The next day along the TL212 in Cao Bang I visited a small stream by the road side in a pocket of rice fields and houses. This stream also seems like nothing special, but it had 4-5 males of Atrocalopteryx coomani. This is a relatively widespread, but definitely scarce species. In Pia Oac I found another Matrona basilaris. Clearly the advent of autumn is bringing other species!
|Male Matrona taoi, a beautiful and rare damsel|
|Showing the wing pattern, with lighter outer thirds|
|Scan of male Atrocalopteryx coomani, with also a very interesting wing pattern|
|Which is not visible in the perched insect, apart from the short moments it will flash its wings|