Larva a medium semi-thummi-type, i.e. small lateral projections and well developed ventral tubules. Pecten epipharyngis with some thinner teeth interspersed between the normal teeth.
Cytology: 4 pairs of chromosomes with the thummi-cytocomplex combination AB, CD, EF, G. Arm G with a subterminal nucleolus, a large BR just proximal to it and another BR near other end of chromosome. Other nucleoli on arms B and D.
Arm A:
Arm E: possibly 1 - 3c, 9 - 10a, 8i - a, 3ed, 10b, 5 -
7, 4 - 3f, 10c - 13
Arm F:
Found: Ontario
– (Oliver & Dillon 1990)
Florida – (Townes 1945)
Georgia – (Epler 2001)
Idaho – Coeur d'Alene Lake (Townes 1945)
Iowa – Davenport (Townes 1945)
Massachusetts – Worcester (Townes 1945)
Missouri – Atherton and St. Louis (Townes
1945)
New
Jersey – Atsion, Medford Lakes, Moorestown and Westville
(Townes 1945)
New
York – Buffalo, Canadarago Lake, Canajoharie, Hudson,
Ithaca, Niskayuna, Oneonta, Otsego Lake, and Ringwood, Tompkins Co.
(Townes 1945)
North
Carolina – Raleigh (Townes 1945)
Ohio – Summit Co. (Townes 1945)
Rhode
Island – Westerly (Townes 1945)
South
Carolina – (Caldwell et al. 1997)
Wisconsin – Arboretum, Madison, Dane Co.
Also occurs in Europe (Denmark, England, etc.).
A Holarctic species. Often called Chironomus (Lobochironomus) longipes (Staeger) because of the misapplication of the name dorsalis to a Chironomus (s.s.) species by Edwards (1929). However, Townes (1945) indicated that the terminalia of the Meigen specimen was consistent with the present species rather than a Chironomus (s.s.).