MUSCA. 109 



bare ; palpi tawny. Antennae black, not reaching the epistoma ; second 

 joint ferruginous at the tip ; third thrice the length of the second ; sixth 

 deeply plumose for more than half the length. Scutellum and base of 

 abdomen generally purple. Wings slightly grey ; subcostal vein end- 

 ing at much beyond one-third of the length ; mediastinal vein ending 

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

 five-sixths of the length; pra3brachial vein with a very short branch, 

 and forming an obtuse angle at its flexure, very slightly curved from 

 thence to its tip ; discal transverse vein with the fore curve much 

 deeper than the hind one, parted from the flexure of the pra3brachial 

 and from the border by a little less than half its length. Alula? dark 

 grey. Halteres tawny. Legs black. 

 Not rare. (E.) 



7. vespillo, F. E. S. iv. 318. 26 (1792) ; Fal. ; Zett.sepulcralis, 

 Meig. Nigra, capite argenteo-albo, facialibus palpisquQ fulvis, thorace 

 cano-quadrivittato, alis cinereis, abdomine viridi. Long. 3-3^; alar. 

 6-7 lin. 



Black, with hoary tomentum. Head with silvery- white tomentum ; 

 facialia tawny, bristly along half the length; mediana and epistoma 

 red, the latter not prominent; eyes bare; palpi tawny. Antennas 

 not near reaching the epistoma ; third joint hardly twice the length of 

 the second ; sixth plumose for more than half the length. Thorax with 

 four hoary stripes. Wings grey ; subcostal vein ending very little be- 

 yond one-third of the length of the wing ; mediastinal vein ending at 

 one-half of the length ; radial vein ending at five-sixths of the length ; 

 prrebrachial vein forming a very obtuse angle at its flexure, almost 

 straight from thence to its tip ; discal transverse vein with two rather 

 deep curves, parted from the border and from the flexure of the pra?- 

 brachial by less than half its length. Alula? white. Halteres testa- 

 ceous. Abdomen green. Legs black. 



Generally distributed. (E. S. I.) 



8. cserulea, Meig. Zw. v. 63. 23 (1826); Mcq. ; Zett. cognata, 

 Meig. Zw. vi. Nigra, cano-tomentosa, facialibus ferrugineis, palpis 

 niyris, thorace quadrivittato, alis cinereis, abdomine ca3ruleo. Long. 

 2-3^; alar. 5-7 lin. 



Black, tinged with grey tomentum. Facialia ferruginous, bristly 

 except by the epistoma, which is slightly prominent ; eyes bare. Palpi 

 black. Antenna? nearly reaching the epistoma ; third joint four times 

 the length of the second; sixth plumose for two-thirds of the length. 

 Thorax with four stripes. Wings grey ; subcostal vein ending much 

 beyond one-third of the length of the wing ; mediastinal vein ending 

 much beyond half the length ; radial vein ending at beyond five-sixths 

 of the length ; pra?brachial vein forming an obtuse angle at its flexure, 

 slightly curved inward near this, and straight thence to its tip ; discal 

 transverse vein with two slight equal curves, parted from the border 



