194 Transactions. 



humeri blackish-brown ; in certain lights may be seen 2 lighter longitudinal 

 stripes anterior to the transverse suture, while posterior to it are 2 black 

 stripes, the edges of the dorsum also being here margined with black ; those 

 4 stripes posterior to the suture do not extend to the scutellar suture ; 

 pleurae pale yellowish-green with brownish markings on the pteropleurae 

 and mesopleurae ; the lower half of the pteropleurae and sternopleurae 

 dark brown ; metapleurae hairy ; scutellum apple-green with a darker 

 brownish base, the spines short and pale yellow ; halteres dark tawny. 



Legs tawny but paler than the coxae ; tarsi fuscous from the apex of 

 the epitarsi to the onychotarsi (inclusive) ; in certain lights the posterior 

 protarsi with a darker mark at the apex ; posterior tibiae with a darker 

 tawny colour above ; posterior femora slightly thickened ; the protarsi of 

 all legs a little more than half the length of the Avhole joint. 



Wings very faintly tinted with yellow ; stigma pale yellow ; veins 

 brownish-yellow ; auxiliary vein not sinuated ; 1st section of 2nd vein 

 about three times the length of the anterior cross-vein and almost parallel 

 to the costa ; 1st section of 3rd vein shorter than anterior cross-vein, the 

 2nd section slightly sinuated to the bifurcation, the anterior branch arising 

 at a slightly acute angle and distinctly curved forward to the costa, the 

 posterior branch curved downward and forming an obtuse angle with the 

 2nd section ; apex of discal cell distinctly posterior to apex of 2nd vein ; 

 anterior cross-vein anteriorly oblique ; vein separating the basal cells 

 present ; both basal cells closed toward the base, the 2nd of those cells 

 being considerably narrower than the 1st. 



Abdomen covered with delicate minute and bristle-like hairs, fusiform, 

 about twice as long as the thorax and distinctly broader, composed of 7 

 segments, the apex upturned and bearing the 2 styliform appendages ; the 

 whole tawny but semi-diaphanous on basal half, while at the base is a 

 blackish spot ; each segment except the 1st and 6th margined posteriorly 

 with blackish-brown, which on the 2nd, 3rd, and 4th segments extends to 

 and along the lateral margins in the form of a triangular spot ; in the middle, 

 at the anterior margin of the 4th segment is a circular black spot ; on the 

 5th the black margin hardly extends to the posterior corners, on the 6th 

 it is confined more or less to the centre of the posterior margin, while on 

 the apical segment it forms a broader and wider marking. The 1st joint 

 of the styliform appendages is tawny, hairy, and equal in length to the 

 2nd, which is elongate, fusiform, and tawny on proximal half but black 

 distally, carrying long hairs. The apical segment of the abdomen is hairy. 



$. Length, 6 mm. ; wing, 5-75 mm. 



Habitat. — Dimedin, in the bush, January (Miller) ; Ranfurly, February 

 (Howes). 



