133 



Two specimens (the sexes) examined belong to the 

 parallela, Saund., section, but differ from that speci-es in the 

 navicular form, costate elytra, and the brilliant but dark 

 coloration of the pronotum and underside. It is also near 

 impressicollis, Macl., but differs in the form of prothorax and 

 in the colour of pronotum and underside. Types in the 

 Xational Museum, Melbourne. 



Stigmodera plaxata, n. sp. 

 PI. x. 3 fig. 30. 



Ovate, depressed. Head, antennae, prothorax, scutelluin. 

 underside, and legs golden-green, elytra pale-yellow. 



Head excavated and channelled, closely punctate. Pro- 

 thorax straight in front, bisinuate behind, anterior angles 

 deflected and rounded, posterior slightly produced and sub- 

 acute, widest at base, narrowing arcuately to the apex: disc 

 •densely evenly punctate, with a smooth medial line terminat- 

 ing at the base in a small fovea. Scuielhim cordiform, 

 depressed, smooth. Elytra ovate, rather flat, sides very little 

 sinuate, not serrated behind; apex with a minute oblique 

 lunation, finely bispinose : striate-punctate, the flanks of 

 prosternum densely rugose-punctate. Sternum coarsely, 

 abdomen very finely and densely punctate. Dim ., 13 x 5 mm. 



Jiah. — Western Australia. Type in the National 

 Museum, Melbourne. 



Two specimens, both male, examined. The species comes 

 near pimctiventris, Saund., and dispar, Blackb., and some 

 varieties of guttata, Blackb., from all of which it differs in 

 its more depressed form, more ovate elytra, and the close and 

 even puncturation of the whole upper-surface (including the 

 -elytral intervals), and the absence of any dark coloration of 

 the elytra (in one specimen there is a very narrow basal 

 sreen margin perceptible). From dlspar, Blackb., it differs 

 in larger size, flatter surface, and smaller apical lunation. 

 Cinnamomea, Macl., is sometimes very like it, but the 

 .abdomen is always yellow and the prothorax very different 

 (more convex and with coarse sparse punctures) ; ignea, 

 Blackb., is another ally, with coppery thorax and underside, 

 "with some dark markings on the elytra. 



Stigmodera acuticollis, n. sp. 

 PI. x., fig. 31. 



Elongate-ovate. Head and pronotum nitid bronze-black 

 or tinged with blue, elytra red with suture and extreme apex 

 black, antennae, underside, and legs dark-blue. 



