442 Tachinidae. 



grey, blackish above; cheeks greyish white, silvery; jowls grey; 

 frontal stripe velvet reddish black seen from above, from in front 

 it is greyish silvery, Vibrissæ strong, but not dense. Orbits with 

 sparse black hairs, jowls with longer hairs. Occiput grey, rather 

 sparingly with white hairs, wanting above, and with some black 

 hairs behind postocular bristles. Antennæ black, second joint short, 

 third large and long; arista miich shorter than third joint, thickened 

 to near end. Palpi yellowish, darker towards base. Thorax blackish 

 or brownish black, greyish pruinose, with four somewhat broad, but 



Fig. 93 Wing of B. strigata. 



not very distinct dark stripes, the median abbreviated behind; scu- 

 tellum dark. Thorax black-haired. Abdomen black, shining, the three 

 last segments with a narrow, white pruinose, somewhat silvery front 

 band; abdomen has somewhat long, but not erect black hairs; second 

 segment with a pair of marginal bristles, third with a pair of discai 

 and marginal and fourth with a pair of discai and a row of marginal. 

 Legs with long bristles. Wings a little tinged ; veins blackish ; squa- 

 mulæ white with a sKghtly yellow margin. Halteres brownish. 



Female. Similar, but third antennal joint much shorter, not 

 above thrice as long as second, and this latter reddish. 



Length 6 mm. 



B. strigata is rare in Denmark as elsewhere, I know only five 

 specimens; Grib Skov (Kryger); Lolland (L. Jørgensen), in Jutland 

 at Sønderborg (Wiistenei), on Bornholm (Weis), and one specimen 

 from earher time without particular locality; the sole dates of capture 

 are ^^U — ^'^U; it is an exclusive spring-species. The specimen from 

 Bornholm is labelled as bred from Notodonta dromedarius\ hitherto 

 no host was recorded. 



Geographical distribution: — Europe; towards the north to 

 middle Sweden, and in Finland. 



