TACHINA. 25 



Frontalia deep black, broad, slightly widening in front; bristles of 

 the front descending to one-fourth of the face ; face vertical ; facialia 

 bristly to one-fourth of tlie length; palpi tawny. Antennae almost 

 reaching the epistoma ; second joint nearly twice longer than deep, red 

 at the tip ; third sublinear, truncated, mostly red on the inner side, very 

 much longer than the second ; fourth and fifth red ; fourth very short ; 

 fifth rather long ; sixth red at the base, bare, stout for rather more than 

 half the length, very much longer than the third. Costal vein ending at 

 some distance in front of the tip of the wing : subcostal vein ending at 

 much beyond one-third of the length ; mediastirial vein ending at much 

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

 sixths of the length ; cubital vein ending near the tip of the costal ; 

 prsebrachial vein forming a very obtuse angle at the flexure, almost 

 straight from thence to the tip ; discal transverse vein with two very 

 slight curves, parted by rather more than half its length from the border 

 and from the flexure of the prsebrachial. 



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



14. arvensis? Meig. Zw. iv. 337. 269 (1824). Nigra, cano- 

 tomentosa, capite albo, thorace nigro-trivittato, facialibus usque ad 

 quartam setosis, alis subhyalinis, alulis subcinereis, abdomine obconico, 

 segmento primo marginibus posticis vittaque dorsali nigris. Long. 

 3i ; alar. 7 lin. 



Frontalia widening in front ; bristles of the front descending to be- 

 yond one-third of the face ; face vertical ; 'facialia bristly to one-fourth 

 of the length ; palpi black. Antennas reaching the epistoma ; second 

 joint about twice longer than deep ; third linear, rounded at the tip, 

 much longer than the second ; fourth and fifth very short ; sixth bare, 

 stout for one-third of the length, more than twice the length of the 

 third. Thorax with four black stripes. Wings grey, brown at the 

 base; costal vein ending at some distance in front of the tip of the 

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

 mediastinal vein ending at much beyond half of the length ; radial vein 

 ending at five-sixths of the length ; cubital vein ending very near the 

 tip of the costal ; prasbrachial vein forming an obtuse angle at the 

 flexure, nearly straight from thence to the tip ; discal transverse vein 

 with two very distinct curves, parted by less than its length from the 

 flexure of the prasbrachial, and by more than half its length from the 

 border. Alulas greyish. Abdomen oval, tessellated. Legs very slender. 



Rare. In Mr. Desvignes's collection. (E.) 



15. neglecta, n. Nigra, cinereo-tomentosa, capite albido, facia- 

 libus usque ad tertiam setosis, palpis fulvis, thorace nigro-trivittato, alis 

 cinereis basi subfulvis, alulis cinereis, abdominis segmentorum margi- 

 nibus anticis canis. Long. 6 ; alar. 12 lin. 



Frontalia deep black, widening much in front ; bristles of the front 

 hardly descending lower than the base of the antennas ; face very slightly 



VOL. II. E 



