384 STUDIES IN AUSTRALIAN ENTOMOLOGY, XVI., 



without lateral processes, border a little thickened at position of 

 these processes. Iiitercoxal process of prosternum mucli shorter 

 (in (J the intercoxal process is variable in length, and sometimes 

 has the apex obtusely I'ounded, not bifid or excised). Anterior 

 tibite sliortei*, and without median process of lower side. Diinen- 

 sious: (^.Length 26, head across eyts 5, prothorax 7-7 x 6-8; elytra 

 14-5 X 7, across lateral proce.s.ses 9-5: Q. length 24-26, head across 

 eyes 5-1, prothorax 6-5 x 6-7, elytra 15*8 x 9 mm. 



Brithvsternum nodosum, n.sp. 



^. Elongate, robust, Igevigate. Elytra with a wide lateral 

 plica on each side, extending obliqut^ly upwards and backwards 

 from lateral border just before apical curve. Prosternum with 

 a larsre nodule on each side a little behind anterior margin and 

 with its outer margin touching episternal suture; intercoxal part 

 wide, flat, deeply and roundly excised at hase, the sides of this 

 excision produced backwards to form two obtuse prominent 

 horns. Anterior legs unarmed; iiiteriiiediate femora with a long 

 horn projecting at right ajigles from lower side. Black, nitid. 



Head large, convex (6 mm. across eyes), front lightly and 

 widely bi-impressed between antennae; eyes small, convex, not 

 inclosed at base; subocular ridge well developed. Labrum longi- 

 tudinally sulcate in middle, emarginate; angles rounded. Labial 

 palpi stout; penultimate joint short, with four or five setae on 

 anterior margin; apical joint a little longer than penultimate, 

 thick, truncate, narrowed to base, arcuate on outer side : max- 

 illary palpi with penultimate joint very short, triangular; apical 

 joint similar to that of labial but not narrowed to base or 

 arcuate on outer side. Prothorax longer than broad( 10 x 7 ■9mm ), 

 convex (disc subdepressed, nitid, with faint transverse striolse); 

 base and apex of about equal width (6'2 mm); sides almost 

 parallel in inidille, very lightly narrowed posteriorly; a light 

 sinuosity about lomni. before base; anterior margin sinuate- 

 truncate; anterior angles strongly advanced, ohtuse at apex; base 

 truncate; basal angles decidedly produced backwards in a short 

 obtuse prominence; lateral border thick, lightly reflexed, a little 



