DIPTEKA. 335 



tluiu the tliiid : chest unth Jive indistinct and interrupted black stripes: ab- 

 domen dull greenish blue, with slight white reflections, a little shorter and 

 broader than the chest: legs black: wings slightly gray ; praebrachial vein 

 forming a right angle at its flexure, much bent inward near this, almost 

 straight from thence to the tip ; lower cross-vein with the two curves which 

 are distinct: alulae gray, with white borders: halleres tawny. Length of 

 the body 3|^ lines ; of the wings 8 lines. 



Madras or Calcutta. 



//>-^ 



MCSCA VIOLACEA. 



Cinereo-nigra ; abdomen purpureum ; ahc cinerece, basi nigricantes. 



Head wanting : chest black, tinged with gray : breast with a luteous 

 scapula on each side of the fore part, and another on each side of the hind 

 part : abdomen purple : legs black : ivings gray, blackish at the base ; prte- 

 brachial vein slightly curved inward near the flexure, where it forms a right 

 but not sharply detined angle, straight from thence to the tip, their junc- 

 tion rounded ; lower cross-vein with two curves, the upper outward, deeper 

 and shorter than the lower which is inward : alulae dark gray with pale 

 borders : halteres tawny with whitish tips. Length of the body 6 lines ; 

 of the wings 14 lines. 



New Zealand. 



MUSCA INDUCTA. -fM-f^'^t^^x 



Cyanea ; caput albidum ; antennce picecE ; pedes nig ri ; alec cinerece. 



Fern. Blue, tinged with green and purple : head with a white covering ; 

 frontalia pitchy, their disk ferruginous in front ; facialia ferruginous, beset 

 with very short bristles ; episloma ferruginous, prominent ; lateralia fer- 

 ruginous : eyes bare : palpi taivny : feelers pitchy ; third joint \me&v, fer- 

 ruginous at the base, rounded at the tip, more than thrice the length of the 

 third, nearly reaching the epistoma ; sixth feathered nearly to the tip, veiy 

 much longer than the third : scutcheon and abdomen mostly blue and 

 purple : legs black : ivings gray ; veins black, pitchy at the base ; praebra- 

 chial vein foiTning a right but not sharply defined angle at its flexure, be- 

 yond which it is bent inward ; lower cross-vein very slightly undulating : 

 alulae gray. Length of the body 4 lines ; of the wings 9 lines. 



East Indies. 



