Hummingbird Clearwing Moth - Hemaris thysbe
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Commonly called common clear-wing, hummingbird moth, sphinx colibri. Live adult moths photographed in the wild at Winfield, Illinois, USA
Hummingbird Clearwing Moth
Hemaris thysbe, the Hummingbird Clearwing Moth or Common Clearwing (wingspan 38-50 mm), readily visits flowers by day throughout the eastern half of the U.S. and Canada, where it ranges far to the north, even into the Yukon. It is not difficult to see why many gardeners would mistake an Hemaris thysbe moth for a small hummingbird as it hovers, sipping nectar from flowers through a long feeding tube. The moth hovers briefly, sipping for only a few seconds before darting off to a new flower. Green body "fur" and burgundy wing scales suggest a small ruby throated hummingbird.
Hummingbird Clearwing Moth
Adult sphinx moths are medium to large moths with wingspans ranging from about 1.25 inches to 4.75 inches. The snowberry clearwing is one of the smallest moths in this group, while the five-spotted hawk moth is one of the largest. Its larva is the familiar tomato hornworm. The Carolina sphinx, whose larva is known as the tobacco hornworm, weighs only one to two grams, but it flaps its wings an astonishing 25 to 30 beats per second. Some sphinx moths have been clocked at speeds as high as 30 mph.<

>Sphinx moths are often mistaken for hummingbirds and bumblebees because of their similarities in size, foraging behavior and feeding structures. Many sphinx moths are nocturnal, but several species are diurnal, meaning they are active during the daytime when hummingbirds and bumblebees are also foraging. Adult sphinx moths have a long, straw-like "tongue," called the proboscis, which they keep curled under the head. They use it to suck nectar from the flower. The nectar is rich in sugar, which fuels the energy required for hovering.

The hummingbird clearwing is common in North America.  Its larvae feed on honeysuckle, buckbrush, wild cherry and plum. Adults hover to take nectar at many different flowers, including honeysuckle, beebalm, phlox, lilac and bergamot. All the specimens pictured here are feeding at bergamot.

The snowberry clearwing, a close relative, is nearly as abundant. That bumblebee mimic is yellow with black wings and abdomen. At 1.25 to 2 inches, its wingspan is slightly smaller than that of the hummingbird clearwing. Its larvae feed on honeysuckle, dogbane and buckbrush. Adults eat from many flowers, including thistles, milkweed and lilac. See pictures of the snowberry clearwing moth, a mated pair, HERE.

Hummingbird Clearwing Moth
Sphinx moths, pollinate many species of plants. Moth-pollinated flowers tend to have a strong, sweet scent and are white or pale in color. Gardens planted with these flowers may attract several kinds of sphinx moths, including the hummingbird and bumblebee mimics. These moths rarely come into contact with flowers except for the tip of a carefully-placed foot.
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Order Lepidoptera: Moths. Unlike the butterflies, moths are usually nocturnal. Many moths and their caterpillars are major agricultural pests in large parts of the world. Moths in the family Tineidae are commonly regarded as pests because their larvae eat fabrics, clothes and blankets made from natural fibers such as wool or silk. Moths in the genus Farinalis feed on stored grain, flour, corn meal and other milled grain products.
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