Flight period: June to September (occasionally May, October and early November)
The bright red males and clear yellow-brown females are attractive. The eyes are brown above and blue below and the wing bases are yellow. The pterostigma is yellow to orange strongly outlined in black.
Male: becomes a deep red with maturity with red veins on the wings, particularly on the leading edges. The frons and the thorax are red-brown.
Female: ochre yellow abdomen with two black lines along each side. The wing veins are yellow at the costa, leading edge and base.
Immature males: coloured as the females but have only a single line along each side of the abdomen.