^C> Capt. T. Bioiu) on Tinr 



it is prrcatly narroAvcd anfciimly, so as to be of somewhat 

 triangular outline. 



P. sfitpidiis. — TTead inrlefiiiitely transversely elevated on 

 tlie middle, the clypens much narrowed to the front, and 

 the front fd^e in the midille a little reflexed and ohsourely 

 emarfrinate. Head ron«rh all over the upper snrfaee. 



P. fi'ifidii/iis. — Head, in front, short, dcfloxed. narrowed 

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

 there is no obvious trans-verse elevation limitinjj this elypeal 

 portion from the vertex. Head almost smooth above, the 

 frontal and lateral pujictuation less coarse than is usually 

 seen. 



Tieufrth 0. breadth .") lines. 



Cromwell sand-hills, AFolyneux T\iver. 



Described from a mutilated individual forward(>d by .Mr. J. 

 II. LcM-is. 



Group Opatridse. 

 Syrphetodes ?iodos(f/is, sp. n. 



Opaf/ve, fuscous, speckled with ochraceous and pale ferru- 

 ginous sqr.anifc ; antennsp, palpi, and tarsi ferrufjinous. 



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

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

 widest behind the middle; the sides are gradually widened 

 anteriorly, sometimes there is a slight sinuosity there, towards 

 the base they are distinctly sinuate; the posterior angles are 

 acute; thei'e is an obtuse elevation behind the middle; the 

 front is cmarginate and slightly raised, but the discoidal 

 sculpture is quite hidden by the decumbent, variegate, 

 setiform squamae. ScuieUvm strongly transverse, dark fus- 

 cous. Elytra oblong, gradually harrowed and rounded 

 posteriorly ; at the base they are evidently wider than the 

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

 jection, there is an obtuse nodilorm elevation ; there is 

 another at each side of the scutcllum, two before the 

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

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

 the hind sloi)e, usually consists of tv\o 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 scries on the 

 p<;sterior declivity. 



Anfooiep stout^ setose, reaching hackwaid-s to the f;houlder.s ; 



