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Description
This Diacamma sp. ant was pretty still.. resting on a leaf with a larva. This gave me ample time to try some back light
Taken at night in Singapore forest.

Quote from www.antwiki.org/wiki/Diacamma
Diacamma is a moderately sized genus which ranges from India to Australia. It is notable for its reproduction by gamergates and control of reproduction by nestmate mutilation.

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.

The range of Diacamma extends from India east to Japan, and from southern China to northeast Australia (Emery, 1911; Wheeler & Chapman, 1922; Suwabe et al., 2007).

Description
This Diacamma sp. ant was pretty still.. resting on a leaf with a larva. This gave me ample time to try some back light
Taken at night in Singapore forest.

Quote from www.antwiki.org/wiki/Diacamma
Diacamma is a moderately sized genus which ranges from India to Australia. It is notable for its reproduction by gamergates and control of reproduction by nestmate mutilation.

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.

The range of Diacamma extends from India east to Japan, and from southern China to northeast Australia (Emery, 1911; Wheeler & Chapman, 1922; Suwabe et al., 2007).