BY THOMAS G. SLOANE. 223 



between the coxae, and vertical behind. ^ with three first joints 

 of anterior, and two first of middle tarsi spongiose below. 



Length 15|-18, breadth 5-6 mm. 



Rab. — Forest Reefs in the district of Orange, N.S.W. 



T am indebted to Mr. A. Lee for this fine species; it is the 

 largest Promecoderus I have seen. Its affinity is to P. Itoioitti 

 and P. concolor ; tlie narrow green edge along the lateral channel 

 of the elytra and prothorax will serve to distinguish it from these 

 species ; there are other differences, as size, shape, '^'c. 



Promecoderus blackburm, n.sp. 



(J Very shining black, with a metallic tinge — especially on the 

 head and undersurface. Head smooth ; clypeus with a setigerous 

 puncture on each side ; the transverse impression behind the eyes 

 bi^oad, very lightly marked, crossing the vertex ; eyes rather 

 prominent ; post-ocular prominences small ; antenna} slender. 

 Prothorax about as wide as long, (3^ x 3^ mm.), convex, 

 declivous behind, rounded and rather dilatate on the sides, 

 broadest about the middle, shortly and obliquely narrowed to the 

 base ; marginal border narrow, not sinuate on the sides in front 

 of the basal angles, entire on the base ; the basal angles right 

 angles ; the median line lightly but distinctly impressed. Elytra 

 short, oval, (6^ x 4i mm.), smooth, (with a lens traces of very 

 faint strije are visible). Four last ventral segments with deep 

 round fovese on each side, without internal striae. Anterior 

 thighs thickened in the middle ; first three joints of anterior, and 

 first two of middle tarsi spongiose below. 



$• — Of a generally narrower form than tlie ^ ; prothorax less 

 dilatate at the sides ; elytra more narrowed in front, and less 

 broadly rounded behind. 



Length 11|-I3, breadth 4^ mm. 



Hah. — Port Lincoln, S.A., (Rev. Thos. Blackburn). 



A very distinct species, differing from all those known to me 

 by its broad and short form. 



