166 



and slightly confluent, elsewhere much larger, deeper, and not 

 confluent. Antennae long, nearly reaching to base of pro- 

 thorax, first joint about as long as the third and twice as 

 thick, the second is the smallest and beadlike, three to five 

 cylindrical, seven and eight slightly, nine and ten 

 strongly, obconical in shape; the apical joint is not emarg- 

 inate, apex truncate, the outside apical angle rounded, the 

 inside one acute. Prothorax about as wide as long, sides 

 dilated near middle, anterior transverse impression almost 

 obsolete, the sub-basal one distinct, disc with a large longi- 

 tudinal, moderately deep, and elliptical depression; punctures 

 at apex about same size as those on vertex of head and 

 transversely confluent, elsewhere much larger and deeper, 

 here and there confluent, and defining a distinct longitudinal 

 carina dividing the depression in the middle. Scutellum 

 round. Elytra at base about one and a half times 

 as wide and about two and a half times as long as 

 the prothorax, sides slightly diminishing in width towards 

 apex, interhumeral and post-scutellar depressions moderately 

 deep, humeral angles salient; punctures large, quadratic, 

 reticulate, and nowhere confluent, those at base, on humeral 

 angles, and at apex much smaller and more scattered, so that 

 these parts are more nitid than the rest of the surface. Legs 

 robust, posterior femora not reaching apex of elytra. 

 Length, 6-13 mm. 



Hab. — Western Australia: Ankertell (H. W. Brown), 

 Beverley (F. H. du Boulay), Cue (H. W. Brown), Geraldton 

 (J. Clark), Mullewa (Miss J. F. May), Mount Squires (Elder 

 Expedition); South Australia: Lake Callabonna (A. Zietz). 

 Type, in author's collection; cotype, I. 12822, in South Aus- 

 tralian Museum. 



This is a very pretty and variable species, particularly in 

 size; on some specimens the head and prothorax are much 

 darker in colour, a very deep blue, and on others violet tinged 

 with green. It was this species that Blackburn doubtfully 

 identified as E. reickei, Spin., from which it can be dis- 

 tinguished by its colour, the apical joint of antennae not 

 ^marginate, the punctures on prothorax more individually 

 distinct, median fascia of white hairs on the prothorax, and 

 the punctures on the elytra smaller, more crowded, and more 

 reticulate. In general appearance it somewhat resembles 

 E. excavata, Westw., from which it differs in being of a 

 brighter colour, the club of the antennae composed of only 

 three joints, and the apical one not emarginate, the disc of 

 the prothorax depressed, only one transverse fascia of hairs 

 on prothorax, and that extending across the middle, and the 

 base and apex of elytra glistening. 



