Kauaʻi record · KCA-IA-00639
Cone-headed Katydid
Euconocephalus nasutus
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About Cone-headed Katydid
Cone-headed Katydid (Euconocephalus nasutus) is a member of Tettigoniidae in the order Orthoptera. Its recorded origin status on Kauaʻi is introduced / adventive.
Cone-headed Katydid (Euconocephalus nasutus) is documented from Kauaʻi. Katydids develop through incomplete metamorphosis. Hawaiian Banza are endemic katydids with species-specific body form, coloration, habitat use, and acoustic signals. On Kauaʻi, observations are most useful when they record calling song, plant/substrate, elevation/locality, sex, nymph/adult stage, and behavior. Where island-specific host, prey, breeding-site, abundance, or seasonal information is not yet firmly documented, those details should remain tied to direct specimens and field observations rather than inferred from populations elsewhere.
Euconocephalus nasutus is an introduced cone-headed katydid documented on Kauaʻi. Adults are long-winged and extremely vocal; nymphs resemble smaller wingless adults.
Kauaʻi occurrence evidence: The HoKua Kauaʻi invertebrate survey records Euconocephalus nasutus as adventive; ITIS and Orthoptera Species File recognize the current species name.
The cited occurrence evidence does not by itself establish current abundance or population trend on Kauaʻi.
Life cycle
Egg; nymphal instars; adult; no pupa.
Habitat
Native shrubs, trees, understory vegetation, and forest edges depending on species.
Food and ecological role
Plant material and/or small arthropods depending on species; exact diet requires species-level evidence.
Reproduction
Females deposit eggs into plant or other suitable substrate; males often produce species-specific calling songs.
Movement
Adults and nymphs climb and jump; wing development and flight ability vary by species.
Ecosystem role
Herbivore/omnivore and prey component of native terrestrial food webs.
Threats and impacts
Narrow endemic species may be affected by habitat loss, invasive predators, ants, altered vegetation, and climate change.
Monitoring
Record calling song, plant/substrate, elevation/locality, sex, nymph/adult stage, and behavior.
Names and classification
- Scientific name
- Euconocephalus nasutus
- Common names
- Cone-headed Katydid
- Family
- Tettigoniidae
- Order
- Orthoptera
- Record type
- species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Present
- Origin
- Introduced / adventive
- Conservation status
- Not assessed
Process and seasonal context
- Seasonal description
- Cone-headed Katydid (Euconocephalus nasutus) is a member of Tettigoniidae in the order Orthoptera. Its recorded origin status on Kauaʻi is introduced / adventive.