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Lasius niger (Wegmier)


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#21 Offline Wegmier - Posted August 5 2020 - 3:08 AM

Wegmier

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Update 16: Callow Room (12-09-2019)
 
They're still doing great. The colony has recently hollowed out two adult dubia roaches that I fed them
 
There's still loads of larvae. I'm expecting one more baby boom before hibernation
 
All the callows who just emerged from their cocoons are hanging out:
owYJK6U.png

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#22 Offline Wegmier - Posted August 5 2020 - 3:15 AM

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Update 17: Naked pupae (25-09-2019)
 
Another big pile of cocoons. It's always fun to watch the ants take care of their brood
 
There's also some naked pupae visible in there: larvae that didn't manage to spin a cocoon but are still metamorphosing into adult workers

wXdS4Eq.jpg

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#23 Offline Wegmier - Posted August 5 2020 - 3:19 AM

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Update 18: Getting used to the cold (09-10-2019)
 
As hibernation is approaching, I opened the windows again. Chilly!
 
This way the ants can gradually ease into hibernation. It's interesting to see the colony's behaviour changing with the temperature. It was very cold (14 °C) for a moment and a large group of workers started gathering in the outworld... Even newly emerged callows came out of the nest... Not sure why
 
I'm putting the colony in the fridge around the end of October / early November

1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#24 Offline Wegmier - Posted August 5 2020 - 4:03 AM

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Update 19: Another year (16-03-2020)
 
The colony went into the fridge four months ago, now they've emerged from hibernation. All pupae had eclosed before hibernation. However the colony still had a lot of larvae at that point. That shouldn't have been a problem because larvae can survive hibernation, but the huge larvae-to-worker ratio had me a bit bit worried at the time. But they all seem to have survived!
 
Early march I began raising the temperature of the fridge. A few days ago I took the colony out and they've completely woken up. They seem very active, though they barely accept any food yet

FPSp2hq.jpg

Lots of tiny larvae who have hibernated:
tntoWtO.jpg

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#25 Offline RushmoreAnts - Posted August 5 2020 - 5:00 AM

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Wish we had L. niger. Our native Lasius aren't nearly as prolific and hardy. If we wanted something that grew as fast as your colony did we'd have to keep Tetramorium (many of us do, actually), which has become a destructive invasive in North America. But anyways, I love your colony, partially because the journal was very organized and fun to read. Keep up the good work!


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"God made..... all the creatures that move along the ground according to their kinds (including ants). And God saw that it was good. Genesis 1:25 NIV version

 

Keeping:

Tetramorium immigrans

Formica cf. pallidefulva, cf. incerta, cf. argentea

Formica cf. aserva, cf. subintegra

Pogonomyrmex occidentalis

Pheidole bicarinata

Myrmica sp.

Lasius neoniger, brevicornis


#26 Offline Antkid12 - Posted August 5 2020 - 5:21 AM

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Wow, awesome colony!


Ants I have: Tapinoma sessile(2 queen colony). RED MORPH Camponotus neacticus(now has pupae!), Tetramorium immigrans (x3), Aphaenogaster sp, Temnothorax sp, Brachymyrmex sp.   possibly infertile   :(,  Ponera pennsylvanica, and Pheidole morrisi!  :yahoo: 

 

Other insects: Polistes sp. Queen

                    

Ants I need: Pheidole sp., Trachymyrmex sp., Crematogaster cerasi , Dorymyrmex sp. Most wanted: Pheidole morrisii

 

                    

                   

 

 


#27 Offline Kaelwizard - Posted August 5 2020 - 6:05 AM

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Wish we had L. niger. Our native Lasius aren't nearly as prolific and hardy. If we wanted something that grew as fast as your colony did we'd have to keep Tetramorium (many of us do, actually), which has become a destructive invasive in North America. But anyways, I love your colony, partially because the journal was very organized and fun to read. Keep up the good work!

Are L. neoniger not as hardy?

#28 Offline Wegmier - Posted August 5 2020 - 6:21 AM

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Wish we had L. niger. Our native Lasius aren't nearly as prolific and hardy. If we wanted something that grew as fast as your colony did we'd have to keep Tetramorium (many of us do, actually), which has become a destructive invasive in North America. But anyways, I love your colony, partially because the journal was very organized and fun to read. Keep up the good work!

Ooh I see. I've actually been trying to find a Tetramorium queen for a while now. The most common Tetramorium here (T. caespitum) is granivorous which I think would be fascinating to keep. And thank you!

 

Wow, awesome colony!

 

Thanks!


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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#29 Offline Wegmier - Posted August 5 2020 - 6:26 AM

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Update 20: Nest options (18-03-2020)
 
Hundreds of worksters are in the outworld and in the vinyl tube leading to it. They're just sitting still in the outworld, instead of foraging... Are they treating it as a part of their nest now? Maybe they've outgrown their 3d-nests
 
Tomorrow I'll connect them to either another 3d-nest I bought, or my first ever Ytong nest

Workers just sitting idly in the outworld:
hhtQoGB.png

Choices... The larger 3d-nest I bought, or the huge Ytong nest I carved?:
oQCmyJH.png

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#30 Offline NickAnter - Posted August 5 2020 - 6:38 AM

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Id like to see a journal on the Lasius fuliginosus! And that nest looks really good!!


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Hi there! I went on a 6 month or so hiatus, in part due, and in part cause of the death of my colonies. 

However, I went back to the Sierras, and restarted my collection, which is now as follows:

Aphaenogaster uinta, Camponotus vicinus, Camponotus modoc, Formica cf. aserva, Formica cf. micropthalma, Formica cf. manni, Formica subpolita, Formica cf. subaenescens, Lasius americanus, Manica invidia, Pogonomyrmex salinus, Pogonomyrmex sp. 1, Solenopsis validiuscula, & Solenopsis sp. 3 (new Sierra variant). 


#31 Offline Kaelwizard - Posted August 5 2020 - 6:38 AM

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Start with the 3D then once they outgrow all three of them move the whole colony out of those nests and into the Ytong nest. That way the colony will take up more space in the Ytong nest since it is so big.
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#32 Offline Wegmier - Posted August 5 2020 - 6:43 AM

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Update 21: Exploration (29-03-2020)
 
I was hoping to attach the Ytong nest. But because of a dumb mistake that I made, the Ytong was still soaking wet. It would take a few days for it to dry. I ended up attaching the new 3D-formicarium instead.
 
They immediately started exploring their new nest! Nigers are very confident and eager explorers

(I wish I had made better pictures at the time, some of these are blurry screenshots of a video)

20 minutes after attaching the nest:
hcGlBz0.png

A day later, the majority of the colony had moved in!:
0Fgcs9C.png

Some of the larvae that hibernated have turned into a nice pupa pile:
D7ZooKe.png

The queen engaging in trophallaxis with a worker (top-right above the gypsum plug):
Up2KE24.jpg

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#33 Offline Wegmier - Posted August 5 2020 - 6:50 AM

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Update 22: The brood pile grows (02-04-2020)
 
The colony is eating a lot now. It's difficult for me to estimate how much they really need... I'm going to set-up a dubia roach culture. That'll hopefully be a good long-term solution for protein?

The queen has started laying eggs again and is constantly swarmed by workers

l9Mv88v.png

The beginnings of physogastry - or just full on reserves?
p0wcKiO.png

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#34 Offline Wegmier - Posted August 5 2020 - 6:55 AM

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Update 23: Easter (13-04-2020)
 
That clutch of eggs of two weeks ago has grown significantly. That's hundreds of future workers on the way!
 
I gave the colony a piece of cooked egg today - it's Easter after all. The workers took a tiny amount of egg yolk into the nest, but otherwise they didn't seem very interested in it

LGg94hO.png

Semi-cooked egg yolk
ABi8GGa.png

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#35 Offline Wegmier - Posted August 5 2020 - 7:01 AM

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Update 24: Cocoon Garden (01-05-2020)
 

The new main nest is filling up nicely

The colony has allocated a corner of their outworld for the disposal of cocoon shreds

KS8QCUa.jpg


Edited by Wegmier, August 5 2020 - 7:01 AM.

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#36 Offline Wegmier - Posted August 5 2020 - 7:05 AM

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Update 25: Escape Attempt? (02-05-2020)
 
I just now noticed that the colony almost broke through the talcum barrier in one corner! In my blind spot too. Clever girls.
How long have they been going at this?
 
I'm just glad that I found out in time.

lYgXK55.jpg

  • RushmoreAnts likes this

1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#37 Offline Wegmier - Posted August 5 2020 - 7:11 AM

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Update 26: The egg pile grows (14-05-2020)
 
Not much else to report

One time when trying to tap springtails into their outworld, I accidentally dropped the entire springtail culture in it... Cocos substrate and all. I can't remove it without hundreds of ant escapees, so I'm gonna leave it as it is.

GKsCpdv.jpg

HrWaa4r.jpg

Edited by Wegmier, August 5 2020 - 3:04 PM.

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#38 Offline Wegmier - Posted August 5 2020 - 7:21 AM

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Update 27: Ytong nest & new lands (29-05-2020)
 
I made a new Ytong/AAC nest for the colony! I wasn't really satisfied with my first one

It took hours of chiseling with a flat screwdriver, but I'm happy with the results

8N57IyA.jpg

After attaching the new nest, workers immediately rushed in to scout it. Within ten minutes they had started moving brood to the Ytong nest.
 
A day later a good share of the colony has moved in! Including most of the larvae

DRBAKLF.jpg

Edited by Wegmier, August 5 2020 - 3:05 PM.

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1 x Lasius niger -  https://www.formicul...-wegmier/page-6

1 x Lasius flavus - https://www.formicul...flavus-wegmier/

4 x Camponotus fedtschenkoi - https://www.formicul...-wegmier/page-2


#39 Offline BlueLance213 - Posted August 5 2020 - 7:49 AM

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What temp do you keep your colony at? Mine are just being kept at room temp which us 20C, I know that that temp is fine but us it ideal for the colony?
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#40 Offline TechAnt - Posted August 5 2020 - 9:41 AM

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Wegmier, your journal is simply brilliant, brilliant I say. Also, if you have not used it already, have you tried fluon as a escape barrier so the ants won’t escape? Fluon is by far one of the best escape barriers, and surely should keep them in, its only a bit pricey though. Also I love the Ytong nest, it looks like a professional brand for formicaria, if you got some non toxic paint it could look nicer.

Edited by TechAnt, August 5 2020 - 9:44 AM.

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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




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