438 CARABTDiE VROM TROPirAL AUSTRALIA. 



widely sinuate on each side: border narrow, rather widely re- 

 flexed at posterior angles. Elytra widely oval (3-8 x 2-7 mm.); 

 base emarginate in middle; shoulders rounded: apex lightly 

 excised at suture, inner angles obtuse, outer angles rounded off: 

 striae finely punctate; interstices lightly convex on disc, third 

 bipunctate; border narrow, decidedlv reflexed towards base. 

 Length, 7; breadth, 2-7 mm. 



Hab. — Northern Territory. Type in National Museum, Mel- 

 bourne. 



A single specimen is in the National Museum, Melbourne, 

 ticketed "King River, N.T.; W. McLennan: 4.1.16; caught in 

 tent," Allied to N. morosus SI., but differing by size larger: 

 femora black ; prothorax proportionately smaller ^vith wider 

 borders, pronotum with whole surface densely and coarsely punc- 

 tate, &c. Cymindis crassiceps MacL, which is a species of Noto- 

 tarns, is not available for comparison, but A^. puncticoUis does 

 not agree with the description, e.g., head not "entirely and 

 closely covered with long strioles," pronotum not " with small 

 punctures and fine transverse striolse." 



Tribe Helluonini. 

 Helluodema brunneum, n.sp. 



Parallel. Ferruginous-brown. 



Head as in U. u7iicolor Hope, as wide as prothorax (2-6 mm. 

 across eyes). Prothorax longer than broad (3 x 2-6 mm.), nar- 

 rower at base than apex, widest before middle, hardly narrowed 

 to apex, lightly angustate to base; sides very lightly rounded, 

 lightly sinuate to base ; surface punctate. Elytra parallel 

 (6-5 X 3-5 mm.), strongly striate; interstices convex, biseriately 

 punctate. Length, 12-14; breadth, 3-2-3-5 mm. 



Hab. — Northern Territory. Type in National Museum, Mel- 

 bourne. 'J'wo specimens have been examined, ticketed "Flooded 

 area King R., N.T.; W. McLennan; 24.12.15"; one of these 

 was presented to me from the National Museum, and is in my 

 collection. H. brunneum differs from H. unicolor Hope, (which 

 has also been found at East Alligator River, N.T.) by its reddish- 

 brown colour, legs ferruginous; prothorax more elongate, less 

 rounded on sides, less decidedly narrowed to base. 



