30 



smooth, shining, with a fine foveate row along anterior and 

 posterior margins : postscutellum with a stout acute spine : 

 latero-posterior angles of metanotum with a small acute spine 

 or tooth. Abdomen stout, distinctly less than twice as long 

 as greatest width ; first segment one- half as long as greatest 

 width, the third rather longer than first and second combined, 

 more than twice length of following united : first segment and 

 most of the second striate, the rest smooth and shining. Legs 

 slender. Scape slender ; pedicel barely one-half longer than 

 wide : first funicle joint fully as long and as wide as pedicel ; 

 the second a little shorter, a little longer than wide ; third 

 and fourth small, transverse; club 6-jointed, joints 1-5 trans- 

 verse, the first smaller than others, 2-5 of about equal length, 

 the third slightly the widest. Fore wings attaining apex of 

 abdomen : moderately broad, the apex moderately rounded ; 

 a little less than proximal half (to base of marginal vein) 

 hyaline, the rest plainly infuscate ; discal cilia dense, 

 moderately fine ; marginal cilia moderately long : submarginal 

 vein attaining costa at almost one-half wing-length : marginal 

 vein a little more than half length of submarginal, the stigmal 

 very short: venation fuscous, distinct. Length, 1'50 mm. 



Bab. — New South Wales: Brooklyn. One female, 

 labelled "Sweeping grass, etc., November 18, 1914, A. A. 

 Girault," 



Tyjte. — I. 5430, South Australian Museum. A female 

 on a tag, antennae and forewings on a slide. 



Trimoeus auratus, n. sp. 

 9 • Head black ; thorax bright orange-yellow, the 

 scutellum dusky : base of abdomen bright-yellow, the rest 

 dusky-black ; legs golden-yellow : antennal scape yellow, dusky 

 at apex, the antennae otherwise black. Head transverse, no- 

 wider than the thorax, the vertex thin, the frons a little 

 convex : smooth and shining, toward mouth with converging 

 striae : a very fine carina runs from antennal insertion to 

 anterior ocellus: eyes moderately large, bare. Thorax a little 

 longer than greatest width : parapsidal furrows complete but 

 delicate ; scutum with fine surface sculpture and pubescence ; 

 scutellum smooth, at its base with very fine pubescence ; post- 

 scutellum with a short stout acute tooth : latero-posterior 

 angles of the metanotum not acute. Abdomen stout, not 

 much longer than its greatest width : first segment transverse, 

 the third occupying fully one-half length, the first and second 

 and base of third longitudinally foveate-striate. Forewings 

 long ; moderately broad ; subhyaline : discal cilia fine and 

 dense ; venation light-fuscous ; marginal vein almost as long 

 as the submarginal, the stigmal short, with a distinct knob. 



