Ant-mimicking Jumping Spider

Description:

Salticidae; Myrmarachninae; Myrmarachne sp. nr. nigella This spider is black and very glossy, just like the ants it has evolved to mimick. According to Wikipedia, the males have very long chelicerae. So I can say with confidence that this one is male. The spider in my photos seems to match very well M. nigella Simon, 1901 which is documented present in Philippines (gbif.org), but I have a problem with the white spots on the abdomen. The spots that I can see don't seem to match exactly with the images in gbif.org, but this may be complicated by the fact that my spider has some small white particles sprinkled on its body (see explanation in Habitat). So Myrmarachne sp. nr. nigella is safer until I spot a better specimen.

Habitat:

This strange little spider was spotted crawling around on an unidentified plant very close to a small outbuilding in the grounds of my wife's rice mill. This small building is quite important in the context of this spider's habitat. Its purpose is to catch and store the husks (which the mill separates from the grain) and also small broken particles of rice. All of this waste product is sucked out of the milling machines and blown at high pressure out of the rice mill and into the storage building. Inevitably, some dust and small particles escape and create a small dusty environment around the store. So I think it is important to note that the little spider had hundreds of plants to choose from, just a few feet away, but it seemed to be quite happy being showered with dust and particles on this one plant. It leads me to wonder if the spider was perhaps taking advantage of small prey which may be disorientated in this dusty environment. It might have discovered that this is the plant to visit for a quick easy snack - spider fast food ?