DIPTEUA. 343 



MUSCA PLACIDA, FeiU, . i. , i , ^^' ^m,'-fT, 



Purpurea ; caput J!avum ; pectus ciuereum, antlce tcalaceum ; abdomen 

 cyaneo-purpureum, suhlus el lateribus antlce testaccum ; antenntB 

 nigrcE, basi ferruginecB ; pedes testacei, tarsis ni(jris ; ahc subcinerecc. 



Purple : head yellow, clothed beneath and behind with yellow hairs, 

 with a while stripe on each side behind along the eye ; crown blackish ; 

 frontalia pitchy, widening much towards the feelers ; facialia beset with 

 short bristles; epistonia and peristoma prominent: proboscis black: palpi 

 tawny : feelers black ; first and second joints ferruginous ; third linear, 

 rounded at the lip, yellow at the base, not reaching the epistoma, about 

 thrice ihe length of the second; breast gray, testaceous in front : abdome'n 

 bluish-purple, testaceous beneath and on each side tuivards the base above : 

 legs testaceous ; feet black : wings slightly gray ; praebrachial vein forming 

 a right angle at its flexure, slightly bent inward near this, straight from 

 thence to the tip : lower cross-vein with the two curves which are slight : 

 alulas dingy white wilh yellow borders. Length of ihe body 3 lines ; of 

 the wings 6 lines. 



South Australia. 



^ , r i 



MuSCA INTERRCPTA. '" '' '" ■* ' ' ' ''* 



Alra ; caput f errugineo-argenteuvi ; abdomen luteum, basi apice vittaque 

 nigris ; antennm nigrce ; pedes picei ; alee sublimpidcc. 



Deep black : head icitli a silvery white covering, ferruginous on each 

 side of the face, clothed with black hairs ; frontalia dark ferruginous, heart- 

 shaped : eyes thickly clothed wilh pale hairs ; mouth, palpi and feelers 

 black ; third joint of the feelers a little longer than the second, not nearly 

 reaching the epistoma : second and third ahdamiaal segments bright luteous 

 tiuih a hUcl inlUiCCc stripe; some whitish reflections tou-ards the tip; under 

 side pale luteous : legs pitchy : wings almost colourless; veins black, tawny 

 at ihe base ; prajbrai-bial vein forming an obtuse and not sharply defined 

 angle at its flexure, very slightly inclined inward from thence to the tip ; 

 lower cross-vein irregularly and very slightly inclined inward : alula; white : 

 halteres tawny with pale yellow knobs. Length of the body 3 lines ; of the 

 wings (> lines. 



Cape. 



