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Test's Myrmecocystus Mexicanus (2/13/2021, 4 month's update)


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#1 Offline TestSubjectOne - Posted October 23 2020 - 3:47 PM

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10/23/2020:

 

Despite its large size, this species is known as one of the most challenging to raise in California. Fortunately for me a friend gave me three slow queens as well as the broods and nanitics of several others which allowed me to skip founding, the most difficult part of raising this species. I combined the workers, brood and two fertile queens into a single tube which went surprisingly well and with no aggression. I'm guessing that's a consequence of being a species with queens that expire faster than milk. The colony accepted and ate Drosophila hydei flies as well as swelling up with honey. About a week later I noticed that the workers had singled out the weaker queen and were harassing her by pulling on her legs. This is an early sign that they plan to kill her so I moved her into her own test tube with honey. I later dumped this colony into an old horizontal mini-hearth. Although I was initially worried that the queen would not be able to fit into the small nest entrance they moved in overnight without any issues. They got a honey feeder and a water feeder that they emptied surprisingly quickly for a desert species. I have had success feeding them fruit flies and rice-flour beetle larvae, which they prefer by far. Yesterday, however, I discovered their first queen dead inside the nest and covered with white mold and moved in their backup queen whom they promptly escorted inside the nest. They currently have seven workers, ten pupae and maybe twenty medium and large larvae. Besides the sudden queen death syndrome and general fragility, these ants are a lot easier to care for than I'd thought. They are fast growers, easily merge, don't seem to bothered by light and have enjoyed both feeders I gave them. They are also hands down the most adorable ants I have ever seen. Here are some pictures.

IMG 20201023 152648
IMG 20201023 153004
IMG 20201023 152653
Tiny ghost!
 

 


Edited by TestSubjectOne, February 13 2021 - 9:36 PM.

  • ANTdrew, M_Ants and TechAnt like this

TestSubjectOne's Experiences in Antkeeping General Journal

 

Currently Keeping:

- Veromessor pergandei (1 queen, 600 workers)

- Novomessor cockerelli (1 queen, 200 workers)

- Myrmecocystus mexicanus (1 queen, 100 workers)

- Brachymyrmex patagonicus (3 queens?, 2,000 workers? & alates)

- Crematogaster sp. (1 queen, 600 workers)

- Liometopum occidentale (1 queen, 800 workers)

- Camponotus absqualator (1 queen, 130 workers)


#2 Offline TechAnt - Posted October 23 2020 - 3:55 PM

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Awesome, love the pots!


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My Ants:
(x1) Campontous semitstaceus ~20 workers, 1 Queen
(x1) Camponotus vicinus ~10 workers, 1 Queen (all black variety)
(x1) Tetramorium immigrans ~100 workers, 1 Queen
(x1) Myrmercocystus mexicanus -1 Queen
(x2) Mymercocystus mimcus -1 Queen
(x1) Mymercocystus testaceus ~45 workers, 1 Queen

#3 Offline TestSubjectOne - Posted February 13 2021 - 9:34 PM

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2/13/2021:

 

IMG 20210213 135657
This colony has been growing steadily in the past four months, up to around 35 workers and a good amount of brood. I haven't been feeding them as consistently as I would like to because unlike most of my colonies, they seem to prefer to drink the liquids of their feeders and leave most of the actual body behind. This makes it seem like they have less of an appetite than they actually do, which caused me to underfeed them until I realized it. Nevertheless, they have advanced a lot since my last update. They have been hatching new workers, much larger than those before but still not near the size of some workers I have seen in pictures of fully grown colonies. Some of these workers have been becoming minipletes, like those shown in the picture above. These workers have taken the burden of food storage off the queen, which can be seen in the picture with her reduced gaster size. I've read that this allows her to produce more eggs, and whether or not that's true this colony has a large amount of brood in all stages. Below is an image of a worker feeding a larva, while another worker eats from a cricket leg that they brought in. I love the way that Myrmecocystus and Lasius larvae look, especially with food in their stomachs. In my opinion, they are the most beautiful of any ant genera.
IMG 20210213 135529

 

 
Here is a closeup picture of one of the minipletes, showing her semitransparent gaster. She's missing a leg but doesn't seem to be affected by it.
IMG 20210213 134952
 
 
Finally, this image is of the pile of pupae and eggs, located in the corner opposite the water tower. It looks surprisingly similar to my image of the same pile from months before, but the location is reasonable for cocoons as it is both the driest spot due to its distance from the water tower and the hottest because it is almost in direct contact with the pad that heats the incubator.
IMG 20210213 135345

 

 


Edited by TestSubjectOne, February 13 2021 - 11:08 PM.

TestSubjectOne's Experiences in Antkeeping General Journal

 

Currently Keeping:

- Veromessor pergandei (1 queen, 600 workers)

- Novomessor cockerelli (1 queen, 200 workers)

- Myrmecocystus mexicanus (1 queen, 100 workers)

- Brachymyrmex patagonicus (3 queens?, 2,000 workers? & alates)

- Crematogaster sp. (1 queen, 600 workers)

- Liometopum occidentale (1 queen, 800 workers)

- Camponotus absqualator (1 queen, 130 workers)


#4 Offline M_Ants - Posted February 13 2021 - 9:37 PM

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Looking good. Just curious, why do you call them minipletes? 


Veromessor pergandei

Veromessor andrei

Crematogaster sp. 

Pogonomyrmex cf cali and rugosus

Various Pheidole

C. yogi 

https://www.youtube....FG7utFVBA/about


#5 Offline TestSubjectOne - Posted February 13 2021 - 11:03 PM

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Looking good. Just curious, why do you call them minipletes? 

I heard the term in TechAnt's journal, and it seems fitting to describe the smaller repletes of young colonies.

Edit: I just checked to confirm and it was you that originally posted the term. I hope you don't mind that I borrowed it.


Edited by TestSubjectOne, February 13 2021 - 11:06 PM.

TestSubjectOne's Experiences in Antkeeping General Journal

 

Currently Keeping:

- Veromessor pergandei (1 queen, 600 workers)

- Novomessor cockerelli (1 queen, 200 workers)

- Myrmecocystus mexicanus (1 queen, 100 workers)

- Brachymyrmex patagonicus (3 queens?, 2,000 workers? & alates)

- Crematogaster sp. (1 queen, 600 workers)

- Liometopum occidentale (1 queen, 800 workers)

- Camponotus absqualator (1 queen, 130 workers)


#6 Offline M_Ants - Posted February 14 2021 - 9:49 AM

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Looking good. Just curious, why do you call them minipletes? 

I heard the term in TechAnt's journal, and it seems fitting to describe the smaller repletes of young colonies.

Edit: I just checked to confirm and it was you that originally posted the term. I hope you don't mind that I borrowed it.

 

Haha! Yes! My name is catching on. I don't mind at all. Lol.


Edited by M_Ants, February 14 2021 - 9:50 AM.

Veromessor pergandei

Veromessor andrei

Crematogaster sp. 

Pogonomyrmex cf cali and rugosus

Various Pheidole

C. yogi 

https://www.youtube....FG7utFVBA/about





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