TACHINA. 29 



near its tip, parted from the border by very much more than its own 

 length, and by one-fourth of its length from the flexure of the praebra- 

 chial. Abdomen ferruginous, with a black stripe, tessellated with 

 white. 



Not rare. (E. S.) 



22. analis, Desv. E. M. 54. 4 (1830). Nigra, cinereo-tomentosa, 

 capite albo, thorace nigro-quadrivittato, scutello ferrugineo, abdomine 

 nigro, alis cinereis, alulis albidis, abdomine obconico tessellato. Long. 

 5; alar. 11 lin. 



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

 third of the face ; face vertical ; facialia without bristles ; epistoma 

 prominent. Antennae nearly reaching the epistoma; second joint 

 almost twice longer than deep ; third sublinear, rather deep, very much 

 longer than the second, rounded at the tip ; fourth short ; fifth rather 

 long ; sixth bare, tapering from the base to the tip, twice the length of 

 the third. Abdomen black. Costal vein ending at some distance in 

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

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

 the length ; radial vein ending at five-sixths of the length ; cubital vein 

 ending near the tip of the costal ; prsebrachial vein forming a right 

 angle at the flexure, which emits a branch, curved inward near this, 

 and thence straight to the tip ; discal transverse vein with two indis- 

 tinct curves, parted by one-third of its length from the flexure of the 

 prabrachial, and by much less than its length from the border. 



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



23. viridulans, n. Nigra, cano-tomentosa, capite albo, thorace 

 nigro-trivittato, alis cinereis basi subfuscis, alulis subcinereis, abdo- 

 mine ovato nigro-viridi vix tessellato. Long. 3f ; alar. 8 lin. 



Frontalia piceous; bristles of the front descending to one-third of 

 the face; facialia without bristles; epistoma pale testaceous, slightly 

 prominent; lateralia red. Antennae nearly reaching the epistoma; 

 third joint a little longer than the second, increasing in breadth towards 

 the tip, which is slightly rounded ; fifth longer ; sixth stout, especially 

 towards the base, nearly twice the length of the third; 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 

 beyond half of the length ; radial vein ending at beyond four-fifths of 

 the length ; cubital vein joining the costal near its tip ; praebrachial 

 vein emitting a short branch at its flexure, very slightly curved inward 

 from thence to its tip ; discal transverse vein with the fore curve very 

 slight, the hind one hardly perceptible, parted from the border and 

 from the flexure of the prsebrachial more than half its length. 



Not common. (E.) 



24. aenea, Meig. Zw. iv. 273. 60 (1824); Mcq.; Zett. atrata, 



