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Species Syritta pipiens

Male Syritta? - Syritta pipiens - male Yellow Spider Attacks Fly - Syritta pipiens Is this fly Syritta? - Syritta pipiens - male Syrphid - Syritta pipiens thin flies with yellow patterns on abdomen - Syritta pipiens - male - female Syritta pipiens Syritta pipiens? - Syritta pipiens
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Family Syrphidae (Syrphid Flies)
Subfamily Eristalinae
Tribe Milesiini
Subtribe Tropidiina
Genus Syritta
Species pipiens (Syritta pipiens)
Other Common Names
Thick-legged hoverfly
Explanation of Names
Syritta pipiens (Linnaeus 1758)
Size
6.5-9.5 mm(1)
Identification
apical third of metafemur in both sexes with a row of spines along the ventral edge (photo); another good field mark is the pair of pale wedge-shaped spots on anterior margin of thorax behind the head.
Male: metafemur strongly thickened, but hardly bent, basally without protuberance; tergite 2-3 with small, pale spots. Female: Ocellar triangle black or bluish, metallic shining; thoracic dorsum dusted along side margin; tergite 4: side and hind margins not dusted. [Mark van Veen]
Two small white spots on the thorax directly behind head and the hind tibia, 999 times out of a thousand, has a red mark on the hind tibia and usually on the hind femora too and the hind metatarsus is short stubby and swollen )comment here.
Range
across NA & Eurasia(2)
Habitat
larvae in wet decaying organic matter (manure, compost, silage)(1)
stages of Syritta pipiens have been reported from cow and horse manure, from guinea pig manure and from human excrement. It has also been found in decayed and rotting tulip bulbs and in heaps of vegetable refuse (Hodson, 1931).
Season
mid-Apr to mid-Oct in ON(1)
Food
Larvae feed on decaying Narcissus bulbs; wet manure, compost and silage
Remarks
Introduced from Europe in the 1800s (Martin Hauser's comment).
Internet References