132 MB. F. WALKEB ON NEW SPECIES OF DIPTERA • 



blackish spots along the hind border ; a black costal stripe, broadest 

 towards the base and towards the tip, contiguous in the middle to a 

 black dot ; veins black. Length of the body 8 lines ; of the wings 

 14 lines. 



Earn. ASILID^^, Leach. 



Subfam. Asilites, Walk, 



Gren. Ommatius, III. 



5. Ommatius canus. Mas. Nigro-piceus, capite pectoreque albidis, 

 facie subaurata, abdomine cinereo segmentis albido niavginatis apice 

 nigro nitente, femoribus postice halteribusque albidis, alis cinereis 

 apice nigricantibus. 



Male. Piceous black. Head and pectus with shining whitish tomentum. 

 Head broader than the thorax ; face slightly gilded'; mystax composed 

 of a few white bristles. Eyes flat in front. Proboscis and antennae 

 black. Thorax with cinereous-bordered sutures. Abdomen cinereous ; 

 hind borders of the segments whitish ; tip black, shining. Legs 

 black ; femora whitish on the hind side except towards the tips ; hind 

 femora whitish on both sides. Wings cinereous, blackish at the tips ; 

 veins black; halteres whitish. Length of the body 5 lines; of the 

 wings 8 lines. 



Tarn. MUSCID^, Latr. 



Subfam. Tachinides, Walh. 



Gren. EuEYGASTEE, Mac^. 



6. EuRYGASTER FINGENS. FcEm. Anthracina, capite subaurato frou- 

 talibus piceis facialibus setosis, antennis piceis articulo 3° longissimo, 

 thorace antico cinereo, abdomine maculis duabus apicahbus elongatis 

 albidis, alis cinereis apud costam basalem subnigricantibus. 



Female. Coal-black, broad, bristly. Head pale gilded cinereous ; fron- 

 talia piceous, linear ; facialia beset with bristles ; epistoma not pro- 

 minent. Eyes bare. Antennae piceous, extending to the epistoma ; 

 third joint linear, rounded at the tip, eight times the length of the 

 second ; arista longer than the third joint. Thorax with cinereous 

 tomentum in front where two slender black stripes are apparent. 

 Abdomen a little broader but not longer than the thorax, with an 

 elongated whitish spot on each side at the tip. Wings cinereous, 

 slightly blackish in front towards the base ; veins black ; praebrachial 

 vein forming a right angle at its flexure, curved inward from thence 

 to its tip, which is nearly contiguous to the cubital vein at some dis- 

 tance in front of the tip of the wing; discal transverse vein slightly 

 bent inward near its base, parted by much less than its length from 

 the border, and by nearly its length from the flexure of the praebra- 

 chial vein; alulae dingy whitish. Length- of the body 3^ lines; of 

 the wings 7 lines. 



