Trichiotinus rufobrunneus
(Casey, 1914)
Florida flower scarab
Trichiotinus rufobrunneus is a of flower to Florida, commonly known as the Florida flower . It belongs to the Trichiotinus, a North endemic group of trichiine scarabs. The species is associated with the flowers of australis (Florida pricklypear cactus), an endemic , and has been observed mating within these flowers. Its distribution is limited to Florida, making it a species of concern due to loss from urban development and agriculture.
Pronunciation
How to pronounce Trichiotinus rufobrunneus: /ˌtraɪˌki.oʊˈtaɪ.nəs ˌru.foʊˈbrʌn.i.əs/
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Identification
Can be distinguished from other Trichiotinus by its limited Florida distribution. The Trichiotinus as a whole is characterized by flower-visiting , and T. rufobrunneus specifically associates with australis flowers. Phylogenetically, it belongs to one of two major clades within the genus, with a more southern distribution pattern compared to the northern clade.
Images
Habitat
Dry oak/pine sandhill woodland with grassy understory; specifically associated with areas where australis (Florida pricklypear cactus) occurs.
Distribution
to Florida, USA. Records are limited to the Florida peninsula.
Seasonality
Active during spring; observed in April in central Florida. Activity appears tied to flowering of australis.
Diet
feed on or associate with flowers of australis (Florida pricklypear cactus). Specific pollen or nectar feeding has been inferred from flower association but not explicitly documented.
Host Associations
- Opuntia australis - flower associationFlorida pricklypear cactus, an ; primary flower for activity
Behavior
have been observed mating within flowers of australis. Flower-visiting is characteristic of the .
Ecological Role
Likely contributes to of australis through flower visitation, though this has not been quantitatively studied.
Human Relevance
Of concern due to limited distribution in Florida and ongoing loss from urban development and widespread agriculture.
Similar Taxa
- Trichiotinus lunulatusSmaller, more widespread found in same ; occurs sympatrically with T. rufobrunneus in Florida
- Trichiotinus texanusTexas flower , another member of same with similar flower-visiting but different geographic range
- Trichiotinus viridansMidwestern , also of concern due to limited distribution from loss