216 



its apex ; on the prothorax the markings are obscurely defined ; 

 but it is probable that they are not constant. The three- 

 jointed club may be indicative that the type is a female; each 

 ramus is about the length of the apical spur of the front tibiae. 



Odoxtotoxyx ruficeps, n. sp. 



Black; head, legs, antennae and palpi red, parts of under- 

 surface obscurely diluted with red. Upper-surface glabrous, 

 except for marginal fringes ; under-surface, pygidium, and legs 

 with long pale hair, denser on metasternum than elsewhere. 



Head with moderately dense, sharply-defined punctures, 

 rather small at base, larger in front. Clypeus semicircular, 

 slightly concave, margins lightly ujDturned at sides, more 

 strongly in front, hind suture curved backwards to middle : 

 punctures near suture much as behind it, but sparser in front. 

 Antennae nine-, club three- jointed and small. Prothorax 

 about once and one-half as wide as long, sides strongly rounded 

 and narrower at apex than at base, front angles produced 

 and subacute, hind ones o-entlv rounded off and slisfhtlv more 

 than right angles; punctures much as on head but less 

 crowded. Scutellum impunctate posteriorly. Elytra feebly 

 dilated posteriorly, apex widely rounded ; strongly striate, 

 with shallow punctures in the striae, the interstices with 

 scattered punctures, about as large as those on prothorax. 

 Pygidium with dense and minute punctures. Front tibiae 

 with two strong teeth and a very small one; basal joint of hind 

 tarsi shorter than second, of the others longer than second; 

 each claw with a fairly large basal appendix, and a whitish 

 membrane. Length, 1(H mm. 



Hob. — New South Wales : Hunter River. Type (unique), 

 in Macleay Museum. 



Distinguished from brunneipennis by being more robust, 

 the prothorax and elytra black, apical tooth of front tibiae 

 more curved, the second larger, and the third smaller (almost 

 vanishing), the appendix to each claw (the sole character 

 distinguishing Odontotonyx from. Nosphisthis) is rather large 

 but less sharply defined than in brunneipennis, and the mem- 

 brane is somewhat smaller. There is a vague remnant of a 

 median line on the pronotum. 



Platydesmus castaneus, n. sp. 

 d ■ Bright castaneous with a slight iridescence, head 

 slightly darker than prothorax. Upper-surface glabrous, 

 except for conspicuous prothoracic and elytral fringes; under- 

 surface with rather sparse, irregularly distributed, golden 

 hairs. 



