Disonycha quinquelineata
Florida Five-lined Yellow Disonycha
Disonycha quinquelineata is a flea beetle in the Chrysomelidae, to Florida. It is characterized by five longitudinal dark stripes on a yellow to pale background. The is moderately well-documented with over 400 iNaturalist observations, primarily from peninsular Florida.



Pronunciation
How to pronounce Disonycha quinquelineata: //dɪˈsɒnɪkə ˌkwɪnkwɪˌlaɪˈneɪtə//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
The combination of five dark longitudinal stripes on yellow distinguishes this from other Disonycha in Florida. Disonycha xanthomelaena has a different stripe pattern (often fewer or broken stripes). Disonycha glabrata lacks the distinct five-lined pattern. The overall color pattern is consistent and diagnostic within its range.
Images
Appearance
are small flea beetles, approximately 3-5 mm in length. The are yellow to pale yellowish-green with five distinct longitudinal black or dark brown stripes running from the base to the apex. The and pronotum are typically dark. Hind are enlarged, an for jumping characteristic of Alticinae.
Habitat
Associated with coastal and interior in peninsular Florida. Found in sandy areas, scrub, and open habitats where plants occur. Often observed on vegetation in sunny, open conditions.
Distribution
to Florida, USA. Primarily documented from peninsular Florida, with records extending from the central peninsula to the southern tip. Absent from the western Panhandle based on current observations.
Seasonality
have been observed throughout the year in Florida, with peak activity likely during warmer months. Specific seasonal patterns are not well documented.
Behavior
are active jumpers, using enlarged hind to escape disturbance. Often found on low vegetation. Like other flea beetles, likely feeds on leaf tissue, though specific feeding are not documented.
Human Relevance
No documented economic or agricultural significance. Occasionally encountered by entomologists and naturalists in Florida.
Similar Taxa
- Disonycha xanthomelaenaOverlaps in Florida; distinguished by different elytral stripe pattern (fewer or more irregular stripes)
- Disonycha glabrataOccurs in similar ; lacks the five distinct longitudinal stripes
- Disonycha pensylvanicaBroader distribution including Florida; different color pattern with more variable markings
More Details
Etymology
The specific epithet 'quinquelineata' refers to the five (quinque-) lines (lineata) on the , a directly descriptive name.
Conservation Status
Not formally assessed; appears secure within its limited Florida range based on observation frequency.