80 MUSCID.E. 



Frontalia piceous ; bristles of the front descending to two-thirds of 

 the face; face slightly oblique; epistoma not prominent; lateralia red. 

 Antennae reaching the epistoma ; third joint linear, truncated at the tip, 

 nearly four times the length of the second ; sixth very minutely pubes- 

 cent, stout for more than half the length from the base, much longer 

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

 tip of the wing ; subcostal vein ending before one-third of the length ; 

 mediastinal vein ending before half the length ; radial vein ending before 

 four-fifths of the length; cubital vein joining the costal near its tip. 

 Prcebrachial vein forming a very obtuse angle at its flexure, from whence 

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

 curves, parted from the border by more than its length, and by its 

 length from the flexure of the prsebrachial. 



Rare. (E.) 



139. retracta, n. Nigra, cano-tomentosa, capite albo, facialibus 

 ad sextam setosis, thorace nigro-quadrivittato, alis subcinereis, alulis albis, 

 abdomine obconico, vitta dorsali et segmentorum marginibus posticis 

 nigris. Long. 3^ ; alar. 6 lin. 



Head rather prominent in front. Frontalia piceous, linear, striated ; 

 bristles of the front descending to half the length of the face; face 

 slightly oblique. Facialia bristly for one-sixth of the length. Epis- 

 toma not prominent. Antennae reaching the epistoma ; second joint 

 longer than deep ; third linear, slightly truncated, full four times the 

 length of the second; fourth short; fifth rather long; sixth bare, 

 stout for three-fourths of the length, hardly longer than the third. 

 Costal vein ending at far in front of the tip of the wing ; subcostal 

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

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

 at four-fifths of the length ; cubital vein ending very near the tip of the 

 costal ; praebrachial vein forming a very slightly obtuse angle at the 

 flexure, which emits a very short branch, very slightly bent inward 

 near this, and thence almost straight to the tip ; discal transverse vein 

 slightly bent inward, parted by its length from the flexure of the prse- 

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



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



140. consanguinea, Mcq. A. S. E. F. vii. 387. 46 (1849). Ni- 

 gra, cano-tomentosa, capite albo, antennarum articulo sexto ad dimidium 

 incrassato, thorace nigro-quadrivittato, scutelli apiceferrugineo, alis sub- 

 cinereis, alulis albis, abdomine ovato subtessellato. Long. 3^ ; alar. 

 7 lin. 



Frontalia broad ; bristles of the front descending to half the length 

 of the face ; face hardly oblique ; epistoma not prominent ; lateralia 

 red. Antennae reaching the epistoma ; third joint linear, almost trun- 

 cated at the tip, nearly four times the length of the second; fifth long ; 

 sixth very minutely pubescent ; stout for about half the length, very 



