Orange-black Ichneumon Wasp

Size 14mm. Hunting wasp found around reed where it was visibly searching for something. It returned to the same place several times, occasionally sitting down on some reed leaf. It was quite aware of my presence and left as soon as I tried to approach. Its abdomen is long, thin and tearshaped. It is often tucked under its body, making it look like it is missing or extremely short. Thorax is pustulose similar to a velvet wasp. Antennae are long, multisegmented, black and orange in colour.