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Species Lejops bilinearis

syrphid fly, genus Anasimyia - Lejops bilinearis - male Syrphid - Lejops bilinearis unknown syrphid - Lejops bilinearis Syrphid Fly - Lejops bilinearis Syrphid Fly - Lejops bilinearis Syrphid Fly - Lejops bilinearis Syrphid Fly - Lejops bilinearis Eristalinae? - Lejops bilinearis
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 Eristalini
Subtribe Helophilina
Genus Lejops
No Taxon (subgenus Anasimyia)
Species bilinearis (Lejops bilinearis)
Synonyms and other taxonomic changes
Williston 1886 Helophilus bilinearis; Anasimyia bilinearis – used by Skevington.
“The European species of this genus [Anasimyia] were revised by Claussen & Torp (1980)... Various authors, e.g. Peck (1988), van der Goot (1981), treat Anasimyia as a subgenus of Helophilus. Some include these species in Lejops.” (Speight, 2011).
Explanation of Names
Lejops bilinearis (Williston 1887)
Size
8 to 11 mm long
Identification
Abdomen: Male black with white triangle at each side of segment 1, tip expanding at base of segment 2. Some faint greyish marks on other segments, or not.
Female same as male on 1 and 2. Segments 3 and 4 have broken stripes not reaching side edges. Segment 4 has stripe across lower margin, raised and pointed at center.
Thorax: Black. Male has two thin stripes down thorax, female has 4 wide stripes. Thorax side edges with yellowish-tan hair. Scutellum reddish-yellow, sometimes partly outlined with black.
Habitat
Near or in ponds, swamps, bogs, creeks.
Season
April to June
Remarks
Types:
Holotype as Helophilus bilinearis male by Williston, 1886. Type Locality: Colorado. In the United States National Museum, Smithsonian, Washington, D.C.
Print References
Bulletin of the United States National Museum, 1886, Vol. 31 by Williston, pp. 295-296.
The Canadian Entomologist, 1922, Vol. 54 by Curran, pg. 95.
Transactions of the Wisconsin Academy of Sciences, Arts and Letters, 1926, Vol. 22 by Curran & Fluke, pp. 254-255.
U.S. Dept Agriculture Catalog of the Diptera of America North of Mexico, 1965, Handbook #276 by Stone et al., pg. 618.