76 MUSCID^E. 



half the length, very much longer than the third ; thorax with four 

 Hack stripes ; scutellum ferruginous. Costal vein ending at a 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 the length ; ra- 

 dial vein ending at hardly beyond five-sixths of the length ; cubital 

 vein joining the costal near its tip ; prsebrachial vein forming a very 

 obtuse angle at its flexure, from whence it is almost straight to its tip ; 

 discal transverse vein with the fore curve a little more distinct than the 

 other, which is hardly perceptible, parted from the border by very little 

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

 of the prsebrachial. 

 Bare. (E.) 



130. intersecta, n. Nigra, cano-tomentosa, capite albo, thorace 

 nigro-trivitiafo, alis cinereis, alulis albis, abdomine longi-obconico tes- 

 sellato. Long. 2i ; alar. 5 lin. 



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

 third of the face ; face vertical ; epistoma not prominent. Antenna 

 nearly reaching the epistoma ; second joint rather less than twice longer 

 than deep ; third decreasing in depth from the base to the tip, which 

 is rounded, nearly twice the length of the second ; fourth indistinct ; 

 fifth very short ; sixth plumose to nearly half the length, stout for full 

 one-fourth of the length, full twice the length of the third. Thorax 

 with three black stripes. Costal vein ending at far in front of the tip 

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

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

 at a little beyond three-fourths of the length ; cubital vein ending near 

 the tip of the costal ; preebrachial vein forming a hardly obtuse angle at 

 the flexure, which emits a short branch, much bent inward near this, 

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

 indistinct curves, parted by less than its length from the flexure of the 

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



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



131. erecta, n. Nigra, cano-tomentosa, capite albo, facialibm 

 totis setosis, pulpis fulvis, thorace nigro-quadrivittato, alis subcinereis, 

 alulis cinereis, abdomine subelliptico, basi vitta dorsali et segmentorum 

 marginibus posticis nigris. Long. 3f ; alar. 7 liu. 



Frontalia deep black, linear ; bristles of the front descending to a 

 quarter of the face ; face very slightly oblique ; facialia beset with bristks 

 for the whole length. Antennae reaching the epistoma; second joint 

 not longer than deep ; third linear, slightly truncated, more than four 

 times the length of the second ; fourth almost obsolete ; fifth short ; 

 sixth bare, stout for one-third of the length, very much longer than the 

 third. Costal vein ending at very little 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 a little beyond half of the length ; radial vein 



