TACHINA. 37 



ending a little above the tip of the wing; subcostal vein much less 

 than one-third of the length ; mediastinal vein ending at a little more 

 than one-third of the length ; radial vein ending at a little beyond three- 

 fourths of the length ; praebracliial vein forming an obtuse and not 

 sharply defined angle at its flexure, almost straight from thence to its 

 tip, which joins the cubital far from tlie tip of the latter ; discal trans- 

 verse vein with two hardly perceptible curves, parted by very much 

 more than its own length from the border, and by more than its length 

 from the flexure of the prsebrachial. Alulae whitish. Abdomen fusiform. 

 Not rare. (E.) 



40. anthracina, Meig. Zw. iv. 289. 90 (1824). Nigra, nitens, 

 alis cinereis, venis cubitali et prabrachiali non conjunctis, alulis albidis, 

 abdomine longi-obconico cinereo-tomentoso marginibus posticis nigris. 

 Long. 3 ; alar. 6 lin. 



Frontalia deep black, widening in front; bristles of the front de- 

 scending along the whole face ; face vertical ; facialia bristly for half 

 the length ; epistoma not prominent ; eyes bare. Antennae not reach- 

 ing the epistoma ; second joint longer than deep ; third linear, rounded 

 at the tip, longer than the second ; fourth and fifth very short ; sixth 

 more than twice the length of the third. Wings grey ; costal vein 

 ending at hardly in front of the tip of the wing ; subcostal vein ending 

 at a little beyond one-third of the length ; mediastinal vein ending at a 

 little before half of the length ; radial vein ending at a little before five- 

 sixths of the length ; praebrachial vein forming a very obtuse angle at 

 the flexure, very slightly curved inward from thence to the tip ; discal 

 transverse vein straight, with the exception of a very slight hinder 

 inward curve, parted by a little less than its length from the flexure of 

 the praebrachial, and by much less from the border. Alula3 whitish. 

 Abdomen long-obconical, with grey tomentum, excepting the hind bor- 

 ders of the segments. 



Rare. In the late Mr. Stephens' s collection. (E.) 



41. interlapsa, n. Nigra, gracilis, alis alulisque nigricantibus, 

 venis cubitali et prcebracUali conjunct^ abdomine subcylindrico. Long. 

 H ; alar. 3 lin. 



Bristles of the front descending to one-third of the face ; face slightly 

 oblique ; facialia beset with bristles for one-third of the length ; epi- 

 stoma slightly prominent ; eyes bare. Antennae not near reaching the 

 epistoma ; third joint not much longer than broad, rounded at the tip, 

 a little longer than the second ; sixth joint four times ? longer than the 

 third. Wings blackish; costal vein ending at very little in front of 

 the tip of the wing ; subcostal vein ending at beyond one-third of the 

 length ; mediastinal vein ending at before half the length ; radial vein 

 ending at a little beyond five-sixths of the length ; prabrachial vein 

 forming an obtuse and not sharply defined angle at its flexure, straight 

 from thence to its tip, joining the cubital at about four-fifths of 



