Chironomus (Chaetolabis) atroviridis (Townes)

Tendipes (Chaetolabis) atroviridis Townes, 1945: 114 .

Material examined. Lake Winnipeg light traps: Pine dock, 3 males, 10.vi. & 31.vi. 1969; Grand Rapids Government Wharf, 1 male, 28.vi.1969.

The males from Lake Winnipeg have an AR of 3.58–3.95, 14–16 sensilla chaetica in apical 1/3–1/4 of ta1 of p2 and 9–11 sensilla chaetica in apical 1/4 of ta l of p3.

Distribution. The species was previously known from Massachusetts and Ontario to Idaho and British Columbia, and south to Iowa and Virginia (Townes 1945: 115, Oliver et al. 1990: 42).