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Moth of the Week

White-Lined Sphinx

Hyles lineata

The white-lined sphinx is a part of the family Sphingidae. They are sometimes known as the hummingbird moth because of their size and how they hover over flowers for nectar. The were first described in 1775 by Johan Christian Fabricius as Sphinx lineata.

Description The forewings are dark brown with tan stripe cutting across mirrors on both sides. The veins of the forewings are lined in white. The top edge of the forewing or the “costal margin” is outlined in a light brown and the forewing’s side edge or the “outer margin” is lined in gray. The hindwings are black with a pink stripe called the “median band.” The furry body is also dark and light brown with black, pink, and white stripes and spots.

Wingspan Range: ≈5.1 - 7.6 cm (2 -3 in)

Diet and Habitat Caterpillars of this species eat a variety of plants such as: Willow weed (Epilobium), Four o'clock (Mirabilis), Apple (Malus), Evening primrose (Oenothera), Elm (Ulmus), Grape (Vitis), and more. Caterpillars can form large groups when finding food and damage many gardens and crops.

Adult moths drink the nectar from various flowers such as: Columbines, Larkspurs, Four o'clock (Mirabilis), Petunia, Honeysuckle, Moonvine, and more. The type of flower an adult feeds from depends on the visibility during certain times of the day. At night they will feed from white flowers because they are easier to see in the dark. Durning the day, they will feed on brighter flowers.

This moth has a large range spanning from Southern Canada down to Central America, going through Mexico and most of the United States. They are found occasionally in the West Indies and on even rarer occasions in Eurasia and Africa. They live in habitats such as deserts, gardens, suburbs, and the Mountains of Colorado. However their population varies in many places.

Mating This moth has two generations per year with more in warmer climates. Eggs are laid in the spring on the host plants. A female can lay hundreds of eggs, which overwinter as larvae and emerge in February to November. This is also when they begin eating.

Predators This moth prefers to fly at night but can be seen during the day. It is preyed on by common enemies of moths: birds and bats.

Fun Fact Caterpillars were, and still are in some places, eaten by Native Americans. They were skewered, roasted, and dried to store/ground. When compared to hamburger meat, the larvae have almost as much fat but 1/3 less saturated fat and more energy in calories, protein, carbohydrate, riboflavin, and niacin.

(Source: Wikipedia, Moth Identification)