81 



A narrow, fragile species, in many respects close to the 

 preceding one, but at once distinguished by the lateral mar- 

 gins of the prothorax; these are suddenly and strongly dilated 

 somewhat nearer the apex than base, so as to appear like a 

 large obtuse tooth on each side ; on the preceding species 

 the margins are somewhat dilated near apex and thickened 

 there, but the increase is neither sudden nor strong. A second 

 specimen differs from the type in having the dark parts of the 

 femora almost black. 



Heteromastix pulchripennis, n. sp. 



$ ■ Black; elytra deep purple. With short, dark 

 pubescence. 



Head with two small, transverse, interocular impressions. 

 Antennae moderately thin, extending to about middle of 

 elytra, second joint more than half the length of third, 

 eleventh distinctly longer than tenth. Prothorax almost 

 twice as wide as long, sides and base distinctly margined, the 

 former almost parallel. Elytra parallel-sided to near apex; 

 with dense and sharply defined punctures of moderate size. 

 Length, 3 mm. 



Hah. — Queensland: Coen River (W. D. Dodd). Type 

 (unique), T. 11869. 



In my table would be placed with H . nir/er, but the elytra 

 are purple, prothorax more parallel-sided, and antennae no 

 longer than in its female. 



Heteromastix fragilis, n. sp. 



d • Dark piceous-brown, elytra, under-surface of head,, 

 legs, and three basal joints of antennae obscurely pale. With 

 short, ashen pubescence. 



,Head vaguely impressed between eyes. Antennae long 

 and thin, third joint twice the length of second, and slightly 

 stouter than the following ones. Prothorax about twice as wide 

 as long, hind angles widely rounded, sides slightly dilated to 

 near apex, and somewhat thickened at widest part. Elytra 

 long and thin; with dense, small, and somewhat rugulose 

 punctures. Length, 2 mm. 



Hob. — Northern Queensland (Blackburn's collection). 

 Type, I. 11873. 



A minute, dingy, fragile species. Its prothoracic margins 

 are slightly paler than the disc, and so the species could hardly 

 be referred to B or BB of my table, but regarding it as belong- 

 ing to BBB of that table, it would be distinguished from the 

 species placed there by its minute size; it is in fact smaller 

 than any species noted in that table, but there are others 

 equally small now before me. 



