Xestia c-nigrum
(Linnaeus, 1758)
setaceous Hebrew character, Black-letter Darts, Spotted Cutworm
Xestia c-nigrum is a widespread commonly known as the Hebrew character or Black-letter Darts. The was first described by in 1758 and occurs across the Palearctic and Nearctic realms. are and attracted to light. The , known as spotted , are feeders and have been documented as for certain thread-waisted .
Pronunciation
How to pronounce Xestia c-nigrum: //ˈzɛstiə siːˈnɪɡrʊm//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
The is distinguished from similar Xestia by the sharply defined black mark on the —neither broken nor diffuse at the edges. Xestia triangulum has a more triangular dark mark. Xestia baja shows more variable, often paler markings without the crisp 'C' or 'nun' shape. examination may be required for certain identifications. The resembles other but paired spots are relatively prominent.
Images
Habitat
Found in diverse open including grasslands, meadows, agricultural fields, gardens, and areas. Tolerates disturbed environments. frequent areas with flowering plants for nectar; occur in and soil surface litter.
Distribution
Palearctic: Europe, North Asia, Central Asia, South Asia, China, Japan, Korea. Nearctic: Canada coast to coast, northern United States, western Alaska. or naturally occurring in Atlantic islands (Azores: Corvo, Faial, Flores, Graciosa, Pico).
Seasonality
from late spring through autumn depending on latitude, with peak activity in mid-summer in temperate regions. Multiple per year possible in warmer climates. Overwinters as or .
Diet
are feeding on low-growing herbaceous plants including many agricultural . Documented feeding on various forbs and grasses. take nectar from flowers.
Host Associations
- Ammophila pictipennis - used as by this thread-waisted
Life Cycle
. laid on or near plants. feed nocturnally, hiding in soil by day—typical . occurs in soil . stage variable by region. , attracted to light sources.
Behavior
exhibit classic : feeding at night, curling into C-shape when disturbed, hiding in soil or debris during daylight. are strong fliers and readily come to artificial light. activity pattern in both .
Ecological Role
function as primary consumers in herbaceous . Serve as for various , predatory wasps, and other . contribute to and serve as food for bats and night-flying birds.
Human Relevance
are occasional agricultural pests as , damaging seedlings and young plants by severing stems at soil level. Subject to efforts. used as in and citizen science projects.
Similar Taxa
- Xestia triangulumSimilar size and ground color, but mark is more triangular rather than C-shaped or Hebrew character form
- Xestia bajaPalearctic relative with more variable, often diffuse markings lacking the crisp black mark of X. c-nigrum
- Agrotis spp.Other with similar larval habits; generally lack the distinctive marking
More Details
Nomenclature
The specific epithet 'c-nigrum' refers directly to the black C-shaped mark on the . ' Hebrew character' refers to the bristle-like (setaceous) and the resemblance of the mark to a Hebrew letter.
Taxonomic Status
GBIF and NCBI recognize this as a ; iNaturalist treats it as a , reflecting possible unresolved cryptic diversity or subspecific variation across its broad range.