BY W. W. FROGGATT. 29 



covered with irregular confluent punctures, with irregular spines 

 along the outer edges ; the elytra faintly furrowed with two 

 shallow lines on the sides, and all covered with fine wavy lines 

 which give it a rugose appearance, smaller and finer towards the 

 apex ; femora and tibia armed with stout spines. 



Phoracantha tricuspis, Newman, Entomologist, 1841, p. 3. 



Larva white, stout, with a broad head, small legs, segments 

 regular, rounded at the anus ; mouth })arts and jaws black, 

 projecting ; head large, rounded, and arched over the jaws, square 

 at apex, forehead with furrow in centre, rugose at apex, sloping 

 down, hollow and smooth in middle and rugose below above 

 moutli ; thoracic segments narrow, with an angular depression in 

 the centre of each ; abdominal ones regular, first four narrow, fifth, 

 sixth, and seventh rounder and broader, all with an impressed 

 elongate square in the centre, eighth segment veiy narrow, smooth 

 and shiny, anal segment; large, smooth, shining, rounded at apex. 



The larvse attack the dead or dying timber of several of the 

 Eucalypts, and after feeding under the bark in the earlier stages 

 penetrate into the centre of the tree, gnawing out large flat 

 chambers several inches in diameter; in these they remain for 

 several years. 



The beetle is one of the largest of the genus, and is generally 

 found hiding under loose bark on the stems of large trees. 



Uracanthus triangularis, Hope, Trans. Zool. Soc. i. p. 108, t. 15, 

 f. 4. 



Larva bright canary yellow, long and slender, segments rounded, 

 broad, and deeply constricted, lightly covered with reddish hairs, 

 thickest on head and anal segment ; mouth parts ferruginous, 

 jaws black, stout, and truncate ; head rounded in front, widest 

 behind, darkest at base, smooth in centre, forehead creamy-white, 

 with fine parallel striations; legs ferruginous, very small; thoracic 

 and abdominal segments deeply impressed by a parallel line which 

 divides each segment into two rounded warty lumps on the upper 

 side, on the under side smooth, with slight corresponding marks 



