Minyobates
This is the smallest genus in the poison arrow frog family.  Being mostly terrestrial, they spend most of their time in the rainforest litter searching for food.  Their diet consists of invertebrates small enough to fit into their tiny mouths.  As such, mostly mites and ants have been found in their stomachs.
They live mostly in the rainforests of South America with Minyobates minutus and M. fulguritus also being found on the pacific coast of Panamá and western Colombia.  Minyobates are very similar to the 'quinquevittatus' frogs from the Dendrobates genus, being small (under 20 mm) and with the similar breeding habits.
Minyobates raise their larvae in the funnels of bromeliads, the difference though is that, being aboreal, the quinquevittatus group lay their eggs high up in the rainforest trees.  Minyobates, on the other hand, have been found to lay their eggs in bromeliad funnels on the ground.  However, although they are mainly terrestrial they have been seen 3 meters above the ground.  It would seem, therefore, that as a genus Minyobates are not afraid to climb.
Minyobates have small clutches, two being the average size.  It's thought that both adults and larvae feed on mosquitoes in the wild, so perhaps feeding them mosquitoes could be the key to raising healthy captive-bred animals.  However, there seem to be very few in captivity.  M. minutus is seen on occasion but, as it's not very colourful and very small (12-15.5mm) it's not too popular.
Three species of Minyobates were found to inhabit the same area at the summit of the Alto del Buey in Colombia.  These comprised MM. altobueynesis, minutus, and fulguritus.  The area was described as a cool, misty environment where secondary growths of ferns and grasses were encountered.  These, it was believed, resulted from clearings of native rainforest for an aluminium summit marker, with further clearings of native rainforests being just a matter of time.  These beautiful gems will may be soon to disappear from the wild and it will be down to hobbyists and zoos to keep them from extinction.
Jamie George