404 Tachinidae. 



jowls bluish black. Frontal stripe dark reddish. Ocellar bristles erect 

 and diverging. Orbits and upper part of cheeks with hairs, some of 

 which are more or less developed as bristles; jowls liairy. Occiput 

 bluish black, with pale yellowish hairs and rows of black hairs behind 

 postocular bristles. Eyes brownish-haired. Antennæ black; arista 

 short, thickened to near apex. Palpi black, Thorax bluish æneous, 

 shining, with short, black hairs. Abdomen black or æneous, shining, 

 black-haired; third and fourth segment with one, sometimes two 

 pairs of discai and a pair of marginal bristles. Fifth sternite small, 

 cleft about to base. Genitalia small; hypopygium with bristles behind; 

 upper forceps lancet-like, a little broadened at base, rounded at 

 apex, curved a little inwards; arms of lower forceps elongated trian- 

 gular, slightly curved, rounded at apex, about as long as upper 

 forceps. Legs black. Wings slightly tinged or nearly clear, but yellow 

 at base and a little outwards; veins yellow at base, darker outwards. 

 Squamulæ yellow. Halteres brownish. 



Female. Similar; frons still broader, nearly thrice the breadth 

 of the eye, and frontal stripe more widening above; front tarsi long 

 and dilated, especially the three middle joints. 



Length. About 5 to fully 6 mm. 



L. aenea is not rare in Denmark, though it cannot be termed 

 common; Amager, Ordrup, Charlottenlund, Tisvilde, Sorø, Skelskør 

 and on Lolland in Kældskov; it has several times been taken near 

 the shore; the dates are ^/g — ^^/g. No host seems to be known. 



Geographical distribution: — Europe; towards the north to 

 northern Scandinavia and Lapland. 



Group 2. 



91. Lypha R. D. 



Rather small species of dark, slightly æneous colour, with some 

 pale pruinosity. Head fully as broad as thorax, convex behind and a 

 little puffed out below, a little higher than long. Frons rather narrow 

 in male, broad in female, in male somewhat protruding. Jowls about 

 one third of the height of the eye. In male weak ocellar and strong 

 inner vertical bristles, in female also outer verticals and two orbitals. 

 Postocellar and occipital bristles more or less individualised. Behind 

 postocular bristles rows of black hairs. Frontal bristles descending 

 to middle of cheeks or below, sometimes a little irregular, crossing 



