"Teneral" Damselfly

I photographed this very confiding damselfly at Coombe Hill Nature Reserve last week\thinking with its muted colouring it must be a female. But checking it out, I realised it’s too blue to be a female blue or azure damselfly, and also the body is too pale. This indicates that it is actually a newishly emerged damselfly. In this case I think it’s a male Blue-tailed Damselfly (Ischnura elegans). These damselflies take a day or two to develop their adult colour.