Feltia subterranea

Fabricius, 1794

granulate cutworm, subterranean dart moth, tawny shoulder, Subterranean Dart

Feltia subterranea is a noctuid whose larvae are subterranean cutworms feeding on plant roots and crowns. The has a broad geographic range spanning North, Central, and South America, as well as Hawaii. have a wingspan of 38–44 mm and are known to pollinate fetterbush lyonia. The larvae are pests of numerous agricultural crops.

Feltia subterranea P1390629a by
xpda. Used under a CC BY-SA 4.0 license.

Feltia subterranea P1640034a by
xpda. Used under a CC BY-SA 4.0 license.

Feltia subterranea (15646725865) by Donald Hobern from Copenhagen, Denmark. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Feltia subterranea: //ˈfɛl.ti.ə ˌsʌb.təˈreɪ.ni.ə//

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Images

Appearance

have a wingspan of 38–44 mm. The forewings are typically brownish-gray with variable patterning. The "tawny shoulder" refers to a distinctive tawny or yellowish-brown patch on the shoulder region of the forewing. The hindwings are paler, usually grayish or whitish. Body coloration varies but is generally dull brown to gray, providing camouflage against soil and debris.

Distribution

Native to and widely distributed across the Americas. In North America, recorded from Massachusetts and New York west to California, throughout the southern United States, and into Mexico. Present in Central America (Honduras, Rica, Panama, Cuba) and South America (Venezuela, Colombia, southeastern Brazil, Uruguay, Chile, the Antilles). Also established in Hawaii.

Diet

Larvae feed on a wide range of plants, including over 61 of economic importance. Specific host plants include agricultural crops; the broad host range contributes to its pest status. feed on nectar and have been observed pollinating fetterbush lyonia.

Host Associations

fetterbush lyonia - pollinated by

Life Cycle

Complete with , larva, pupa, and stages. Larvae are subterranean "cutworms" that feed below ground on roots and plant crowns. Eggs are laid in or on plants; emerging larvae migrate to the soil to complete development. occurs underground.

Behavior

Larvae exhibit subterranean feeding , cutting off plants at or below the soil surface. are and visit flowers for nectar. Females of the ichneumon Ceratogastra ornata have been observed ovipositing into or early instars of Feltia larvae in flower buds, particularly on ragweed (Ambrosia artemisiifolia) and thoroughworts (Eupatorium).

Ecological Role

Larvae function as herbivores and agricultural pests due to their root-feeding damage. serve as for at least one documented plant . The species is a known for , including Ceratogastra ornata, which may provide natural .

Human Relevance

Larvae are significant agricultural pests causing damage to over 61 economically important crop by feeding on roots and crowns. The subterranean habit makes larvae difficult to detect and control. Formerly placed in Agrotis, a group notorious for damage.

Similar Taxa

Agrotis spp.Formerly classified in this ; similar subterranean larvae and require genitalic examination or molecular methods for definitive separation. Many Agrotis share the "cutworm" and similar ecological habits.