Jump to content

  • Chat
  •  
  •  

Welcome to Formiculture.com!

This is a website for anyone interested in Myrmecology and all aspects of finding, keeping, and studying ants. The site and forum are free to use. Register now to gain access to all of our features. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation points to your fellow members, get your own private messenger, post status updates, manage your profile and so much more. If you already have an account, login here - otherwise create an account for free today!

Photo

Chicago, IL Ant ID Request, 10/14/25


Best Answer cooIboyJ , October 14 2025 - 12:30 PM

Looks like Lasius neoniger or Lasius americanus. Both are very common and easy to keep species.

Go to the full post


  • Please log in to reply
9 replies to this topic

#1 Offline Mr.Teddy - Posted October 14 2025 - 12:20 PM

Mr.Teddy

    Newbie

  • Members
  • Pip
  • 4 posts

First post, apologies if there are missing elements. I am a STEM teacher attempting to raise ants with my class for a little hands-on learning. Thank you in advance for your expertise (and patience with my amateurishness)! 

 

1. Location of collection: Edgewater, in Chicago, IL. 

2. Date of collection: 9/9/2025.

3. Habitat of collection: A grassy patch of otherwise dry, almost dusty, compacted soil near the beach (unable to pull up the technical terms).

4. Length: Approx. 8mm. Could not remove from enclosure for fear of disturbing.

5. Coloration, hue, pattern and texture: Chocolate brown, with velvety, almost iridescent gaster with golden "ridges" between plates. No hair that I can identify. 

6. Distinguishing characteristics: No petiole nodes or spines/bumps that I can identify, waist seems to be very short, almost non-existent. Unsure of antennal segments.

7. Anything else distinctive: Nothing else distinctive, cooperative with her workers, seems to have a more active, less sedentary role.

8. Nest description: Small hole flush with the ground, no mounds, dusty grey, compacted soil near the beach, slightly gravelly. 

9. Nuptial flight time and date: Did not witness.

 

Attached Images

  • IMG_4541.jpeg
  • IMG_4537.jpeg
  • IMG_4538.jpeg
  • IMG_4540.jpeg
  • IMG_4539.jpeg

  • rptraut likes this

#2 Offline cooIboyJ - Posted October 14 2025 - 12:30 PM   Best Answer

cooIboyJ

    Advanced Member

  • Members
  • PipPipPip
  • 603 posts
  • LocationHenderson, NV

Looks like Lasius neoniger or Lasius americanus. Both are very common and easy to keep species.


  • Stubyvast and Mr.Teddy like this

The ants go marching.

 

Currently keeping:

Brachymyrmex patagonicus

Nylanderia vividula

Forelius pruinosus


#3 Offline Mr.Teddy - Posted October 14 2025 - 12:48 PM

Mr.Teddy

    Newbie

  • Members
  • Pip
  • 4 posts

Thank you very much!!!


  • cooIboyJ likes this

#4 Offline Stubyvast - Posted October 14 2025 - 6:15 PM

Stubyvast

    Advanced Member

  • Members
  • PipPipPip
  • 331 posts
  • LocationBritish Columbia, Canada

Yup, I'd second that. Lasius americanus would be my guess, just based on the species I've kept.


  • Mr.Teddy likes this

Manica invidia (1 queen,  ~200 workers)

Manica invidia (1 colonies, 1 queens plus 3 workers)

Lasius niger (single queen, ~200 workers - naturalistic, predatory set-up)

Lasius americanus (1 colony, ~10 workers)

Tetramorium immigrans (3 colonies, 3 queens, ~ five workers each | 1 colony, 1 queen, ~1200 workers)

Formica aserva (aserva queen, ~15  â€‹Formica neorufibarbis workers)

 

"And God made...everything that creeps on the ground according to its kind. 

And God saw that it was good." - Genesis 1:25

 


#5 Offline Zhuge - Posted October 15 2025 - 7:04 PM

Zhuge

    Advanced Member

  • Members
  • PipPipPip
  • 145 posts
  • LocationWashington state (The no Pheidole side)

Id say Lasius neoniger or Lasius niger because Lasius americanus are more of woodland ants.


  • Mr.Teddy likes this

If you have permits to ship pheidole californica to washington pls lmk

Keeping:

Solenopsis molesta

Pogonomyrmex occidentalis

Tetramorium immigrans

Camponotus modoc

8 Lasius queens


#6 Offline cooIboyJ - Posted October 16 2025 - 7:31 AM

cooIboyJ

    Advanced Member

  • Members
  • PipPipPip
  • 603 posts
  • LocationHenderson, NV
Lasius niger do not live in America.
  • Mr.Teddy likes this

The ants go marching.

 

Currently keeping:

Brachymyrmex patagonicus

Nylanderia vividula

Forelius pruinosus


#7 Offline Mr.Teddy - Posted October 16 2025 - 11:26 AM

Mr.Teddy

    Newbie

  • Members
  • Pip
  • 4 posts

Thank you all!


  • cooIboyJ likes this

#8 Offline Zhuge - Posted October 16 2025 - 3:00 PM

Zhuge

    Advanced Member

  • Members
  • PipPipPip
  • 145 posts
  • LocationWashington state (The no Pheidole side)

Lasius niger do not live in America.

Oh my bad they are exotic in new york oregon and washington. Not Illinois. I still say probably not lasius americanus because those are mostly in forests.


  • cooIboyJ likes this

If you have permits to ship pheidole californica to washington pls lmk

Keeping:

Solenopsis molesta

Pogonomyrmex occidentalis

Tetramorium immigrans

Camponotus modoc

8 Lasius queens


#9 Offline cooIboyJ - Posted October 16 2025 - 4:08 PM

cooIboyJ

    Advanced Member

  • Members
  • PipPipPip
  • 603 posts
  • LocationHenderson, NV

 

Lasius niger do not live in America.

Oh my bad they are exotic in new york oregon and washington. Not Illinois. I still say probably not lasius americanus because those are mostly in forests.

 

Lasius americanus are not exclusive to forests, as they can be found commonly in other places, just most commonly in forests.


The ants go marching.

 

Currently keeping:

Brachymyrmex patagonicus

Nylanderia vividula

Forelius pruinosus


#10 Offline Zhuge - Posted October 16 2025 - 7:22 PM

Zhuge

    Advanced Member

  • Members
  • PipPipPip
  • 145 posts
  • LocationWashington state (The no Pheidole side)

 

 

Lasius niger do not live in America.

Oh my bad they are exotic in new york oregon and washington. Not Illinois. I still say probably not lasius americanus because those are mostly in forests.

 

Lasius americanus are not exclusive to forests, as they can be found commonly in other places, just most commonly in forests.

 

Yes but lasius neoniger and other lasius replace  Lasius americanus in open areas commonly


If you have permits to ship pheidole californica to washington pls lmk

Keeping:

Solenopsis molesta

Pogonomyrmex occidentalis

Tetramorium immigrans

Camponotus modoc

8 Lasius queens





1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users