. Fig. 99. Wing of H. precatoria. dark brown. Stigma black or blackish brown, roundish, the radial vein forming a curve below it; discal and anal cell present, anal vein long but weak. Halteres whitish yellow. Female. Agreeing with the male; the frons very slightly broader. Ovipositor as thick as abdomen, because the eighth segment is long, while the following part is rather small. Length —5 mm. H. precatoria is rare in Denmark; Ordrup Mose (Staeger), Rorvig, and in Jutland at Hald near Viborg (the author); my dates are ^/e—^'/s. It occurs at borders of brooks, especially on somewhat shaded


. Fig. 99. Wing of H. precatoria. dark brown. Stigma black or blackish brown, roundish, the radial vein forming a curve below it; discal and anal cell present, anal vein long but weak. Halteres whitish yellow. Female. Agreeing with the male; the frons very slightly broader. Ovipositor as thick as abdomen, because the eighth segment is long, while the following part is rather small. Length —5 mm. H. precatoria is rare in Denmark; Ordrup Mose (Staeger), Rorvig, and in Jutland at Hald near Viborg (the author); my dates are ^/e—^'/s. It occurs at borders of brooks, especially on somewhat shaded places, under trees; at Hald I took it in company with the two following species. Geographical distribution:— Europe down into Italy; towards the north to middle Sweden, and in Finland. It is also recorded to occur in North America in Canada.


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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera