Pyrgotella chagnoni
(Johnson, 1900)
Pyrgotella chagnoni is a of fly in the Pyrgotidae, a group commonly known as pyrgotid flies. The family is characterized by larvae that develop inside scarab beetles. This species was described by Johnson in 1900. Like other members of its , it likely exhibits the distinctive and wing venation typical of Pyrgotidae.
Pronunciation
How to pronounce Pyrgotella chagnoni: /pɪrɡoʊˈtɛlə ˈʃæɡnoʊnaɪ/
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Identification
Identification to level requires examination of genitalia and other fine morphological characters. The Pyrgotella can be distinguished from related genera by features of the structure and wing venation, particularly the arrangement of crossveins and the shape of the head in lateral view. Definitive identification of P. chagnoni specifically relies on comparison with and original description.
Images
Distribution
The original description indicates this is known from North America. Specific locality data from the and subsequent records are not comprehensively summarized in widely accessible sources.
Host Associations
- Scarabaeidae - larval Pyrgotidae are known of scarab beetles; this association is inferred at level and may apply to this
Life Cycle
As with all Pyrgotidae, development is parasitoidal. females deposit on or near scarab beetles. Larvae penetrate the and develop internally, eventually killing the host . Specific details of the for this have not been separately documented.
Behavior
pyrgotid flies are often observed around trees and vegetation where scarab beetles occur. Females pursue host beetles in to oviposit. Whether this exhibits specific behavioral differences from is unknown.
Ecological Role
As a of scarab beetles, this contributes to natural of its . Some scarab beetles in this region are agricultural pests, suggesting potential significance, though this has not been specifically studied for P. chagnoni.
Human Relevance
No direct human relevance has been documented. The Pyrgotidae has been investigated for potential use in of pest scarabs, but this has not been specifically evaluated.
Similar Taxa
- Pyrgota undataSimilar size range and general appearance; distinguished by wing venation details and shape
- Other Pyrgotella speciesRequire examination of male genitalia and other subtle morphological characters for separation
More Details
Taxonomic note
The Pyrgotella was established to accommodate with certain derived features of the and wing venation distinct from the type genus Pyrgota. The specific epithet 'chagnoni' presumably honors a collector or colleague, though the etymology is not explicitly documented in the original description.