390 STUDIES IN AUSTRALIAN ENTOMOLOGY, XVI , 



of the elytra, where the basal border blends with that of the sides. 

 It is extraordinary to find in this species, a Trigonotomid witb 

 the outer scrobe of the mandibles setose. 



Genus Notonomus. 



NOTONOMUS BANKSI, n.Sp. 



(J. Elongate-oval, convex; head large(4"2 mm. across eyes); 

 prothorax almost as long as broad, not sinuate on sides near 

 base, apex and base of equal width(4 mm.), basal angles obtuse, 

 posterior marginal puncture on border just before basal angles;, 

 elytra deeply striate, interstices convex, third 4-punctate (pos- 

 terior puncture on apical declivity), eightli not convex, wide, not 

 wider than ninth, except near base, basal border not dentate at 

 humeral angles; intercoxal declivity of prosternum rounded, 

 narrow in middle; metasternum, with episterna, short. Tarsi 

 not striolate on upper surface, onychium glabrous beneath. 

 Head and prothorax shining bronzy-green; elytra peneous-bronze; 

 under surface, mandibles, and labrum black; anterior ventral 

 segments subviridescent laterally; legs, antennae, and mouth- 

 parts piceous-red. 



Head convex; front strongly biimpressed; eyes, with oibits, 

 prominent. Mandibles decussating. Prothorax long, narrow 

 (5-3 X 5'5 mm.), widest before middle, strongly declivous to 

 anterior angles; sides lightly rounded, obliquely narrowed to 

 base, strongly rounded to apex; anterior angles obtuse, not 

 marked; base lightly emarginate in middle; basal angles hardly 

 marked; border narrow, extending round basal angles on to base 

 on each side; median line lightly marked; lateral basal impres- 

 sions narrow, deep near base, extending lightly forward in an 

 outcurved course. Elytra oval(13 x 7 mm.), convex; sides lightly 

 rounded; lateral apical sinuosities well-marked, but shallow; 

 basal boi'der joining lateral border at humeral angles without 

 interruption, but inner angle decidedly marked; lateral border 

 narrow; strise simple; interstices strongly and roundly convex, 

 not carinate on apical declivity, tenth well-developed and extend- 

 ing'forward to about one-half the length of elytra. Mesosternum 



