. Fig. 20. Wing of L. gilva. Female. With exception of the genital differences quite agreeing with the male. Length 15—18 mm. L. gilva is not rare in Denmark and has been found in not few localities; Fuglevad, Geel Skov, Ruderhegn, Grib Skov, Tisvilde, Bromme at Sor0; on Funen at Faaborg and in Jutland at Silkeborg and at Hald near Viborg. My dates are ^/t—^/g. It occurs in woods in districts with pine-trees, especially on localities with high-stemmed trees, and it is here found sitting on the stems watching for prey. During a great invasion of Tomicus tijpographus in Grib Skov in 1900 the spe
. Fig. 20. Wing of L. gilva. Female. With exception of the genital differences quite agreeing with the male. Length 15—18 mm. L. gilva is not rare in Denmark and has been found in not few localities; Fuglevad, Geel Skov, Ruderhegn, Grib Skov, Tisvilde, Bromme at Sor0; on Funen at Faaborg and in Jutland at Silkeborg and at Hald near Viborg. My dates are ^/t—^/g. It occurs in woods in districts with pine-trees, especially on localities with high-stemmed trees, and it is here found sitting on the stems watching for prey. During a great invasion of Tomicus tijpographus in Grib Skov in 1900 the species was very common while it is otherwise somewhat rare there; it was sitting on the stems in great numbers, feeding on the typographs. The larva has been taken in Ruderhegn on ^-U under bark of fir and larvae and pupae in Geel Skov in a stub of fir on ^/s. Geographical distribution: — Northern and middle Europe; towards the north to northern Scandinavia; it is not found in Britain. It occurs also in North America in Canada. 3. L. marginata L. 1761. Linn. Fn. Suec. 1913 (Asilus). — 1842. Zett. Dipt. Scand. I, 163,6 et 1849. VIII, 2976,6. — 1847. Low, Linn. Entom. II. 556, 12. — 1862. Schin. F. A. I, 140. — 1903. Kat. palaarkl. Dipt. II, 135. — 1849. Zett. Dipt. Scand. VIII, 2976, 5—6. Male. Epistomal callus black; face above the callus with white or yellowish hairs which are depressed and directed downwards, so that they cover the upper part of the callus; the face is greyish just below the antennae. Epistomal beard black; above the antennae and on the vertex there are black hairs. Proboscis black with long, blackish hairs at the base and short, yellow hairs at the apex; palpi black and black haired. Occiput black, at the eye-margins greyish pruinose; the hairs black above, yellow below. Antennae black with black hairs on the 4*
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
