( Allograpta sp. )



2016-0612-01100112-DIP02401-Allograpta_sp[2041h45s,F,A,plant-foliage]{PSpevack}-G.jpg

PHOTO COMMENT

IDENTIFICATION
Identification:Allograpta sp.
(Osten-Sacken ,1875 )
Life Stage:(A) adult

PHYLOGENY

Phylum:Arthropoda
Class:Insecta
Superorder:Holometabola
Order:Diptera
Suborder:Brachycera
Family:Syrphidae
Subfamily:Syrphinae
Tribe:Syrphini
Genus:Allograpta
Taxon Code:DIP02401

LOCATION DETAILS
Location Name
Gardens at Lake Merritt, Lakeside Park, 666 Bellevue, Oakland
County:Alameda County
ECI Site#:CA01100110

RECOGNITION
Description
This genus is easily recognized due to the distinct longitudinal striped patterning of the apical abdominal tergites. In California species the fourth abdominal tergite has two pale oblique stripes. A. Obliqua has two central parallel yellow stripes bordered by a pair of oblique yellow maculae on both the 4th and 5th tergites. In A. obliqua, males have a pale crescent-shaped band on third abdominal tergite, whereas in female A. exotica the band is only slightly curved, and is flattened along its base.
Diversity
3 Species in America north of Mexico.
Child Taxa
Two species in California. A. exotica (Widemann, 1870 - North Carolina west to Oregon and south to Argentina. A. obliqua (Say, 1823 - Quebec west to Washington, and south to Argentina).
Similar Taxa
Other members of the Syrphinae lack the markings on the 4th abdominal tergite.

BIOLOGY
Food
California larvae prey on aphids, but some exotic species are herbivorous.
Diversity
3 Species in America north of Mexico.

CREDITS
Photographer
Pamela Spevack
Insect Sciences Museum of California

References
Genus Allograpta. (http://bugguide.net/node/view/289). Accessed May 27, 2016. .
G.F.G. Miranda, A.D. Young, M.M. Locke, S.A. Marshall1, J.H. Skevington, F.C. Thompson. Key to the Genera of Nearctic Syrphidae. CJAI 23 August 23, 2013. doi:10.3752/cjai.2013.23


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