554 Tachinidae. 



An indistinct or no præsutural intraalar bristle. Abdomen black, 

 somewhat shining, the three last segments with a slightly marked, 

 qnite narrow, white pruinose front band, interrupted in the middle. 

 Abdomen with bristles as in collaris. Genitalia small; below at the 

 end of hypopygium two bimdles of bristles. Legs black, front tibiæ 

 with two posterior bristles. Wings somewhat brownish or blackish 

 tinged, with dark brown or black veins; anal vein reaching less near 

 to the margin than in collaris. Squamulæ dark brownish. H alteres 

 black. 



Female. Similar; frons broader but not as broad as the eye. 

 Inner and oiiter verticals strong, and likewise orbitals. Abdomen 

 ends with a similar plate as in collaris; the foiirth dorsal segment 

 has on the ventral lateral margins a number of short, strong spines. 

 Hind coxæ with some strong, curved spines and trochanters with 

 some short spines below. Squamulæ dirty whitish. 



Length 4 — 5,5 mm. 



D. luctiiosa is rare in Denmark, I know only six speoimens, four 

 males and two females; Skanderborg (the author) and at Silkeborg 

 (Esben-Petersen); the dates are in July. The species is known as 

 parasitic on Acalla maccana and Epiblema sordidana. 



Geographical distribution: — Europe; towards the north to 

 Southern Sweden. 



139. VibPissina Rond. 



Species of medium size and black colour with greyish pruinosity. 

 Head as broad as thorax, convex behind and puffed out below, higher 

 than long. Frons broad and about equal in both sexes, a little pro- 

 truding. Jowls about one half of the height of the eye. In both sexes 

 ocellar and inner vertical bristles, in female also outer vertical and 

 two orbital bristles. Postocellar and occipital bristles small and fine. 

 Behind postocular bristles black hairs. Frontal bristles reaching to 

 end of second antennal joint, two uppermost reclinate in both sexes. 

 Cheeks bare. Vibrissæ ascending to near middle or higher, Eyes 

 very slightly hairy, practically bare. Epistoma retreating, a little 

 reflected below. Proboscis somewhat short; palpi thread-like. Antennæ 

 inserted high above middle of the eye, third joint about four times 

 as long as second; arista with second joint short. Thorax rectangular; 

 three postsutural dorsocentrals and two præ- and three postsutural 

 acrostichals ; a præsutural intraalar bristle. Scutellum with three 



