#lasius — Public Fediverse posts

The #brood of my #Lasius #niger (#Formicinae) #colonyfounding setup is still the result of multiple founding queens (#pleometrosis), even though the colony will later become monogynous. Various stages are visible: eggs, young larvae, and a pupal #cocoon. The cocoon is a #plesiomorphic (ancestral) trait in ants; it has been lost through convergent evolution on several occasions, e.g., in the #Myrmicinae.
©#StefanFWirth

Please support me: https://ko-fi.com/sfwirth

#Photos:
© S.F.Wirth, 2026

The #brood of my #Lasius #niger (#Formicinae) #colonyfounding setup is still the result of multiple founding queens (#pleometrosis), even though the colony will later become monogynous. Various stages are visible: eggs, young larvae, and a pupal #cocoon. The cocoon is a #plesiomorphic (ancestral) trait in ants; it has been lost through convergent evolution on several occasions, e.g., in the #Myrmicinae.
©#StefanFWirth

Please support me: https://ko-fi.com/sfwirth

#Photos:
© S.F.Wirth, 2026

The #brood of my #Lasius #niger (#Formicinae) #colonyfounding setup is still the result of multiple founding queens (#pleometrosis), even though the colony will later become monogynous. Various stages are visible: eggs, young larvae, and a pupal #cocoon. The cocoon is a #plesiomorphic (ancestral) trait in ants; it has been lost through convergent evolution on several occasions, e.g., in the #Myrmicinae.
©#StefanFWirth

Please support me: https://ko-fi.com/sfwirth

#Photos:
© S.F.Wirth, 2026

The #brood of my #Lasius #niger (#Formicinae) #colonyfounding setup is still the result of multiple founding queens (#pleometrosis), even though the colony will later become monogynous. Various stages are visible: eggs, young larvae, and a pupal #cocoon. The cocoon is a #plesiomorphic (ancestral) trait in ants; it has been lost through convergent evolution on several occasions, e.g., in the #Myrmicinae.
©#StefanFWirth

Please support me: https://ko-fi.com/sfwirth

#Photos:
© S.F.Wirth, 2026

#Pleometrosis in #ants, e.g. #Lasius #niger, is a #behavior involving the collective founding of a #nest by #multiple #youngqueens, even in later #monogynous species.
S.Stukalyuk and T.Czaczkes (2024) report on a #hyperdense #population of L. niger in Ukraine with #reducedaggression between neighbor nests+queens during pleometrosis.
©#StefanFWirth

Support me https://ko-fi.com/sfwirth

Reference
Stukalyuk and T. Czaczkes (2024)
https://doi.org/10.1101/2024.07.16.603683

#Photos
©S.F.Wirth, L.niger pleometrosis

#Pleometrosis in #ants, e.g. #Lasius #niger, is a #behavior involving the collective founding of a #nest by #multiple #youngqueens, even in later #monogynous species.
S.Stukalyuk and T.Czaczkes (2024) report on a #hyperdense #population of L. niger in Ukraine with #reducedaggression between neighbor nests+queens during pleometrosis.
©#StefanFWirth

Support me https://ko-fi.com/sfwirth

Reference
Stukalyuk and T. Czaczkes (2024)
https://doi.org/10.1101/2024.07.16.603683

#Photos
©S.F.Wirth, L.niger pleometrosis

#Pleometrosis in #ants, e.g. #Lasius #niger, is a #behavior involving the collective founding of a #nest by #multiple #youngqueens, even in later #monogynous species.
S.Stukalyuk and T.Czaczkes (2024) report on a #hyperdense #population of L. niger in Ukraine with #reducedaggression between neighbor nests+queens during pleometrosis.
©#StefanFWirth

Support me https://ko-fi.com/sfwirth

Reference
Stukalyuk and T. Czaczkes (2024)
https://doi.org/10.1101/2024.07.16.603683

#Photos
©S.F.Wirth, L.niger pleometrosis

#Pleometrosis in #ants, e.g. #Lasius #niger, is a #behavior involving the collective founding of a #nest by #multiple #youngqueens, even in later #monogynous species.
S.Stukalyuk and T.Czaczkes (2024) report on a #hyperdense #population of L. niger in Ukraine with #reducedaggression between neighbor nests+queens during pleometrosis.
©#StefanFWirth

Support me https://ko-fi.com/sfwirth

Reference
Stukalyuk and T. Czaczkes (2024)
https://doi.org/10.1101/2024.07.16.603683

#Photos
©S.F.Wirth, L.niger pleometrosis

Here is a citronella ant, one of the most aromatic of all insects. I really love these things.

New photo from western New York. #Ants #Insects #lasius

Here is a citronella ant, one of the most aromatic of all insects. I really love these things.

New photo from western New York. #Ants #Insects #lasius

Here is a citronella ant, one of the most aromatic of all insects. I really love these things.

New photo from western New York. #Ants #Insects #lasius

Here is a citronella ant, one of the most aromatic of all insects. I really love these things.

New photo from western New York. #Ants #Insects #lasius

Yet another species of ant on this elm tree (and the carpenters are still asleep!) this is probably Lasius, maybe Lasius neoniger?
#antphoto #Lasius

Yet another species of ant on this elm tree (and the carpenters are still asleep!) this is probably Lasius, maybe Lasius neoniger?
#antphoto #Lasius

Yet another species of ant on this elm tree (and the carpenters are still asleep!) this is probably Lasius, maybe Lasius neoniger?
#antphoto #Lasius

Yet another species of ant on this elm tree (and the carpenters are still asleep!) this is probably Lasius, maybe Lasius neoniger?
#antphoto #Lasius

This is the sighting map for Lasius emarginatus. It's become rather famous in NYC, and I've observed it many times this spring. Based on the articles I've read, Lasius emarginatus is not found in cities in Europe and tends to live in trees in the forest? Is this true? Have any of ya'll over there seen this ant?

Also, I'm not buying that this ant hasn't made it to any other US cities. I will explain how to spot it and identify it.

#Lasiusemarginatus #lasius #ants

https://www.inaturalist.org/taxa/341143-Lasius-emarginatus#map-tab

1/

This is the sighting map for Lasius emarginatus. It's become rather famous in NYC, and I've observed it many times this spring. Based on the articles I've read, Lasius emarginatus is not found in cities in Europe and tends to live in trees in the forest? Is this true? Have any of ya'll over there seen this ant?

Also, I'm not buying that this ant hasn't made it to any other US cities. I will explain how to spot it and identify it.

#Lasiusemarginatus #lasius #ants

https://www.inaturalist.org/taxa/341143-Lasius-emarginatus#map-tab

1/

This is the sighting map for Lasius emarginatus. It's become rather famous in NYC, and I've observed it many times this spring. Based on the articles I've read, Lasius emarginatus is not found in cities in Europe and tends to live in trees in the forest? Is this true? Have any of ya'll over there seen this ant?

Also, I'm not buying that this ant hasn't made it to any other US cities. I will explain how to spot it and identify it.

#Lasiusemarginatus #lasius #ants

https://www.inaturalist.org/taxa/341143-Lasius-emarginatus#map-tab

1/

This is the sighting map for Lasius emarginatus. It's become rather famous in NYC, and I've observed it many times this spring. Based on the articles I've read, Lasius emarginatus is not found in cities in Europe and tends to live in trees in the forest? Is this true? Have any of ya'll over there seen this ant?

Also, I'm not buying that this ant hasn't made it to any other US cities. I will explain how to spot it and identify it.

#Lasiusemarginatus #lasius #ants

https://www.inaturalist.org/taxa/341143-Lasius-emarginatus#map-tab

1/

At first they ran, but they they had to capture and kill both of the foragers who stumbled on their tiny home.

In the Bronx we still don't have many Lasius emarginatus so the pavement is ruled by Tetramorium immigrans who have all started staking out the best locations.

I was happy to see that the Camponotus castaneus colony in the park survived the winter. I will bring them some feeder crickets. They are my favorite.

#Lasiusemarginatus #lasius #ants

At first they ran, but they they had to capture and kill both of the foragers who stumbled on their tiny home.

In the Bronx we still don't have many Lasius emarginatus so the pavement is ruled by Tetramorium immigrans who have all started staking out the best locations.

I was happy to see that the Camponotus castaneus colony in the park survived the winter. I will bring them some feeder crickets. They are my favorite.

#Lasiusemarginatus #lasius #ants

At first they ran, but they they had to capture and kill both of the foragers who stumbled on their tiny home.

In the Bronx we still don't have many Lasius emarginatus so the pavement is ruled by Tetramorium immigrans who have all started staking out the best locations.

I was happy to see that the Camponotus castaneus colony in the park survived the winter. I will bring them some feeder crickets. They are my favorite.

#Lasiusemarginatus #lasius #ants

At first they ran, but they they had to capture and kill both of the foragers who stumbled on their tiny home.

In the Bronx we still don't have many Lasius emarginatus so the pavement is ruled by Tetramorium immigrans who have all started staking out the best locations.

I was happy to see that the Camponotus castaneus colony in the park survived the winter. I will bring them some feeder crickets. They are my favorite.

#Lasiusemarginatus #lasius #ants

We think of Lasius ants (fuzzy garden ants) as small but this Lasius emarginatus (the ManhatANT) worker has either killed or foraged a much larger black ant and is scaling a vertical wall to take it back to her nest. Urban ants are often more attracted to protein than sweets. They are the largest lasius workers I’ve ever seen.

#Lasiusemarginatus #lasius #ants

We think of Lasius ants (fuzzy garden ants) as small but this Lasius emarginatus (the ManhatANT) worker has either killed or foraged a much larger black ant and is scaling a vertical wall to take it back to her nest. Urban ants are often more attracted to protein than sweets. They are the largest lasius workers I’ve ever seen.

#Lasiusemarginatus #lasius #ants

We think of Lasius ants (fuzzy garden ants) as small but this Lasius emarginatus (the ManhatANT) worker has either killed or foraged a much larger black ant and is scaling a vertical wall to take it back to her nest. Urban ants are often more attracted to protein than sweets. They are the largest lasius workers I’ve ever seen.

#Lasiusemarginatus #lasius #ants

We think of Lasius ants (fuzzy garden ants) as small but this Lasius emarginatus (the ManhatANT) worker has either killed or foraged a much larger black ant and is scaling a vertical wall to take it back to her nest. Urban ants are often more attracted to protein than sweets. They are the largest lasius workers I’ve ever seen.

#Lasiusemarginatus #lasius #ants

There is a Lasius emarginatus colony right by the front door of my school that I've been watching for about 4 years. They enjoy the garden of one of the houses next-door to our school. Every winter I wonder if they are gone forever, but every spring they emerge again from the same tiny hole.

They like to have a single entrance to their colony just like Lasius neoniger.

I wonder how they found their colonies? When do they fly? This should be a fun summer!

#Lasiusemarginatus #lasius #ants

There is a Lasius emarginatus colony right by the front door of my school that I've been watching for about 4 years. They enjoy the garden of one of the houses next-door to our school. Every winter I wonder if they are gone forever, but every spring they emerge again from the same tiny hole.

They like to have a single entrance to their colony just like Lasius neoniger.

I wonder how they found their colonies? When do they fly? This should be a fun summer!

#Lasiusemarginatus #lasius #ants

There is a Lasius emarginatus colony right by the front door of my school that I've been watching for about 4 years. They enjoy the garden of one of the houses next-door to our school. Every winter I wonder if they are gone forever, but every spring they emerge again from the same tiny hole.

They like to have a single entrance to their colony just like Lasius neoniger.

I wonder how they found their colonies? When do they fly? This should be a fun summer!

#Lasiusemarginatus #lasius #ants

There is a Lasius emarginatus colony right by the front door of my school that I've been watching for about 4 years. They enjoy the garden of one of the houses next-door to our school. Every winter I wonder if they are gone forever, but every spring they emerge again from the same tiny hole.

They like to have a single entrance to their colony just like Lasius neoniger.

I wonder how they found their colonies? When do they fly? This should be a fun summer!

#Lasiusemarginatus #lasius #ants

Found a Lasius neoniger queen on the sports field so I moved her to a safer place. Fed her some water. Hope she can survive the winter! She is so beautiful #ant #Lasius #queen

Found a Lasius neoniger queen on the sports field so I moved her to a safer place. Fed her some water. Hope she can survive the winter! She is so beautiful #ant #Lasius #queen

Found a Lasius neoniger queen on the sports field so I moved her to a safer place. Fed her some water. Hope she can survive the winter! She is so beautiful #ant #Lasius #queen

Found a Lasius neoniger queen on the sports field so I moved her to a safer place. Fed her some water. Hope she can survive the winter! She is so beautiful #ant #Lasius #queen

I love how this queen Lasius arizonicus ant is smooth like glass. She’s a social parasite who , after dropping her wings, sneaks into existing ant colonies, kills the resident queen, and takes over.

So much drama. #Lasius #Ants #Insects

I love how this queen Lasius arizonicus ant is smooth like glass. She’s a social parasite who , after dropping her wings, sneaks into existing ant colonies, kills the resident queen, and takes over.

So much drama. #Lasius #Ants #Insects

I love how this queen Lasius arizonicus ant is smooth like glass. She’s a social parasite who , after dropping her wings, sneaks into existing ant colonies, kills the resident queen, and takes over.

So much drama. #Lasius #Ants #Insects

I love how this queen Lasius arizonicus ant is smooth like glass. She’s a social parasite who , after dropping her wings, sneaks into existing ant colonies, kills the resident queen, and takes over.

So much drama. #Lasius #Ants #Insects

Was mich an #Ameisen besonders fasziniert, ist ihr unglaublicher Universalismus; gerade bei der Nahrungssuche. Auf dem ersten Bild ist eine Große Wiesenameise an einem extrafloralen #Nektarium einer (glaube ich) Vogelkirsche zu sehen. Diese Nektarien produzieren gerade beim Austreiben der Blätter viel Nektar um Ameisen anzulocken, welche dann vor Fressfeinden schützen. Wie die Pflanze verhindert, dass die Ameisen, wie die #Lasius im zweiten Bild, #Blattlaus Herden auf ihnen weiden, weiß ich nicht.

A Lasius americanus worker ant carrying the silken cocoon of one of her many younger sisters in the brood nest. Indiana Dunes National Park. #Insects #ants #Lasius

A Lasius americanus worker ant carrying the silken cocoon of one of her many younger sisters in the brood nest. Indiana Dunes National Park. #Insects #ants #Lasius

A Lasius americanus worker ant carrying the silken cocoon of one of her many younger sisters in the brood nest. Indiana Dunes National Park. #Insects #ants #Lasius

A Lasius americanus worker ant carrying the silken cocoon of one of her many younger sisters in the brood nest. Indiana Dunes National Park. #Insects #ants #Lasius

The #antbagbeetle #Clytra laeviuscula (#Chrysomelidae, #Coleoptera) is a #phytophagous #beetle #species widespread in Europe with a #myrmicophilic relationship of the #larvae and #pupae to #antnests of the genera #Formica, #Lasius and Camponotus. The larva lives mainly from the food of the ant larvae. It is protected from ant attacks by own dropping pieces (#skatoconches). Pupation also takes place in this protected manner. #evolution #biodiversity

© #StefanFWirth Berlin 2024

The #antbagbeetle #Clytra laeviuscula (#Chrysomelidae, #Coleoptera) is a #phytophagous #beetle #species widespread in Europe with a #myrmicophilic relationship of the #larvae and #pupae to #antnests of the genera #Formica, #Lasius and Camponotus. The larva lives mainly from the food of the ant larvae. It is protected from ant attacks by own dropping pieces (#skatoconches). Pupation also takes place in this protected manner. #evolution #biodiversity

© #StefanFWirth Berlin 2024

The #antbagbeetle #Clytra laeviuscula (#Chrysomelidae, #Coleoptera) is a #phytophagous #beetle #species widespread in Europe with a #myrmicophilic relationship of the #larvae and #pupae to #antnests of the genera #Formica, #Lasius and Camponotus. The larva lives mainly from the food of the ant larvae. It is protected from ant attacks by own dropping pieces (#skatoconches). Pupation also takes place in this protected manner. #evolution #biodiversity

© #StefanFWirth Berlin 2024

The #antbagbeetle #Clytra laeviuscula (#Chrysomelidae, #Coleoptera) is a #phytophagous #beetle #species widespread in Europe with a #myrmicophilic relationship of the #larvae and #pupae to #antnests of the genera #Formica, #Lasius and Camponotus. The larva lives mainly from the food of the ant larvae. It is protected from ant attacks by own dropping pieces (#skatoconches). Pupation also takes place in this protected manner. #evolution #biodiversity

© #StefanFWirth Berlin 2024

_Lasius_ nuptial flight day!!! _L. neoniger_, I'm pretty sure. These are some of the most common ants I see, but I'd never seen a nuptial flight till now.

I found an alate the moment after she detached her wings!

#bugstodon #antstodon #insects #ants • #Hymenoptera #Formicidae #Lasius

_Lasius_ nuptial flight day!!! _L. neoniger_, I'm pretty sure. These are some of the most common ants I see, but I'd never seen a nuptial flight till now.

I found an alate the moment after she detached her wings!

#bugstodon #antstodon #insects #ants • #Hymenoptera #Formicidae #Lasius

_Lasius_ nuptial flight day!!! _L. neoniger_, I'm pretty sure. These are some of the most common ants I see, but I'd never seen a nuptial flight till now.

I found an alate the moment after she detached her wings!

#bugstodon #antstodon #insects #ants • #Hymenoptera #Formicidae #Lasius

_Lasius_ nuptial flight day!!! _L. neoniger_, I'm pretty sure. These are some of the most common ants I see, but I'd never seen a nuptial flight till now.

I found an alate the moment after she detached her wings!

#bugstodon #antstodon #insects #ants • #Hymenoptera #Formicidae #Lasius

For those who know anything about ants, here's a weird one: Lasius xerophilus.

Most Lasius species live in north temperate/boreal forests. This one? Sand dunes in North American deserts. A total oddball, and unexpected, living alongside classic desert species like Pogonomyrmex harvester ants.

Photographed at Monahans Sand Dunes, Texas.

#Ants #Lasius #Deserts #Insects

For those who know anything about ants, here's a weird one: Lasius xerophilus.

Most Lasius species live in north temperate/boreal forests. This one? Sand dunes in North American deserts. A total oddball, and unexpected, living alongside classic desert species like Pogonomyrmex harvester ants.

Photographed at Monahans Sand Dunes, Texas.

#Ants #Lasius #Deserts #Insects

For those who know anything about ants, here's a weird one: Lasius xerophilus.

Most Lasius species live in north temperate/boreal forests. This one? Sand dunes in North American deserts. A total oddball, and unexpected, living alongside classic desert species like Pogonomyrmex harvester ants.

Photographed at Monahans Sand Dunes, Texas.

#Ants #Lasius #Deserts #Insects

For those who know anything about ants, here's a weird one: Lasius xerophilus.

Most Lasius species live in north temperate/boreal forests. This one? Sand dunes in North American deserts. A total oddball, and unexpected, living alongside classic desert species like Pogonomyrmex harvester ants.

Photographed at Monahans Sand Dunes, Texas.

#Ants #Lasius #Deserts #Insects

Königinnen und Männchen der gelben Wegeameise verlassen das Erdnest.

#Lasiusflavus #Flugameise #Lasius #Ameisen #Ameise #Wegeameisen #gelbeWegeameise #Tiere #Insekten #Hautflügler #Natur

Königinnen und Männchen der gelben Wegeameise verlassen das Erdnest.

#Lasiusflavus #Flugameise #Lasius #Ameisen #Ameise #Wegeameisen #gelbeWegeameise #Tiere #Insekten #Hautflügler #Natur

Kann mir eine Fachperson sagen, ob das Lasius fugilinosus ist? Das wäre total nett! #entomology #entomologie #ameisen #insekten #insects #ants #lasius #followerpower