Little Known Pollinators

by Sharon LaPlante

The pollinators that live in our native plant communities and around our homes are as important (if not more important) as the black bear or the gopher tortoise. Without these insects to pollinate our native plants the black bear and tortoise would have nothing to eat because the saw palmetto and the gopher apple would go without producing any fruit and eventually die off. Insect pollinators include bees, wasps, butterflies, moths, beetles & flies.

Bee flies (Bombyliidae family)

The large bee fly (Bombylius spp.) looks like a furry mosquito on steroids. Average size is 1/2 inch in length. The adult frequents fields and open meadows in search of nectar. Larva are parasitic on solitary bees. The female follows a solitary bee to her nest, waits for the bee to leave, then lays a single egg in the tunnel.

A progressive bee fly (Exoprosopa spp.) looks like a big furry fly. Average size is 1/2 inch in length. The adult drinks nectar. Preferred habitat is meadows, fields, and bare ground. The larva are parasitic and prefer robber fly larvae, but also prey on bees, wasps, and ants.

Hover flies (Syrphidae family)

The drone fly (Eristalis tenax) resembles a honey bee, however, there is no waist between the thorax

and abdomen. Average size is 5/8 inch in length. Preferred habitat is meadows and fields. Adults feed on nectar and pollen. Larva feed on organic matter. The eggs are laid in crevices near stagnant water.

The American hover fly (Metasyrphus americanus) is brown with yellow cross bands. Average size is 3/8 inch in length. The adults drink nectar and the larva prey on aphids and scale insects. Preferred habitat is meadows and fields. Eggs are laid on aphid infested foliage. Larva are pale gray and sluglike and pupate in leaf litter.

Horse and deer flies (Tabanidae family)

The Deer fly (Chrysops spp.) is a stout broad headed fly. Average size is 5/8 inch in length. The male drinks nectar, and the female sucks blood from mammals. Preferred habitat is woodlands, meadows and roadsides near water. Eggs are laid on plant material just above the water. Larva feed on aquatic insects and pupate in the mud.

The American horse fly (Tabanus americanus) is a huge fly with an average size of 1 1/8 inch in length. The male eats pollen and drinks nectar, and the female sucks blood from mammals. Preferred habitat is swamps, marshes and ponds. Eggs are laid on plant material overhanging fresh water. Larva feed on aquatic insects.

Vespid wasps (Vespidae family)

The paper wasp (Polistes spp.) is a slender hornet like wasp. Average size is 1 inch in length. The adults drink nectar and the juice from rotting fruit. Preferred habitat is meadows, fields and gardens. The larva feed on insects that are pre-chewed by the adults. Paper like structures are built to house the larva. Paper wasps are much more tolerant of disturbances than yellow jackets or hornets.

The yellow jacket (Vespulas spp.) has a stout body with black and yellow stripes. Average size is 5/8 inch in length. Adults drink nectar. The larva feed on insects pre-chewed by the adults. Preferred habitat is meadows and forest edges. Nests are built underground, or in stumps, or fallen logs. Yellow jackets sting repeatedly with little provocation.

The bald faced hornet (Vespuila maculata) has black and white patterns. Average size is 3/4 inch in length. Adults drink nectar, fruit juices, and possibly eat other insects. Larva feed on insects that are pre-chewed by the adults. Preferred habitat is meadows, forest edges and lawns. Nests are large, paper like, pendulous structures suspended from tree branches. Bald faced hornets will sting repeatedly if their nest is disturbed.

Sphecid wasps (Sphecidae family)

The Florida hunting wasp (Palmodes dimidiatus) has an average size of 7/8 inch in length. Adults drink nectar and the larva feed on camel crickets and long horned grasshoppers. Preferred habitat is fields and woods. The female excavates a short burrow in the earth and places an anesthetized victim in the burrow with a single egg, and then seals the entrance.

The cicada killer (Sphecius speciosus) has an average size of 1 5/8 inches in length. Adults drink nectar and larva feed on cicadas. Preferred habitat is forest edges and city parks. Burrows are dug in the soil to house two to three egg cells. Cicadas are placed in each cell to feed the larva.

Bees (Apoidea family)

The virescent green metallic bee (Agapostemon virescens) is a small, 3/8 inch in length, shiny green bee. Adults drink nectar and larva feed on nectar and pollen. Preferred habitat is meadows and gardens with sandy soil. The colony's nest is built in bare soil, or vertical banks.

The carpenter bee (Xylocopa spp.) closely resembles a bumble bee. Average size is 1 inch in length. Adults drink nectar and the larva feed on nectar and pollen. Preferred habitat is forests and adjacent meadows. The female chews a tunnel in dry wood and places eggs in partitions that she has constructed with cemented wood chips.

The bumble bee (Bombus spp.) is a large hairy bee with an average size of 7/8 inch in length. Adults drink nectar and eats honey. Preferred habitat is forests, roadsides and open areas. The colony is housed in a nest built underground, and has a social structure similar to the honey bee.

Long horned beetles (Cerambycidae family)

The notch-tipped flower longhorn (Typocerus sinuatus) is an orange beetle with long antennae. Adults drink nectar and eat pollen. Average size is 1/2 in length. Preferred habitat is forest and clearings. Larva feed on decaying wood and tunnel inside to pupate.

The elder borer (Desmocerus palliatus) is a bright orange and black beetle with an average size of 1 inch in length. The adults feed on pollen. Preferred habitat is moist forests and stream edges. Larva feed on elderberry roots. Eggs are laid on the elderberry stems and the larva burrow into the stems, progress to the roots and pupate in the soil.

Here are some things that you can do to ensure that your property has plenty of pollinators:

*Don't use pesticides!

*Learn to like the bugs! Read your field guides and get to know the insects.

*Plant native plants that provide nectar and pollen.

*Allow a portion of your property to be 'wild'. Ground nesting insects will appreciate the sanctuary.

*Provide stumps or blocks of wood for insects to nest in.

Flowers that are pollinated by large bees:

Flowers that are pollinated by small bees:

Agalinis purpurea (False foxglove)

Asclepias tuberosa (Butterfly milkweed)

Argemone albiflora (Prickly poppy)

Cassia chapmanii (Cassia)

Clematis crispa (Leather flower)

Dyschoriste angusta (Dwarf twinflower)

Dicerandra linearifolia (Dicerandra)

Galactia pinetorium (Milk pea)

Kostelezkya virginica (Marsh mallow)

Jacquemontia curtisii (Pineland morning glory)

Pontederia cordata (Pickerel weed)

Phyla nodiflora (Frog fruit)

Sagittaria lancifolia (Arrowhead)

Serenoa repens (Saw palmetto)

 

Flowers that are pollinated by wasps:

Flowers that are pollinated by beetles:

Bumelia tenax (Tough bumelia)

Asimina spp. (Pawpaw)

Ilex vomitoria (Yaupon holly)

Cephalanthus occidentalis (Button bush)

Monarda punctata (Dotted horsemint)

Clethra alnifolia (Sweet pepperbush)

Prunus serotina (Black cherry)

Rhus copallina (Winged sumac)

Viburnum obovata (Walter's viburnum)

Solidago spp (Goldenrod)


 The Audubon Society Field Guide to North American Insects and Spiders. Knopf: New York, NY.

 

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