Map Snapshot
113 Records
Status
Fairly common and widespread in Maryland. Flies mostly May to October and visits a wide variety of flowers.
Description
Fairly long and thin. The only other member of its genus in Maryland is the much less common A. exotica. It can be distinguished with care from photos based on a careful examination of the abdominal pattern.
Relationships
Larvae feed on various insects and mites. According to BugGuide, larvae of the Common Oblique Syrphid have been found on over 50 species of aphids.
Seasonality Snapshot
Source: Wikipedia
Allograpta obliqua | |
---|---|
Allograpta obliqua | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Diptera |
Family: | Syrphidae |
Genus: | Allograpta |
Species: | A. obliqua
|
Binomial name | |
Allograpta obliqua (Say, 1823)
| |
Synonyms | |
Allograpta obliqua is a common North American species of hoverfly, commonly known as oblique streaktail. The larvae are important predators of aphids while adults are pollinators.[1]
Description
[edit]Adults are 6–7 mm long, with yellow stripes on the thorax and cross banding on the abdomen with four longitudinal, yellow stripes or spots on the fourth and fifth tergite. The face is yellow and lacks a complete median stripe. Males have holoptic eyes and females have dichoptic eyes.[1]
Eggs are white, oval, and about 0.84 mm in length. Larvae reach 8–9 mm.[1] They are bumpy and slug-like.[2]
Life history
[edit]Adults of A. obliqua occur throughout the year in the southern part of their range. Eggs are laid on surfaces leaves or branches near aphids. Larvae hatch in two to eight days and feed on the aphids.[1]
Distribution
[edit]Found in most of the continental United States, New York State. Quebec in Canada, Bermuda, Mexico, and some parts of the Neotropical Americas, and the West Indies.[1]
References
[edit]- ^ a b c d e H. V. Weems (2008). "A Hover Fly, Allograpta obliqua (Say) (Insecta: Diptera:Syrphidae)" (PDF). DPI Entomology Circular. 106 (1). Gainesville, Florida: Institute of Food and Agricultural Sciences, University of Florida.: 4. Retrieved 2009-01-09.
- ^ Will, Kip; Gross, Joyce; Rubinoff, Daniel; Powell, Jerry A. (2020). Field Guide to California Insects. Oakland, California: University of California Press. pp. 303–304. ISBN 9780520288744.
External links
[edit]- Media related to Allograpta obliqua at Wikimedia Commons