Cuckoo bee species 'hiding in plain sight'

By Matt McGrathEnvironment correspondent

12 May 2018

Scientists have discovered 15 new species of cuckoo bees hidden in North American museum collections and in an ancient thesis.

Like their avian counterparts, cuckoo bees lay their eggs in the nests of other bees, usually solitary dwellers.

When the cuckoos hatch they kill off the usurped bees' larva and and survive on stored pollen.

Researchers say that this type of behaviour is common in bees and up to 15% of species are cuckoos.

While there are many different genera, or types, of cuckoo bees, all the new discoveries relate to one genus, Epeolus. The new findings bring to 43 the total of Epeolus species in North America.

These cuckoos are said to look more like wasps than other bees, with a smoother, less fuzzy look. This is because they don't have the body hairs that other bees use to collect pollen for their young, as they rely on the hosts to do that for them.

They also tend not to be seen near flowers, but are often found hovering close to the ground searching for host nests.

Read on  

Five New Species of Cuckoo Bees from the Cape Verde Islands

ScienceDaily (Aug. 30, 2012) — The biota of island archipelagos is of considerable interest to biologists. These isolated areas often act as 'evolutionary laboratories', spawning biological diversity rapidly and permitting many mechanisms to be observed and studied over relatively short periods of time. Such islands are often the places of new discoveries, including the documentation of new species.

The Republic of Cape Verde comprises 10 inhabited islands about 570 kilometers off the coast of West Africa and have been known since at least 1456. Although the bee fauna of the islands was thought to be moderately well known, research by Dr. Jakub Straka of Charles University in Prague and Dr. Michael S. Engel of the University of Kansas have shown that this is not the case. A recent study published in the Open Access journal ZooKeys documents the cuckoo bee fauna of the islands, revealing that their entire fauna of cuckoo bee species is in fact new to science.

These bees, like the more widely known cuckoo birds, invade the nests of other host bee species. While the host is out collecting pollen for its brood, the cuckoo bee female enters the nest and deposits her eggs on the food resource. The cuckoo bee egg hatches and the immature promptly dispatches the host egg, leaving the pollen and nectar reserves for itself.

Continued:  http://www.sciencedaily.com/releases/2012/08/120830105419.htm