14 ARKIV FÖR ZOOLOGI. BAND 14. NIO 11. 



gently roiuided and nowhere thickened; with submarginal 

 punctures. Elytra long, thin and parallel-sided; with dense 

 and sharply defined punctures of moderate size, becoming 

 smaller on tips. Length, 2,2 6 mm. 



Hab. — Queensland: Mount Tambourine, in October 

 (Dr. E. Mjöberg). Type (unique), in Stockholm Museum. 



In size and general appearance close to H. pusillior, but 

 prothorax with sides not dilated or thickened in front, ninth 

 joint of antennae the length of tenth, but slightly thicker, 

 longer than eighth and much shorter than eleventh; the 

 three apical joints are about as long as the five preceding 

 ones, on pusillior they are scarcely as long as the four pre- 

 ceding ones. The ninth joint is certainly thicker than the 

 adjacent ones, and a small part of its surface is shining, but 

 the difference is so slight, that the species could hardly be 

 regarded as allied to H. fusicornis, H. mcdonaldi and similar 

 species; so in my table^ would he ^\diGeåw\ih H.victoriensis, 

 from which it is at once distinguished by its much smaller 

 size. A variety of pusillus occurs on Mount Tambourine 

 that is as small as this species, but it has the typically 

 dilated and thickened prothoracic margins of that species. 

 At first glance the appendages appear to be entirely dark, 

 but the two basal joints of antennae and parts of the front 

 legs are obscurely paler than the adjacent parts. 



Heteromastix luridicollis Macl. — Two females, from 

 Mount Tambourine, with only the apical fifth of elytra black. 



Heteromastix flavifrons Lea. — A specimen, from Mount 

 Tambourine, agrees perfectly with the type of H. flavifroris, 

 except that the apical joint of antennae is less noticeably 

 incurved to one side. 



Heteromastix iiigriceps Lea. — Two specimens, from 

 Mount Tambourine, probably belong to this species, but differ 

 from the type in having the prothoracic margins rather thicker 

 near apex (but not suddenly and strongly increased or sub- 

 dentate, as in H, denticollis), and the elytra slightly dilated 

 posteriorly. 



Heteromastix castor Lea. — Glen Lamington. 



^ Loc. ciL, p. 131. 



