Chlorolestes fasciatus, the mountain malachite or mountain sylph is a species of damselfly in the family Synlestidae. It is found in Lesotho, South Africa and Eswatini. Its natural habitat is montane streams.
It is 39–54 mm long with a wingspan of 49–64 mm. Males and females are similar; the thorax and abdomen are metallic-green aging to coppery brown. The thorax has contrasting yellow antehumeral stripes; these are more narrow than those of the similar Forest Malachite. Most mature males have opalescent and blackish wing bands.[1]