Elytroleptus floridanus
(LeConte, 1862)
Elytroleptus floridanus is a in the , described by John Lawrence LeConte in 1862. It is the only species in the Elytroleptus that extends into the northeastern and southeastern United States, while the genus is otherwise distributed throughout the southwestern United States, Mexico, and Central America. The species is a documented Batesian mimic of (family Lycidae), a trait shared with several . A 2022 Oklahoma specimen represented a significant northwestern range extension of approximately 300 miles from previously known eastern records.
Pronunciation
How to pronounce Elytroleptus floridanus: //ˌɛ.lɪˈtrɒl.əp.təs ˌflɔːr.ɪˈdeɪ.nəs//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Belongs to the Elytroleptus, members of which exhibit —black with red or orange markings, soft-bodied appearance, and somewhat flattened form compared to typical . Distinguished from other Elytroleptus by geographic distribution: the only species occurring in the eastern United States. Specific diagnostic characters require examination of mouthparts and ; see Grzymala & Miller (2013) for species-level .
Habitat
Collected from oak-dominated including Quercus havardii (shinnery oak) stands in Oklahoma. Associated with flowering vegetation in sandhill woodland and wet sand forest habitats in Florida, where have been sought on flowers of Ilex cassine (dahoon holly).
Distribution
Northeastern and southeastern United States. Documented from Florida and historically from eastern Oklahoma near the Arkansas border. A 2022 record from northwestern Oklahoma (Ellis County) extends the known range approximately 300 miles west of previous records.
Seasonality
active in May in Oklahoma; sought in Florida during March fieldwork. Seasonal otherwise poorly documented.
Host Associations
- Quercus havardii - collected_frombeaten from shinnery oak in Oklahoma
- Ilex cassine - associated_with sought on flowers in Florida
Behavior
have been observed flying to flowers and landing on beating sheets. Not skittish compared to typical , possibly due to reliance on for avoidance.
Ecological Role
Documented Batesian mimic of ( Lycidae), which are chemically protected and distasteful to . The relationship is considered mutualistic for the model (lycid) and for the mimic (Elytroleptus).
Human Relevance
Of interest to and natural historians due to its rarity, restricted distribution, and system. The 2022 Oklahoma specimen represented a noteworthy range extension for the .
Similar Taxa
- Lycidae (lycid beetles)Elytroleptus floridanus is a documented Batesian mimic of ; resemble lycids in coloration (black with red/orange markings), body shape, and soft texture, but differ in antennal structure and can be distinguished by examination.
- Other Elytroleptus speciesAll share and similar general appearance; E. floridanus is geographically isolated from southwestern , being the only eastern in the .
More Details
Range extension significance
The 2022 collection in northwestern Oklahoma represented the westernmost documented record for the and a range extension of approximately 300 miles from the nearest previously known locality in eastern Oklahoma.
Mimicry system
While some (E. apicalis, E. ignitus, E. limpianus) are documented as on their models, this has not been specifically recorded for E. floridanus.