THE LAUXANIIDAE (DIPTERA) OF SOUTHERN QUEBEC AND ADJACENT REGIONS

Extract

Male: Ground color dark brown ; head broader than thorax at humeri; frons opaque, brownish pruinose, especially on the frontal plates, around the ocellar triangle and along the margins of the eyes grayish pruinose in some lights, above the antennal bases narrowly reddish; face retreating, grayish pruinose, parafacials and cheeks with a silvery sheen, the latter about one-third the eye height, two reddish brown lines appear in some lights. dividing the face from the parafacials; two dark brown bars from antennal pits to eyes; oral margin quite noticeably produced, narrowly dull reddish on the rim; clypeus dark brown and prominent; mouthparts dark brown, palpi black; antenna and arista dark brown, the latter nearly bare; occiput gray pruinose, silvery between the paracephalic sutures.