Ant (Diacamma sp.) raiding Jumping Spider Nest

The mother Jumping spider was huge... easily 1.5cm and about the same size as the ant. But surprisingly, she didn't care much.
Mama on a nearby leaf c2.staticflickr.com/6/5707/224…
Taken at night in Singapore forest.

Quote from www.antwiki.org/wiki/Diacamma
Schmidt and Shattuck (2014) - Diacamma workers are highly distinctive and are easily identified by the presence of deep striate sculpturing, deep pits (gemmal pits) on the sides of the mesosoma, and a bispinose petiole. The gemmal pits are autapomorphic, but may be confused with the wing scars of dealate queens in other taxa. Diacamma workers lack the other characters of winged queens, however, such as ocelli and modified thoracic sclerites. The combination of deep striate sculpturing, prominent arolia, bispinose petiole, and laterally-opening metapleural gland orifice (with a posterior U-shaped cuticular lip) also differentiates Diacamma from the queens and workers of any other ponerine genus.