Red Underwing Moth: All You Need to Know – Quick and Comprehensive Guide

The red underwing moth is a fascinating creature to learn about, known for its unique coloration and patterns. Belonging to the genus Catocala, these moths typically have dull tan, brown, or gray forewings with wavy lines that mimic tree bark patterns, while their hindwings boast bright colors such as orange, red, yellow, or pink, complemented by bold dark patterns 1.

In terms of size, red underwing moths differ from species like the rosy maple moth, which is considered the smallest of the silk moths and has a wingspan of up to 2 inches across 2. By understanding and identifying these captivating insects and their characteristics, we can better appreciate the beauty and diversity nature has to offer.

Overview of Red Underwing Moth

Taxonomy and Classification

The Red Underwing Moth belongs to the family Erebidae, which is a part of the larger order of Lepidoptera. This moth species was first described in the Systema Naturae by Carl Linnaeus.

Morphology and Identification

Red Underwing Moths have dull-colored forewings, often mimicking tree bark patterns. The hindwings are their distinctive feature, displaying bright red or pink colors with bold, contrasting black patterns.

Some key characteristics of the Red Underwing Moth include:

• Dull-colored forewings
• Bright red or pink hindwings
• Bold, contrasting patterns

Size and Wingspan

The size and wingspan of Red Underwing Moths can vary, but they typically fall within a certain range. Wingspans can reach up to 60-80 mm (2.4-3.1 inches).

Distribution and Range

These moths are found in various geographical regions, from southern Canada to Texas and eastward to the Atlantic.

In summary, the Red Underwing Moth is a distinctive species within the Erebidae family. Its unique morphology and widespread distribution make it an interesting subject for moth enthusiasts and researchers alike.

Life Cycle and Reproduction

Eggs and Larvae

• Female red underwing moths lay eggs on specific host plants
• Host plants include willow, poplar, and certain fruit trees

Red underwing moths start their life cycle as eggs, which females lay on the leaves of specific host plants. These plants often include willow, poplar, and occasionally, certain fruit trees. After a short period of time, the eggs hatch into small larvae.

Caterpillars and Pupation

• Larvae grow into caterpillars and feed on host plants’ leaves
• Caterpillars pupate in soil or leaf litter

As larvae develop into caterpillars, they feed on the leaves of their host plants. When it is time for pupation, the caterpillars will find a suitable spot in the soil or leaf litter underneath the host plant.

Lifespan and Mating

• Adult moths have a brief lifespan
• Mating occurs soon after emerging from pupation

The adult red underwing moth has a brief lifespan. Upon emerging from pupation, the moths will quickly search for a mate. After mating, the females lay eggs on suitable host plants, and the life cycle continues.

Habitat and Ecological Roles

Habitat Preferences

The Red Underwing Moth (Catocala nupta) typically inhabits deciduous forests and wooded areas. It shows a preference for:

• Willow trees: These are one of the primary habitats for Red Underwing Moths.
• Oak trees: These trees also provide a suitable environment for their survival.

Food Sources and Predators

The primary food sources for Red Underwing Moth caterpillars are:

• Willow leaves
• Oak leaves

Common predators of Red Underwing Moths include:

• Bats
• Birds

Camouflage and Adaptations

Red Underwing Moths possess unique camouflage abilities that help them blend in with their surroundings. Some adaptations include:

• Forewings: Dull tan, brown, or gray color that mimics tree-bark patterns.
• Hindwings: Bright red color with contrasting bold dark patterns that enable them to hide among the leaves of deciduous trees.

Comparison Table: Red Underwing Moth vs. other Catocala Moths

Overall, Red Underwing Moths demonstrate interesting habitat preferences, food sources, and predators, as well as exhibiting unique camouflage and adaptations that allow them to thrive within their environments.

Red Underwing Moth and Related Species

Underwing Moths

Underwing moths are known for their dull-colored forewings and vibrant hindwings. Examples of these moths include:

• Oldwife underwing
• Beloved underwing
• Darling underwing
• Tearful underwing

These moths are masters of camouflage, blending in with tree bark when resting.

Catocala Moths

Catocala moths, commonly named underwing moths, belong to the genus Catocala. Their hindwings are often brightly colored and patterned, such as:

• Red (e.g., Ilia underwing, Catocala ilia)
• Orange
• Yellow
• Pink

Adult Catocala moths feed on nectar or sap, often found in wooded areas from southern Canada to the Atlantic.

Similar and Related Species

Some related species include:

• Precious underwing
• Pink underwing
• Joined underwing
• Marbled underwing

To compare these species, here’s a table:

In summary, red underwing moth and related species share the striking characteristic of contrasting dull forewings and brightly colored hindwings. They can be found across North America, living primarily in wooded areas.

Additional Information

Notable Discoveries and Subspecies

The red underwing moth (Catocala nupta) is part of the genus Catocala, which consists of different underwing moths. These moths are known for their:

• Dull forewing colors
• Brightly colored hindwings (usually red or orange) with dark patterns

Notable species within the genus include:

• Catocala nupta (red underwing)
• Catocala palaeogama (oldwife underwing)
• Catocala ilia (beloved underwing)
• Catocala cara (darling underwing)

These nocturnal moths are predominantly found in Europe, southern Canada, and specific regions in the United States.

Conservation Status

The red underwing moth’s habitat includes:

• Deciduous trees
• Riverbanks
• Aspen and scrub areas

Adult moths feed on nectar and sap, while caterpillars feed on leaves. They appear in August and September throughout Europe, as well as in Scotland and Ireland.

Comparisons between Catocala nupta and Catocala elocata:

Though not considered endangered, the red underwing moth’s conservation status may vary depending on the region it inhabits. It is crucial to protect and maintain their habitats to ensure their survival.