Synonyms and other taxonomic changes
Rhamphidia flavipes, Limnobia prominens, Rhamphidia brevirostris
Head: Head brownish-gray. Palpi and proboscis black. Proboscis a little longer than head.
Antenna: Brown at base, rest of segments lighter brown.
Thorax: Either yellowish or brownish, usually stripes are indistinct.
Wings: Clear with a dark, squarish spot (stigma) along top margin (costa). Wing tip also dark. Halteres pale to slightly brownish.
Legs: Long and pale yellow. Tip of each segment dark. Toes (tips of tarsi) also dark.
Abdomen: Male abdomen narrow, female abdomen wider and may have red mites attached. Segments dark brown with a yellowish ring. Last segment entirely brown. Female has long sharp ovipositor, male has lobed abdomen tip.
Alberta to Nova Scotia, southward to Texas and Florida; also Kansas.
Sunny marshes, slow-moving streams.
May to early September; usually to June in the north.
The larvae found in marsh muck.
Proceedings of the Academy of Natural Sciences of Philadelphia, 1859, Vol. 11, by Osten Sacken, pg. 222.
Smithsonian Miscellaneous Collections, 1869, Vol. 8: Diptera of North America, Part 4, by Osten Sacken, pp. 105 to 106.
The Diptera of North America, 1965 U.S. Dept. Agriculture. pg. 42 and 50.
Memoirs of the Cornell University Agricultural Experiment Station, 1919-20; #19 to 38: pp. 877 to 898.