MUSCA. Ill 



11. domestica, L. Fn. 1833 (1761); F. ; Schr. ; Gmel; Fal. ; 

 Meig. ; Desv. ; Mcq. ; Zett. Nigra, cinereo-tomcntosa, capite argen- 

 tato, tliorace quadrivittato, alls subcinereis, abdomine subtesseUato 

 subtus pallido. Long. 3-3| ; alar. 6-7 lin. 



House Fly. — Black, with grey tomeutum. Head somewhat silvery 

 in front ; frontalia ferruginous in front ; facialia bristly for one-third of 

 the length ; epistoma not prominent. Antennae not reaching the epi- 

 storaa ; third joint slender, fidl fom* times the length of the second ; sixth 

 plumose to three-fourths of the length. Thorax with four black stripes. 

 Wings almost limpid ; prsebrachial vein forming a rounded obtuse 

 angle at its flexure, nearly straight from thence to the tip ; discal trans- 

 verse vein nearly straight, parted by its length from the flexure of the 

 prtebrachial, and by more than half its length from the border. Alula3 

 whitish. Abdomen slightly tessellated, testaceous beneath. 



Everywhere abundant. (E. S. I.) 



12. corvina, F. S. I. ii. 440. 21 (1781); Gmel.; Fal.; Meig.; 

 Mcq. ; Desv. ; Zait.—ludifica, F. ; Pz. ! Fn. cv. \Z.~Tau, Schi-.— 

 nigripes, Pz. ! Fn. Ix. 13. Nigra, capite argenteo, thorace cano-to- 

 mentoso quadrivittato, alis subcinereis ; Mas, abdomine testaceo vitta 

 dorsali nigra ; Fcem. abdomine cano nigro-tessellato. Long. 3| ; alar. 

 7 lin. 



Black. Head silvery-white ; frontalia deep black ; facialia beset 

 with bristles ; epistoma not prominent. Antenna? almost reaching the 

 epistoma ; third joint about four times the length of the second ; sixth 

 plumose to the tip. Thorax with hoary tomentum. Wings slightly 

 grey ; subcostal vein ending at much beyond one-third of the leng-th of 

 the wing ; mediastinal vein ending at a little beyond half the length ; 

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

 vein forming; a rounded obtuse angle at its flexure, nearly straight from 

 thence to the tip ; discal transverse vein with two distinct cm'ves, parted 

 by fuU half its length from the border, and by much less than its length 

 from the flexm-e of the prajbrachial. Haltercs pale testaceous. Male. 

 Thorax with four broad black stripes. Alida? greyish. Abdomen testa- 

 ceous ; base and dorsal stripe black. Fern. Thorax with four slender 

 black stripes. Alulae white. Abdomen hoary, tessellated with black. 



Common. (E.) 



13. vitripennis, Meig. Zw. v. 73. 38 (1826). Nigra, cano- 

 tomentosa, capite subargenteo, frontaUbus antice ferrugineis, thorace 

 quadrivittato, alis subhmpidis, abdomine testaceo vitta dorsali apiceque 

 nigris. Long. 3-3^ ; alar. 7-8 lin. 



Black, with hoary tomentum. Head somewhat silvery; frontalia 

 ferruginous in front ; facialia bristly to one-third of the lengtli. An- 

 tennae not reaching the epistoma ; tliird joint about four times the 

 length of the second; sixth phmaose to three-fourths of the length. 

 Thorax \vith four 1)lack stripes. Wings nearly limpid ; subcostal vein 



