Is this crematogaster?

[BleedingRaindrops]

I was working on a wood project the other day when this sweet thing came to visit me. I've heard crematogaster have heart shaped gasters. This looks pretty heart shaped. This is the only clear picture I have though. I didn't have a ruler but against my pinkie (if assumed to be 1cm wide) she was about 4-5mm long. I am on Okinawa, Japan.

[xTNxANTMANx]

Yep, that be a species of Crematogaster. Easy to tell with that bum she has lol.

[Fulkol]

damn what a beauty

[Phoenix]

There's More To Identifying Crematogaster Queens, Than A Heart-Shaped Gaster.
For Instance, They Have Two Petiole Nodes Instead Of One.

But Yeah, This Is A Crematogaster Worker.

[Martialis]

There's More To Identifying Crematogaster Queens, Than A Heart-Shaped Gaster.
For Instance, They Have Two Petiole Nodes Instead Of One.

But Yeah, This Is A Crematogaster Worker.

Nope. Crematogaster queens still have that one petiole. There is more to identifying Crematogaster than the gaster, though.

That said, I concur. Crematogaster worker.

[Phoenix]

I'm Now Confused, Even More So Than Before.

[xTNxANTMANx]

I know there is more to it than just the gaster but I you can easily tell this one is a crematogaster . And of course it's not a queen. I think they knew that already

[Batspiderfish]

Crematogaster are from Myrmicinae, and so have two petiole nodes.

[Martialis]

Crematogaster are from Myrmicinae, and so have two petiole nodes.

Wait.. whoops. I'd forgotten they had that stinger. I blame the fact that they use it for a brush rather than its purpose.

[xTNxANTMANx]

I know that I'll probably research this as well but when you guys talk about petiole nodes, would that be the area between mesasoma and gaster? And I'm sure I spelled that wrong (mesasoma). I guess I'm just trying to figure out exactly where y'all are talking about. Like I said I need to do my research and learn the anatomy of an ant.