/iC Capt. T. Broun on neiv 



it is greatly narrowed anteriorly, so as to be of somewhat 

 triangular outline. 



P. shipidiis. — Head indefinitely transversely elevated on 

 the middle, the clypens mnch narrowed to the front, and 

 the front edge in the middle a little reflexed and obscurely 

 emarginate. Head rough all over the upper surface. 



P. wtidulvs. — Head, in front, short, deflexed, narrowed 

 anteriorly, but quite truncate at the middle of the apex ; 

 there is no obvious transverse elevation limiting this clypeal 

 portion from the vertex. Head almost smooth above, the 

 frontal and lateral pimrtuation less coarse than is usually 

 seen. 



Length D, breadth 5 lines. 



Oomwell sand-hills, Molyneux River. 



Described from a mutilated individual forwarded by Mr. J. 

 n. Lewis. 



Group Opatridse. 

 Syrphetodes nodosalls, sp. n. 



Opaque, fuscous, speckled with ochraceons and pale ferru- 

 ginous sqnarase ; antennse, palpi, and tarsi ferruginous. 



Thorax 2 lines broad by 1|^ long, exclusive of the anterior 

 sngles, which project as far as the front of the eyes ; it is 

 widest behind the middle; the sidts are gradually widened 

 anteriorly, sometimes there is a slight sinuosity there, towards 

 the base they are distinctly sinuate ; the posterior angles are 

 acute; there is an obtuse elevation behind the middle; the 

 front is emarginate and slightly raised, but the discoidal 

 sculpture is quite hidden by the decumbent, variegate, 

 setiform squamae. Scutellnm strongly transverse, dark fus- 

 cous. Elytra oblong, gradually harrowed and rounded 

 ])Osteriorly ; at the base they are evidently wider than the 

 thorax ; at each shoulder, but not forming a lateral pro- 

 jection, there is an obtuse nodiform elevation ; there is 

 another at each side of the scutellnm, two before the 

 middle, and two more in line with these but placed further 

 buck ; an elongate elevation near the suture, on top of 

 the hind slope, usually consists of two contiguous nodosities; 

 there are also some smaller inequalities ; their sides are 

 somewhat explanate, and are marked with large fovese; 

 the apex is triangularly excised; the discoidal punctures are 

 very irregular, but there is a distinct sutural series on the 

 posterior declivity. 



Antenncp stout, setose, reaching backwards to the shoulders ; 



