Reference articles on history, science, culture and more
Encyclopedia

Macropis

Genus of bees

Image credit is listed at the end of this article.

Macropis is a genus of bees in the family Melittidae. They are very rare and were likely more common in the past. They are associated with yellow loosestrife plants in the genus Lysimachia.

01Description

Macropis species are of moderate size, not exceeding 15 mm. They have a livery predominantly black; males are characterized by conspicuous yellow markings on the head, but the females show morphological adaptations related to their foraging habits of flower oils, posterior tibiae with very developed, covered with a dense velvety hairs. Unlike most Melittidae, the wing has only two submarginal cells.

02Biology

They are solitary bees that dig their nests in the ground. Most species are oligolectic and feed on pollen and floral oils of Lysimachia spp. They make a single generation per year. The males emerge from the ground in spring, just before the females, and await the females in the vicinity of the flowers of the host plant. After mating, the females dig a nest in the ground, ending with one or two rooms in which is collected the pollen, which is placed on the egg. The larvae, feeding on the pollen, develop rapidly, and within 10 days turn into pupae, spending the winter in this stage. Macropis nests are often parasitized by bee cleptoparasites such as Epeoloides.

03Species

Watch videos about MacropisExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article Macropis, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Images, from Wikimedia Commons:

  • Macropis sp 01.jpg by K. Seltmann (seltmann@scs.fsu.edu) and Chantelle Dorsey (chantelle.dorsey@gmail.com), Public domain

Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.