36 



MEMOIRS OF THE QUEENSLAND MUSEUM. 



MALE. 

 Head. — The eyes occupy the greater part of the front view and are 

 contiguous for a considerable distance (fig. 11), separated only by a very narrow 

 frontal stripe. The ocellar triangle is elongate and narrow, projects prominently, 

 and bears about four pairs of ocellar bristles. The parafrontals are wide and 

 silvery. The frontal stripe is narrow and brownish. 



The antennae are smoky in colour. The form of the arista is shewn in 

 fig. 32. There are tM'O prominent bristles, also a shorter third one, on the second 

 joint of the antenna. 



Thorax (fig. 3). — When lighted from the anterior end the general effect is 

 black and shiny, but when viewed from the opposite quarter four distinct stripes 

 are to be seen separated by narrow greyish zones. The outer stripes extend 

 from the anterior portion of the thorax to the end of the scutum and on to 

 the anterior corners of the scutellum. The two inner stripes extend from the 

 anterior end of the prescutum to about the midregion of the scutum where 

 they merge into a rather smolvy colouration occupying the middle and posterior 



Text-fig. 17, Wings drawn to same scale; M. terrce-regin/x male; 18, M. terrce-regince 

 female; 19, M. Mlli male; 20, H. Mlli female. 



part of the scutum between the longitudinal stripes. The four stripes are of 

 approximately equal width and are each rather narrower than the central 

 silvery stripe. The two dark stripes of each side are joined up by a black 

 band anteriorly, somewhat as in M. fergusoni. The posterior end of the scutellum 

 is smoky, this colouration becoming intensified so that at the anterior end the 

 scutellum is practically black. The cha?totaxy is indicated in fig. 16. It might 

 be mentioned that the scutellum is very hairy, the setas being particularly well 

 developed and the macrochfetae quite long, 



Wings. — The wings are clear, the veins yellowish brown. The venation 



