184 «wUscA AUSTRALIS MACQ., M. VETUSTISSIMA WALKER. 
sore or abrasion of the skin. They suck the weat and 
mucus and also blood if a raw surface is available. They 
alight on fresh dung for feeding purposes as well as for the 
deposition of larvae. 
Maie. 
Head. The eyes practically touch for a considerable 
distance, the ocellar tubercle being closely hemmed in 
between the inner and posterior borders of the eyes and. 
separated from them by a very narrow silvery stripe. 
The black frontal stripe is extremely narrow. 
Frontal margin of the eye practically obliterated. 
Cheeks and face silvery. Antennae dark silvery-grey. 
Aristae black and feathered (fig. 10) very like those of the 
house fly. Palps black. 
CBA 
, Sain: vetustissima 2 
M. domestica 9 aes 
DR M.australis 2 
Thorax, If the light comes from the anterior end 
the general effect is black, but if viewed from the opposite: 
quarter it is silver-grey with four well-defined black 
longitudinal bands, the outer ones on each side extending 
to the end of the scutum, whilst the two median bands. 
reach to the vicinity of the middle of the secutum but may 
be continued a little further and may merge into the laterab 
lines. 
