With a greenish-yellow back contrasting with dark blue hind legs and black sides, the blue-legged mantella is a popular frog in the pet trade. Males are a little smaller than females and have an obvious horseshoe-shaped blue spot on the lower throat. Both sexes have a light stripe along the upper lip. Colours can vary between individuals, but the more highly contrasting individuals are most likely to be collected for the pet trade.
The blue-legged mantella is classified as Critically Endangered (CR B2ab(iii,v)) on the IUCN Red List 2004 and is listed on Appendix II of CITES.