Broad-bodied Sedgesitter

For terminology see Speight key to genera and glossary or Glossary of morphological terminology

Note See "general anatomy" below for diagrams of Syrphid parts(not this species)

Head

The face is lightly dusted gray and features a small, shiny tubercle. The frons is covered with dense, relatively long hairs. The antennae are mostly black, except for the first flagellomere, which is orange below.

Thorax The scutum and scutellum are mostly shining and covered with long white or yellowish hairs. The sides of the thorax have a very slight grey dusting and are also covered with long white or yellowish hairs. Wings Cell c is bare on its basal third to three-quarters. Cell bm is bare except at the tip and along the front half of the rear margin, The knob of the halter is yellow in color. (see figure 3) Abdomen The abdomen is oval. The spots on the segments are a dull orange color and are covered with a strong layer of pollen. The spots on segment 2 are located near the middle of the segment, while the spots on segments 3 and 4 extend to the anterior edge of each segment. (see figure 2). Legs The front femur is orange and features a blackish stripe along with long, fine, dense hairs that are mostly pale. These hairs become slightly shorter toward the apex and are covered by two or three longer, stronger black hairs that have strongly curved ends. …