Dicropaltum mesae
(Tucker, 1907)
Dicropaltum mesae is a of robber fly in the Asilidae, originally described as Tolmerus mesae by Tucker in 1907. It belongs to the Dicropaltum, a group of predatory flies within the Asilinae. The species is documented through limited observation records, with 15 observations on iNaturalist. Robber flies in this genus are aerial that capture other insects in .
Pronunciation
How to pronounce Dicropaltum mesae: //ˌdaɪkroʊˈpæltəm ˈmiːsiː//
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Distribution
Observations of Dicropaltum mesae have been recorded in North America, though specific range boundaries are not well documented. The Dicropaltum is primarily distributed in the Nearctic region.
Diet
As a member of Asilidae, Dicropaltum mesae is a predatory that feeds on other insects captured in . Specific prey records for this species are not documented.
Behavior
Like other Asilidae, Dicropaltum mesae is an aerial that likely perches on exposed surfaces to ambush flying prey. The has been observed in active pursuit of other insects.
Ecological Role
As a predatory robber fly, Dicropaltum mesae functions as an in its , contributing to control of other flying insects.
Similar Taxa
- Dicropaltum sayiCongeneric in the same , sharing similar body plan and predatory habits; distinguished by subtle morphological differences in genitalia and body proportions.
- Other Asilinae genera (e.g., Asilus, Proctacanthus)Similar overall appearance as large, robust robber flies; Dicropaltum typically have distinctive wing venation and facial characteristics that separate them from these .
More Details
Taxonomic History
Dicropaltum mesae was originally described by Tucker in 1907 under the basionym Tolmerus mesae. The was later transferred to the Dicropaltum, which was established to accommodate a distinct lineage of Asilinae with characteristic wing venation and male genitalic features.
Data Limitations
This is poorly represented in entomological collections and literature. The 15 iNaturalist observations represent a significant portion of accessible occurrence data, indicating a need for further field documentation and taxonomic study.