BY FREDERICK A. A. SKUSE. 771 



Head brown, prninose with yellowish. Rostrum, palpi and 

 antennae black. Thorax ochreous with three brown stripes, lateral 

 ones extending posteriorly beyond the suture; pleurae with a 

 brown stripe from beneath the humeri to the base of the halteres; 

 prosternum with an oblong brown spot between the fore coxae ; 

 mesosternum with two oblong brown spots between the intermedi- 

 ate coxa3; scutellum and metanotum brown or brownish. Hal- 

 teres ochreous, the club infuscated. Abdomen browu ; incisions 

 between the superior segments ochreous-yellow, widened into 

 roundish patches on the venter ; ovipositor brownish-ferruginous, 

 lower valves deep brown or black at the base, ochreous-yellow 

 before their insertion. Legs brown ; coxae ochreous ; femora 

 pale at base and somewhat darker at apex. Wings pellucid with 

 a pale brownish tint, the origin and tip of second longitudinal 

 vein, origin of third longitudinal and the cross-veins somewhat 

 clouded with brownish ; stigma roundish, brown, very distinct. 

 Auxiliary vein reaching the costa a little beyond the origin of 

 second longitudinal vein, appearing as if incurved towards first 

 longitudinal vein and connected before its tip by the cross-vein to 

 costa ; first longitudinal vein arcuated into the second longitu- 

 dinal vein through the middle of stigma, and joined to costa by 

 cross-vein ; prgefurca, also third longitudinal vein, angularly bent 

 near the base (remaining portion almost straight), with a small 

 stump of a vein at the angle (these small stumps are exhibited in 

 all three specimens before me) ; prsefurca varying from 2^ to 

 nearly 4 times the length of distance between origin of third 

 longitudinal vein and small cross- vein ; discal cell closed, the great 

 cross-vein before or at its inner end. 



Hah. — Wheeney Creek, Hawkesbury Dist. (Skuse) ; Sydney 

 and Berowra (Masters). January. 



Ohs. — A single specimen was taken in each of the above-named 

 localities. Closely allied to D. zonata, but certainly distinct. 



