Kauaʻi record · KCA-IA-00155
Aphis eugeniae
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About Aphis eugeniae
Aphis eugeniae is a member of Aphididae in the order Hemiptera. Its recorded origin status on Kauaʻi is introduced.
Aphis eugeniae is an introduced aphid documented from Kauaʻi. It has a relatively narrow host range compared with many pest aphids and is particularly associated with Euphorbia and Glochidion; Hawaiian material has also been found on hosts shared with Aphis spiraecola. No plant-virus transmission has been established for this species in the principal identification source used here.
Kauaʻi occurrence evidence: Matsunaga, Howarth & Kumashiro (2019) Table 1 includes Kauaʻi island code 'Ka'; first-detection year shown as 1994; reported island distribution: Ka, Oa.
The cited occurrence evidence does not by itself establish current abundance or population trend on Kauaʻi.
Life cycle
Nymphs and winged/wingless adults; aphid populations can multiply rapidly by live-bearing parthenogenetic females. Kauaʻi seasonal and sexual stages are not resolved.
Habitat
Foliage and young growth of suitable host plants in gardens, disturbed vegetation, and other landscapes.
Food and ecological role
Phloem sap; especially associated with Euphorbia and Glochidion among a limited set of plant families.
Reproduction
Primarily rapid clonal reproduction during favorable conditions; local seasonal cycle requires Kauaʻi observation.
Movement
Winged females disperse to new hosts; nursery and landscape plants can move colonies.
Ecosystem role
Introduced sap feeder and honeydew producer.
Threats and impacts
Usually a localized plant-feeding issue; no virus-vector role is documented in the AphID account.
Monitoring
Record host identity, especially Euphorbia/Glochidion, and distinguish from co-occurring A. spiraecola.
Names and classification
- Scientific name
- Aphis eugeniae
- Family
- Aphididae
- Order
- Hemiptera
- Record type
- species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Present
- Origin
- Introduced
- Conservation status
- Not assessed
Process and seasonal context
- Seasonal description
- Aphis eugeniae is a member of Aphididae in the order Hemiptera. Its recorded origin status on Kauaʻi is introduced.