36 MUSCID^E. 



albo, antennarum artlculo sexto tertio plus duplo longiore, alis cinereis, 

 alulis albis, abdomine fusiforrai. Ijong. 1^ ; alar. 3 liii. 



Troiitalia black ; bristles of the front not descending along the face ; 

 facialia short, slightly concave, without bristles ; epistonia not promi- 

 nent ; eyes bare. Antennoi not reaching the epistoma ; third joint 

 linear, rounded at the tip, longer than the second ; sixth more than 

 twice the le7i(jth of the third. Costal vein ending at hardly in front of 

 the tip of the wing ; subcostal vein ending at a little before one-third 

 of the length ; mediastinal vein ending at much before half the length ; 

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

 ing the costal at its tip ; prfebrachial vein forming an obtuse angle at 

 its flexure, almost straight from thence to its tip, Avhich joins the cubital 

 at some distance from the tip of the latter ; discal transverse vein 

 straight, parted by much more than its length from the flexure of the 

 praebrachial and from the border. 



Bare. (E.) 



38. expetita, n. Nigra, gracilis, capite albo, antennarum articido 

 sexto tertio triplo longiore, alis cinereis, alulis albis, abdomine cylindrico 

 lateribns albo subtessellatis. Long. If ; alar. 3 lin. 



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

 of the face ; facialia Avithout bristles ; epistoma slightly prominent ; 

 eyes bare. Antenna! not reaching the epistoma ; third joint linear, 

 rounded at the tip, longer than the second ; sixth about thrice the 

 length of the third. Wings grey ; costal vein ending at very little in 

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

 of the length ; mediastinal vein ending at long before half the length ; 

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

 ing the costal at its tip ; prsebrachial vein forming an obtuse and not 

 sharply defined angle at its flexure, from whence it is almost straight 

 to its tip, which joins the cubital at some distance from the tip of the 

 latter ; discal transverse vein straight, its distance from the hind border 

 much more than its length from the border, and by less than twice its 

 length from the flexure of the pra;brachial. 



Eare. (E.) 



39. atramentaria, Meg. ; Meig. Zw. iv. 291. 93 (1824). Nigra, 

 cano-tomentosa, capite albo, thorace nigro-trivittato, alis cinereis basi 

 et apud vcuas subfuscis, vena prahrachiall cuhitali conjnncta, alulis 

 albidis, abdomine fusiformi, dorso et marginibus posticis nigris. Long. 

 2i-3 ; alar. 5-6 lin. 



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

 of the face ; facialia without bristles ; epistoma not prominent ; eyes 

 bare; palpi slender. Antenna) not reaching the epistoma ; third joint 

 sublinear, almost truncate at the tip, much longer than the second, 

 about twice the length of the third ; thorax with three black stripes. 

 Wings grey, brownish at the base aud along the veins ; costal vein 



