Hi, last week I was sitting on a bench on the north side of the walking track that goes around the big fountains in the Hong Kong Zoological Gardens. Was only slightly aware of it at the time, but I was being bitten by some bugs - about 20-30 bites on each leg from the ankle up the calves. Looks smaller than a mosquito bite, up to half a centimetre in width and with a bit of a raised white area in the middle. I'm told it's some kind of small bug, but the person didn't know the name. Wondering if someone can tell me what kind of bug it might be. Thanks!