Managed-pollinator
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Eristalinus
Lagoon Flies
Eristalinus is a genus of hoverflies (family Syrphidae) characterized by distinctive spotted or banded eye patterns in most species. These stout, nimble fliers are distributed across Europe, Africa, Asia, and the Americas, with several species becoming widespread invasives outside their native ranges. The genus has undergone taxonomic revision, with molecular and morphological studies reorganizing former subgenera Eristalodes and Lathyrophthalmus into two primary clades. Species such as E. taeniops and E. aeneus are notable for their rapid global spread and potential as managed pollinators in agricultural systems.
Eristalinus aeneus
Common Lagoon Fly
Eristalinus aeneus is a hoverfly (Syrphidae) with subcosmopolitan distribution, commonly found in freshwater habitats including coastal lagoons, ponds, and slow-moving rivers. Adults are effective pollinators of crops including watermelon and mango, and have been evaluated as managed pollinators in protected agriculture. The species exhibits distinctive patterned eyes with black spots, metallic coloration, and rapid hovering flight. Larvae develop in aquatic or semi-aquatic environments with decaying organic matter, possessing a characteristic extensible breathing siphon.
Osmia lignaria propinqua
Western Blue Orchard Bee, Blue Orchard Bee, BOB
Osmia lignaria propinqua is a solitary, cavity-nesting mason bee native to western North America, commonly known as the Western Blue Orchard Bee or BOB. It is a subspecies of the blue orchard bee and is valued as a highly efficient pollinator of early-blooming fruit trees including almonds, cherries, apples, and plums. Females carry dry pollen on the scopa (hairs) beneath the abdomen rather than on leg baskets, and they forage at lower temperatures and for more hours than honey bees. The species is managed commercially in orchards, where it is often deployed alongside honey bees to improve cross-pollination through its tendency to move between trees rather than forage systematically on single plants.