Systena sexnotata
Fall, 1910
six-spotted flea beetle
Systena sexnotata is a flea beetle in the Chrysomelidae. feed on walnut foliage (Juglandaceae), while larvae feed on roots. The is restricted to Central and Western Texas. Body length ranges from 4.8 to 5.5 millimeters.
Pronunciation
How to pronounce Systena sexnotata: /sɪˈstiː.nə sɛks.noʊˈtɑː.tə/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Distinguished from other Systena by six dark spots on the , corresponding to the species name 'sexnotata' (six-marked). Body length 4.8–5.5 mm. Specific diagnostic features separating it from require examination of genitalia and subtle color pattern differences.
Habitat
Associated with walnut (Juglandaceae) plants. Specific conditions beyond host association have not been documented.
Distribution
Central Texas and Western Texas, United States.
Diet
feed on walnut foliage (Juglandaceae). Larvae feed on roots.
Host Associations
- Juglandaceae - food plant on foliage, larvae on roots
Life Cycle
Larval stage feeds on roots; stage feeds on foliage. Specific developmental timing and details have not been documented.
Ecological Role
Herbivore associated with walnut trees; specific functions beyond herbivory have not been documented.
Similar Taxa
- Other Systena speciesSimilar body form and size; distinguished by elytral spot pattern and genitalia
- Other flea beetles (Alticinae)Shared characteristics including enlarged hind for jumping; distinguished by association and color pattern