282 REVISION OF THE AUSTRALIAN SPECIES OF ADELIUM, 



are unequal in size, those in the striae nearest the suture being 

 larger and deeper than in the striae towards the sides. 



Adelium bicolor, n.sp. 

 (Plate iii., fig.5.) 



Elongate rather flat; head and prothorax greenish-bronze, 

 shining; elytra reddish-bronze; palpi, antennae and tarsi reddish- 

 brown. 



Head rugosely punctate, epistomal ridge rounded and pro- 

 minent. Eyes large and prominent. Antennae of male moder- 

 ately long, of female much shorter; third joint less than the fourth 

 and fifth combined. Prothorax wider than long (3x5 mm.), with 

 greatest width behind the middle, with anterior angles slightly- 

 produced forward and obtuse, truncate behind; sides widely 

 rounded with foliaceous margins and raised border throughout; 

 thicker on sides than in front and behind. Posterior angles 

 obtuse but defined. Disc finely punctate, with some irregular 

 larger depressions. Median canal faintly defined. Elytra a little 

 wider than the prothorax and about three times as long (9 x 5*3 

 mm.), shoulders widely rounded, sides tapering towards apex; in 

 female elytra more convex, wider and stouter. Striate-punctate, 

 striae with punctures large, regular and close; intervals smooth, 

 very slightly convex, and without any sign of tuberculation 

 towards apex. Abdomen and sternum black and shining, last 

 segment of former finely punctate. Tarsi of male much wider 

 than those of female. Intercoxal process entire and truncate. 

 Dimensions — <J 14 x 5*3 mm.; 9 1^"5 x 6 mm. 



Log. — Mount Kosciusko. 



This species comes under Subsection C of my classification, and 

 is near the A. calosomoides Kirby, type, from which it is distin- 

 guished by colour and by its flatter and more elongate-ovate 

 form, less transverse prothorax and larger punctures in elytral 

 series. It is very common on Mount Kosciusko, above 4000 ft. 

 altitude. Fresh specimens show the bicoloration to a marked 

 degree, the bright bronze becoming darker with age. Distin- 

 guished from A. simVatum group by its uninterrupted intervals. 



