Choose the species which most closely fits your specimen. The different species of emerald damselflies are very similar. Click on an image for more information. Emerald Damselfly Common and widespread females: rounded mark on S1 (pictured) males: Anal appendages all dark. Inner anal appendages are straight. Wingspots pale in immature adults and dark in mature adults Southern Emerald Damselfly Rare, largely in south-east Bi-coloured wing spots Male: pale outer anal appendages with dark tip. Inner appendages are out-curved. Scarce Emerald Damselfly Rare, south-east female: square marks on S1 male: All dark anal appendages. Inner anal appendages are incurved. Willow Emerald Damselfly Rare, largely in south-east Male: Outer anal appendages pale with a dark tip. Inner appendages are very short. Mature adults with pale wing spots.