(Bembidion testaceum)
Bembidion testaceum (also known as river shingle beetle) is a small,fast-moving water beetle in the Trechinae subfamily that can be found in Austria,Benelux,Bulgaria,Czech Republic,France,Germany,Great Britain,Greece,Hungary,Liechtenstein,Poland,Romania,Slovakia,Spain,Switzerland,Ukraine,and all states of former Yugoslavia.The species is brown coloured and have a length of 4.5–5.5 millimetres (0.18–0.22 in).The distinctive feature of this kind of species is that it has a dark head and pronotum which has a greenish outline.The wing cases are brownish-red and have almost no reddish spots on them..