77 



antennae shorter, thinner, with simple joints, and abdomen 

 not notched; on one of them its tip is flavous. 



Heteromastix mediofuscus, n. sp. Fig. 9. 

 d . Black; muzzle, prothorax, legs, two basal, and 

 three apical joints of antennae flavous. With short and 

 moderately dense pubescence. 



Head shining, and with two feeble interocular depres- 

 sions. Antennae moderately long, fifth and seventh joints 

 slightly dilated on upper side, the sixth conspicuously 

 dilated there, ninth joint longer than eighth, tenth and 

 eleventh distorted, closely applied together, and about 

 equal to the combined length of the seventh to ninth. 

 Prothorax about twice as wide as long, sides slightly dilated 

 and slightly thickened near apex. Elytra parallel-sided to 

 near apex; with dense and small, but sharply defined 

 punctures. Length, 35 mm. 



Hob. — Queensland: Mount Tambourine (A. M. Lea). 

 Type (unique), I. 11864. 



Apart from the antennae I cannot distinguish this 

 species from II. bicolor, but the sixth joint is conspicuously 

 produced on one side, although from some directions it 

 appears even smaller than the adjacent ones; in colour it 

 also approaches H. mirocerus, bat the fourth to sixth joints 

 of antennae of that species are very different. The third to 

 sixth joints are pale on the under-parts, and infuscated 

 above, the three following joints are almost black, the 

 eleventh is so closely applied to the tenth that it is difficult 

 to distinguish its junction with that joint; it appears to be 

 somewhat helmet-shaped, although not much like that of 

 H. gagaticeps. 



Heteromastix bispinicornis, n. sp. Figs. 10-12. 

 <3 . Black; prothorax, parts of under-surface of head, 

 legs (tarsi infuscated), and two or three basal joints of 

 antennae flavous. With very short pubescence. 



Head feebly impressed between eyes. Antennae moder- 

 ately long, two apical joints distorted. Prothorax almost 

 twice as wide as long, margined throughout, sides slightly 

 dilated to near apex. Elytra parallel-sided to near apex; 

 with dense and small, rugose punctures. Length ( $ , 9), 

 4-4*5 mm. 



9 • Differs in having the head smaller, antennae 

 shorter, thinner, and simple, and abdomen not notched. 



Hah. — Queensland: Mount Tambourine (A. M. Lea). 

 Type, I. 11865. 



