Tanaecia munda. Could it still be extant in Singapore?
The identification of the three Tanacia, pelea, munda and palguna can be very difficult in fieldshots.
Both T. pelea and munda have forms in which the HW can be brown or strongly whitened.
The seperation of T. pelea is not based on its appearance but that the 3rd segment of the palpi are long and needle-like.
This only holds true in P. Malaysia as in other places eg Java, T pelea have the palpi 3rd segments short.
The observation. https://www.inaturalist.org/observations/333136831
This female looks to be a whiter, T. pelea but zooming in at the head end only the bulging palpi 2nd segments can be seen clearly, suggesting the 3rd segments to be rather short.