NOTES ON QUEENSLAND FLIES.— JOHNSTON AND BANCEOFT. 



33 



Wings. — The veins are yellowish brown. The venation is shewn in fig. 17. 

 The squame is pale yellow. 



Legs. — The tarsus of the third leg is figured in fig. 27. 



Abdomen. — The abdomen is pale yellow with a median dorsal band, the 

 intensity of whose colouration is interrupted in places so that there appears a 

 succession of light-brown and dark-brown markings. The colouration extends 

 to the anterior half of the first abdominal segment* where it is rather dark 

 brown. Laterally on each segment there is a patch of darker yellow (fig. 1). 



FEMALE. 

 Head. — The main external difference between the male and female is in 

 the size of the eyes which in the female are separated (where they most closely 

 approximate) by about a third of the width of the head (fig. 10), whereas the 

 minimum distance is about one twenty-fifth in the male. The silvery para- 

 frontals extend upwards between the eyes as a fairly broad band separated by 



Text-figs. .5-8. — Camera lucida outlines of face views drawn to same scale to show 

 relationship of eyes, frons, etc. Fig. 5, M. australis male; 6, M. australis female; 7, 

 M. vetustissima male; 8, M. vetustissima female; 9, M. terrce-regince male; 10, M. terrce-regince 

 female; 11, M. Mlli male; 12, M. Mlli female. Lettering as in preceding figures — ant.,. 

 antenna; e., eye; fr., frons or frontal stripe; /r.b., frontal bristles; fc, facialia; o.?>., ocellar 

 bristle; o.t., ocellar triangle; p.fc, parafaeialia; p.fr., paraf rontalia ; v.h., vertical bristles. 



the very shallow smoky-coloured frontal stripe. There are two prominent 

 vertical bristles on either side behind the eyes. The ocellar triangle does not 

 project and the ocellar bristles are short. 



*The terms 1st to 4th are applied to the obvious abdominal segments — i.e., the reduced 

 first segment is not taken into account as a separate one but is considered as a part of the 

 second with which it is fused, the two together being dealt with as the first segment. 



C 



