Species Anasimyia chrysostoma

Eristalis chrysostoma Wiedemann 1830; Lejops relictus Curran & Fluke 1926; Helophilus relictus Skevington 2001; Anasimyia chrysostoma Skevington 2019

Lejops chrysostomus

8 to 10 mm long.

Thorax: Both male and female have 4 wide grey to yellowish-white stripes. Scutellum black, lower margin yellowish to reddish.

Abdomen: Female has thick, greyish-white curved and broken stripes on each segment, lower margin of segments has a narrow white line. Male stripes same as female, but narrower, last half or more of abdomen red.

Mid-May to September

Types:

Holotype as Eristalis chrysostoma female by Wiedemann, 1830. Type Locality: Unknown. Possibly in Naturhistorisches Museum Wien (Vienna) Austria which holds most of his diptera types, including several types by Thomas Say; some parts of his collection were destroyed by fire at the museum in 1848.

Holotype as Lejops relictus male by Curran & Fluke, 1926. Type Locality: Ontario. In the Canadian National Collection, Ottawa, Ontario. Type #2222.

Aussereuropaische Zweiflugelige Insekten, 1830 Vol. 2 by Wiedemann, pg. 174.

Transactions of Wisconsin Academy of Science and Arts, 1926, Vol 22 by Curran and Fluke, pp. 256-259 and 261-263.

Ohio State University, 1953, Thesis Weems Syrphidae, pp. 454 -455.

Insects of North Lambton, 2001 by Skevington, pg. 111.

CNC spreadsheet (.xls) Sept, 2013: Lejops chrysostomus Comment: Holotype of Lejops relictus & Lejops orion.

Field Guide to the Flower Flies of Northeastern North America, 2019 by Skevington et al., pg. 80.