, so i will try to measure it today and post the length!
… Steve Cho, 21 October, 2010 - 8:47am login or register to post comments

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

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.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact