TACHINA. 89 



nigro-quadrivittato, scutello ferrugineo, alls subcinereis, alulis albis, 

 abdomine obconico, segment! secundi lateribus tibiisque ferrugineis. 

 Long. 3% ; alar. 6 lin. 



Frontalia deep black ; bristles of the front descending to one-third 

 of the face; face oblique; facialia bristly along nearly the whole 

 length; epistoma not prominent ; lateralia red. Antennas reaching the 

 epistoma ; third joint linear, rounded at the tip, more than four times 

 the length of the second ; sixth very minutely pubescent, tapering gra- 

 dually from the base to 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 a little beyond one-third of the length ; me- 

 diastinal vein ending at much beyond half the length; radial vein 

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

 costal very near its tip ; pra3brachial vein forming an almost right angle 

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

 almost straight to its tip ; discal transverse vein with two very slight 

 curves, parted from the border by a little less than its length, and by 

 less than its length from the flexure of the prsebrachial. 



Rare. (E.) 



159. spinipennis, Meig. Zw. iv. 350. 192 (1824). Nigra, cano- 

 tomentosa, capite albido, frontalibus ferrugineis, arista angulata, thorace 

 nigro-quadrivittato, alis sublimpidis, alulis albis, abdomine obconico, 

 basi et marginibus posticis nigris. Long. 2-2^ ; alar. 4-4|- lin. 



Frontalia broad; bristles of the front descending to one-sixth of 

 the face ; face slightly oblique ; facialia bristly along the whole length ; 

 epistoma not prominent ; palpi tawny. Antennae reaching the episto- 

 ma ; second joint a little longer than deep ; third linear, rounded at 

 the tip, four times the length of the second ; fourth and fifth very long ; 

 sixth stout to the tip, nearly twice the length of the third, forming an 

 angle with theffth. Costal vein ending at hardly in front of the tip of 

 the wing ; subcostal vein armed with spines, ending at beyond one- 

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

 the length ; radial vein ending at about seven-eighths of the length ; 

 cubital vein joining the costal near its tip ; praBbrachial vein forming 

 a very obtuse angle at the flexure, hardly curved inward from thence 

 to the tip ; discal transverse vein straight, parted by very much more 

 than its length from the flexure of the pra3brachial, and by a little more 

 than its length from the border. 



Eare. (E.) 



160. accidens, n. Nigra, gracilis, capite albo, thoracis lateribus 

 albido-tomentosis, alis subcinereis, alulis pallide testaceis, abdomine 

 cylindrico, segmentorum marginibus anticis albidis, pedihus nigris. 

 Long. 3 ; alar. 5 lin. 



Frontalia deep black ; bristles of the front not descending along the 

 face ; facialia bristly along three-fourths of the length ; epistoma not 



VOL. II. N 



