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Beetles

 

Beetles are considered primitive “mess-and-soil” pollinators that may pollinate as they move from flower to flower consuming nectar, pollen, flower parts, or special food bodies. Because flower-visiting beetles are less active on flowers than are many flies, butterflies, and bees they are thought to be less effective pollinators. Species within the , , , , , , , and families are known to use floral resources. , , and are known to feed on flowers.


Although beetles are the largest order of insects they are not considered as important to pollination in temperate regions as they are in the tropics. However, it is estimated that there are 52 native plant species pollinated by beetles in North America north of Mexico. There are no crops in the U.S. known to be pollinated by beetles except for the native . More research is needed.

Beetle families and genera often visit flowering plants and their larval/adult food (click on the insect names in the table to view images if available):

Family Genus Larval hosts Adult food
Buprestidae  Acer, Salix pollen, nectar
trunks and roots foliage, fungi
Cleridae parasitoid of bees pollen, insects
Cantharidae small invertebrates small invertebrates
Melandryidae conifer fungus conifer fungus
Cerambycidae
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pinus, Picea, Abies, Tsuga Asteraceae, Rosaceae, Apiaceae
Pinus, Picea,Populus, Alnus Asteraceae, Rosaceae,
    Liliaceae, Fabaceae
Pinus, Picea Asteraceae, Apiaceae,
    Onagraceae
Pinus, Picea,Populus, Abies, Salix Asteraceae, Rosaceae,
    Apiaceae, Fabaceae
Pinus, Picea, Abies pine needles and cones
Pinus, Picea, Abies, Psuedotsuga Apiaceae
Pinus, Picea, Populus Abies Apiaceae
Acer, Tsuga, Fraxinus, Asteraceae, Rosaceae,
    Apiaceae, Fabaceae, Rubiaceae
Chrysomelidae
 
 
Epilobium spp. Epilobium spp.
dicotyledons dicotyledons
Abies, Larix, Picea, Pinus Abies, Larix, Picea, Pinus
Coccinellidae Aphidae Aphidae
Meloidae parasitoid of bees and grasshoppers Fabaceae, Asteraceae
Mordellidae fungus pollen, nectar, flower parts