TACHINA. 51 



its length, and by much less than its length from the flexure of the 

 praebrachial. 

 Rare. (E.) 



72. fissa, n. Nigra, cano-tomentosa, capite albo, antennarum arti- 

 culo sexto fere ad apicem mcrassato, thorace nigro-vittato, alis subcinereis, 

 alulis albis, abdomine obconico. Long. 4 ; alar. 8 lin. 



Frontalia deep black ; bristles of the front descending beyond one- 

 third of the face ; epistoma not prominent ; lateralia red. Antenna 

 reaching the epistoma ; third joint linear, rounded at the tip, nearly 

 thrice the length of the second ; sixth stout till near the tip, very much 

 longer than the third. Costal vein ending at some distance in front of 

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

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

 ending at about four-fifths of the length ; cubital vein joining the costal 

 very near its tip ; praebrachial vein forming a slightly obtuse angle at 

 its flexure, near which it is slightly curved inward, and is thence almost 

 straight to its tip ; discal transverse vein with two distinct curves, 

 parted from the border by very much more than its length, and by much 

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



Bare. (E.) 



73. rufo-scutellata, Mcq. A. S. E. F. viii. 474. 33 (1850). 

 Nigra, cano-tomentosa, capite flavo albo, thorace nigro-quadrivittato, 

 scutelloferrugineo, alis subcinereis, alulis albis, abdomine obconico nigro, 

 segmentoruin marginibus anticis cano iiiterrupte fasciatis. Long. 3| ; 

 alar.- 7 lin. 



Frontalia black ; bristles of the front extending to half the length 

 of the face ; epistoma testaceous, slightly prominent. Antenna almost 

 reaching the epistoma ; third joint linear, subtruncate at the tip, full 

 twice the length of the second ; sixth stout for nearly half the length, 

 almost twice the length of the third. Scutellum dark ferruginous. 

 Costal vein ending very little beyond where the prsebrachial meets it, 

 and far above the tip of the wing ; subcostal vein ending at about one- 

 third of the length ; mediastinal vein ending at hardly beyond half the 

 length ; radial vein ending at about three-fourths of the length ; cubital 

 vein joining the costal near its tip ; prasbrachial vein forming a right 

 angle and emitting a long branch at its flexure, near which it is much 

 curved inward, and is thence almost straight to its tip ; discal trans- 

 verse vein with two very slight curves, parted from the border by about 

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

 praebrachial. 



Rare. (E.) 



74. effecta, n. Nigra, cano-tomentosa, capite albo, frontalibus 

 nigris, antennarum articulo sexto ad dimidium mcrassato, thorace nigro- 

 quadrivittato, alis subciuereis, alulis albidis, abdomine obcouico sub- 

 tessellato. Long. 3i ; alar. 7 liii. 



