27 replies to this topic

[Ants_Dakota]

 

 

Loving this journal so far. I did happen to get a ton of Lasius this year, but since most tend to found after hibernation and have a pretty high founding mortality rate (especially brevicornis), I typically don't sell them until the end of founding or after getting nanitics. 

 

I currently have a lot of Lasius that I should be journaling about, but I rarely find time. I'll keep coming back to this journal frequently to see updates!

I am so glad you are enjoying it, and I am glad you found a lot of Lasius! I have been pretty down about their numbers recently due to the devastation by Tetramorium immigrans around my house recently, so glad your local area is still up and going. Did you catch a main flight, or do blacklights work for you? The hibernation mortality rate is definitely something I will look out for. If things don't go as well this year, I may think about skipping diapause for them next time, as that resulted in no mortality last year when I raised about 5 three-queen colonies. What species are you keeping? I totally get you are busy, especially running the largest ant business in the nation. Keep up the good work, and I especially appreciate your guides! Even though I don't buy ants, I do frequently keep tabs on the species you are selling. Also, I referenced your journal where you found a L. crypticus queen, what tipped you off to that not being americanus? I am just interested because I would love to create a layperson's guide to Lasius with pictures and measurements, something everyone can do. For example, in my ID thread here of a possible L. pallitarsis queen, I almost instantly noticed the size of the queen was different than L. neoniger, but this is never talked about on Antwiki (I do get size variations but I am just trying to find common trends). Again, thank you for taking the time to read, it is pretty lengthy and I know you have many responsibilities!
Ants_Dakota

 

I caught multiple main flights this year! Blacklights don't work so well for Lasius here.

 

I'm not sure what the queens that I used to call crypticus actually are, but they key out to neoniger. They seem to be consistently different from neoniger (this year I found a whole nest of them and took specimens) but I am unsure how to discern them, aside from coloration. It could be argued that they were some weird variant. Your journal actually inspired me to update mine so I listed everything I currently keep there. 

 

I'm not too sure about the queen you have - that could totally be pallitarsis. They are generally much bulkier, but it's tough to be able to confirm without seeing that offset basal tooth. Thanks for checking out the guides and your kind words in general!

 

Lucky! I just had a few smaller flights but it is ok, I don't need too many ants. That makes sense, I did notice the slightly yellowish hair on the abdomen, so that could be discernable with the naked eye. I am truly honored my journal can be inspiring to people, it is probably just as inspiring to myself to continue keeping ordinary ants in extraordinary ways!
Sadly, I am unsure how good of an angle I can get with the glass for that offset basal tooth, but I will definitely keep trying, and maybe sunlight will help.

[SlimMilk]

 

 

Firstly, thank you so much for creating an account and connecting with me! It is always wonderful to see new users and especially knowledgeable ones like yourself. Before making my L. brevicornis post, I did do a skim through the L. flavus journals on this forum, but it was a lot quicker than my look at the L. brevicornis labeled journals, so I definitely missed some. Nice that is some great growth! Do you heat your ants at all, and what do you use for their outworld? Last time I kept L. brevicornis every queen survived, although I actually did not hibernate them as I was really busy and didn't have a fridge. This year I am planning on doing some careful testing to ensure the fridge I now have is a good temperature for them. I did see stateside ants was out of stock of L. brevicornis, but usually Anthony would have them back in right now after a flight, which is why I lamented a little in the post above about the lack of availability of these amazing ants in the current ant market. Beautiful picture by the way!

Ants_Dakota

They're sitting in a test tube portal from Esthetic Ants right now but they're getting to the point where feeding them is a little difficult as they're currently using the outworld to house the cocoons. I am debating on upgrading their outworld but we shall see if they approach a difficult size before they have to go into hibernation. 

 

That is a good problems to have! I currently use a DIY outworld for my large L. neoniger colony and have yet to have ants escape or bunch around the top, which is great, although they definitely could in the future. What were you thinking of upgrading your outworld too? (also, your image is no longer working on your first post)

 

Yep fixed the image link in the first photo. Ended up moving them into a new outworld anyway since the original founding test tube they were in was almost out of water and it was turning yellow. I bought https://www.esthetic...dium-outworld-1 this outworld which looked pretty clean. The colony is actually treating their tube entrance now like a real entrance. There is around 5-10 workers now constantly at the front of the tube keeping guard with a couple of them scouting the outworld.

 

Loving this journal so far. I did happen to get a ton of Lasius this year, but since most tend to found after hibernation and have a pretty high founding mortality rate (especially brevicornis), I typically don't sell them until the end of founding or after getting nanitics. 

 

I currently have a lot of Lasius that I should be journaling about, but I rarely find time. I'll keep coming back to this journal frequently to see updates!

Actually happy to see you here Anthony as my brevicornis colony is from you directly haha! I might end up buying a neoniger from you post hibernation next year since I didn't have any luck finding a queen this year.

[Ants_Dakota]

 

 

 

Firstly, thank you so much for creating an account and connecting with me! It is always wonderful to see new users and especially knowledgeable ones like yourself. Before making my L. brevicornis post, I did do a skim through the L. flavus journals on this forum, but it was a lot quicker than my look at the L. brevicornis labeled journals, so I definitely missed some. Nice that is some great growth! Do you heat your ants at all, and what do you use for their outworld? Last time I kept L. brevicornis every queen survived, although I actually did not hibernate them as I was really busy and didn't have a fridge. This year I am planning on doing some careful testing to ensure the fridge I now have is a good temperature for them. I did see stateside ants was out of stock of L. brevicornis, but usually Anthony would have them back in right now after a flight, which is why I lamented a little in the post above about the lack of availability of these amazing ants in the current ant market. Beautiful picture by the way!

Ants_Dakota

They're sitting in a test tube portal from Esthetic Ants right now but they're getting to the point where feeding them is a little difficult as they're currently using the outworld to house the cocoons. I am debating on upgrading their outworld but we shall see if they approach a difficult size before they have to go into hibernation. 

 

That is a good problems to have! I currently use a DIY outworld for my large L. neoniger colony and have yet to have ants escape or bunch around the top, which is great, although they definitely could in the future. What were you thinking of upgrading your outworld too? (also, your image is no longer working on your first post)

 

Yep fixed the image link in the first photo. Ended up moving them into a new outworld anyway since the original founding test tube they were in was almost out of water and it was turning yellow. I bought https://www.esthetic...dium-outworld-1 this outworld which looked pretty clean. The colony is actually treating their tube entrance now like a real entrance. There is around 5-10 workers now constantly at the front of the tube keeping guard with a couple of them scouting the outworld.

 

Loving this journal so far. I did happen to get a ton of Lasius this year, but since most tend to found after hibernation and have a pretty high founding mortality rate (especially brevicornis), I typically don't sell them until the end of founding or after getting nanitics. 

 

I currently have a lot of Lasius that I should be journaling about, but I rarely find time. I'll keep coming back to this journal frequently to see updates!

Actually happy to see you here Anthony as my brevicornis colony is from you directly haha! I might end up buying a neoniger from you post hibernation next year since I didn't have any luck finding a queen this year.

 

Nice that is a cool outworld! It is a little plain though, I would recommend pouring a layer of sanded grout over it and than covering that with vermiculite. My lasius love it because they can remove the vermiculite to adjust the moisture output to their liking, and they are very good at that. Whenever I water their nest, they bring vermiculite into the nest to manage the moisture and decrease it, and than remove it as the water content slowly decreases with evaporation.
Here is my outworld, with some Black Hills bought rocks.

 

Not to dissuade you from buying from Anthony, but you could check to see if I have a permit for your state in my ant shop for Lasius in the coming months 

[SlimMilk]

Nice that is a cool outworld! It is a little plain though, I would recommend pouring a layer of sanded grout over it and than covering that with vermiculite. My lasius love it because they can remove the vermiculite to adjust the moisture output to their liking, and they are very good at that. Whenever I water their nest, they bring vermiculite into the nest to manage the moisture and decrease it, and than remove it as the water content slowly decreases with evaporation.

Here is my outworld, with some Black Hills bought rocks.

 

Not to dissuade you from buying from Anthony, but you could check to see if I have a permit for your state in my ant shop for Lasius in the coming months 

 

I thought it would be nicer to keep the outworld without a medium but yours definitely looks nice with at least a grout layer. I'll do some more research before deciding to do so. And unfortunately I'm located in NYC which you don't have permits for 

[Ants_Dakota]

 

Nice that is a cool outworld! It is a little plain though, I would recommend pouring a layer of sanded grout over it and than covering that with vermiculite. My lasius love it because they can remove the vermiculite to adjust the moisture output to their liking, and they are very good at that. Whenever I water their nest, they bring vermiculite into the nest to manage the moisture and decrease it, and than remove it as the water content slowly decreases with evaporation.

Here is my outworld, with some Black Hills bought rocks.

 

Not to dissuade you from buying from Anthony, but you could check to see if I have a permit for your state in my ant shop for Lasius in the coming months 

 

I thought it would be nicer to keep the outworld without a medium but yours definitely looks nice with at least a grout layer. I'll do some more research before deciding to do so. And unfortunately I'm located in NYC which you don't have permits for 

 

Research is always a must when designing an ant setup! Let me know what you find. I actually just received my New York permit, so I can now ship there

Edited by Ants_Dakota, September 16 2024 - 8:54 AM.

[SlimMilk]

 

Research is always a must when designing an ant setup! Let me know what you find. I actually just received my New York permit, so I can now ship there

 

Exciting! I will probably be waiting until after hibernation to decide if I want another colony or not. I actually had the craziest experience of finding a Camponotus Planatus queen in my fruit that I bought at my supermarket in NYC. She is a long way from home and its been about a month but she has yet to lay any eggs. I'm still holding out hope and keeping her with a heating cable to see if she eventually does lay. https://www.youtube....rts/AE9l5GRFTx8 (Volume warning possibly didn't realize it was picking up my AC so loudly on the video)

[Ants_Dakota]

 

 

Research is always a must when designing an ant setup! Let me know what you find. I actually just received my New York permit, so I can now ship there

 

Exciting! I will probably be waiting until after hibernation to decide if I want another colony or not. I actually had the craziest experience of finding a Camponotus Planatus queen in my fruit that I bought at my supermarket in NYC. She is a long way from home and its been about a month but she has yet to lay any eggs. I'm still holding out hope and keeping her with a heating cable to see if she eventually does lay. https://www.youtube....rts/AE9l5GRFTx8 (Volume warning possibly didn't realize it was picking up my AC so loudly on the video)

 

Wow that is unusual. I can say I have never had that experience before haha. Good luck with the colonies you have until next spring!

[Ants_Dakota]

Ants_Dakota's Lasius sp. Journal

Entry 5: Lasius pallitarsis

9/17/2024

Background

As a micro-summary of Entry 3, this year I was doing some reading on the Lasius genus on Antwiki and came across the "neoniger/niger complex" of ants; species that are very similar and competitively nest in similar locations. Lasius pallitarsis, according to Wilson in 1955, nests almost exclusively in forested locations, replacing Lasius americanus in the north and west as the dominant woodland Lasius species. South Dakota has very few forested locations, so I was pretty lucky to catch this queen. L. pallitarsis, L. americanus, L. neoniger, and L. niger are, according to Antwiki, often hard to identify from each other. " the large-eyed Lasius americanus can be confused with either of the other three species in the niger group: Lasius pallitarsis, Lasius neoniger, or Lasius niger." However, the queens are each relatively distinct. I hope this can help others ID their Lasius queens.

 

Lasius neoniger/niger complex queen identification:

Let's start with the common one around South Dakota, Lasius neoniger. Here, they nest almost exclusively in the Plains regions, having distinct boundaries with Lasius americanus which nest in the woodlands. L. neoniger queens are medium-sized in the Lasius genus. They are light to mid-color brown, and, when fed or about to lay eggs, display pale lines on their abdomen that are key to distinguishing it from L. americanus, as seen in the second picture. They are slightly larger than L. americanus and smaller than L. pallitarsis

 

 

 

Lasius americanus is generally darker in color than L. neoniger and L. pallitarsis and is somewhat more "compact". By this, I mean its body is more shoved together and shorter. It also does not display the pale lines when full or about to lay eggs.

 

 

A reference image for the size difference between L. americanus (left) and L. neoniger (right).

 

 

Lasius pallitarsis is larger than either of the two previously mentioned, and noticeably so to an experienced ant-keeper. However, it can easily be mistaken for someone new to ants, which is why, when posting an ID, please use the ID template and measure the size of the queen accurately. It is "more buff" in the sense that its thorax is noticeably larger than L. neoniger, the queen it would be most likely to be confused with, as its coloration is nearly identical. Its thorax is also more shiny. An ID thread I posted can be found here, which contains more pictures as well as the key to IDing this species properly.

 

 

A reference image for the size difference between L. pallitarsis (left) and L. neoniger (right).

 

 

 

Lasius niger is an ant I have not yet found, so I am not qualified to speak to its ID.

 

Background journals

The only other person who has and is keeping Lasius pallitarsis on this forum is AnthonyP163, who posted about their colony recently here. I was thrilled to find another ant-keeper who was as in love with Lasius as I am!

 

As a final sidenote, I was justly challenged by OiledOlives about my usage of the term "neoniger complex," as AntWiki usually refers to it as the "niger complex," such as above. However, there is a reference to the use of the word "neoniger complex" in Antwiki. "This species is replaced in nearly every available habitat except woodland by the equally successful and abundant members of the Lasius neoniger complex." Therefore, moving forward, I will be referring to this group as the "neoniger/niger complex" for the benefit of North American ant-keepers unless I am disproven.

 

My Queen

I caught this queen on 9/10/24 in Brookings, SD, during the last few nuptial flights of the year. I caught her alongside L. neoniger and several Myrmica queens. Interestingly, she was immediately aggressive toward the L. neoniger, which she was temporarily housed with at the time, ultimately killing one of the queens (not immediately but the queen died several days later from either injuries or PTSD or something).

 

9/10/24

 

 

 

 

 

9/11/24

 

 

9/17/24

 

 

This is a very important photo for an ID. Check out the ID thread for L. pallitarsis posted above to learn why!

 

 

 

This wraps up the current species of Lasius that I own, and I hope to grow this collection in the future!

Edited by Ants_Dakota, September 17 2024 - 6:17 AM.