Allograpta radiata
(Bigot, 1857)
Y-shaped Streaktail
Allograpta radiata is a of syrphid fly ( Syrphidae), commonly known as the Y-shaped Streaktail. Like other members of the Allograpta, it is a small flower fly that likely contributes to pollination as an and may have predatory larvae. The species has been recorded in Hawaii and the United States, though specific ecological details remain limited in published sources.
Pronunciation
How to pronounce Allograpta radiata: /ˌæloʊˈɡræptə ˌreɪdiˈeɪtə/
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Identification
Members of the Allograpta are small syrphid flies, typically distinguished by abdominal patterning. The "Y-shaped Streaktail" suggests a characteristic Y-shaped marking on the , though this specific pattern has not been explicitly documented for A. radiata in the available sources. have the typical syrphid features: single pair of wings, large that nearly meet in females and fully meet in males, short , and a sponging mouthpart. Differentiation from similar Allograpta would require examination of subtle morphological characters not detailed in the provided sources.
Images
Distribution
Recorded from Hawaii and the continental United States. Distribution records in GBIF indicate presence in these regions, though specific locality details beyond state/territory level are not provided in the available sources.
Similar Taxa
- Other Allograpta speciesMembers of this share similar small size, general body plan, and abdominal patterning. Specific differentiation requires detailed morphological examination.
- Toxomerus speciesSmall syrphid flies with similar overall appearance and flower-visiting . Toxomerus often have distinctive abdominal striping rather than Y-shaped markings.