154 



smaller, abdomen gently convex, tibiae straigliter, the hind 

 pair longer and not so suddenly narrowed beyond the middle. 



Hah. — New South Wales: Richmond River (A. J. 

 Coates). 



Of the two specimens before me, the female has the ros- 

 tral carina uncovered throughout, in the male it is uncover- 

 ed only on the apical half. The hind tibiae of the male appear 

 to be obtusely dentate at about their middle. 



Mandalotus arcuatus, n. sp. 



Male. Blackish : appendages reddish. Densely clothed 

 on both surfaces with pale, muddy-grey scales ; with short, 

 stout setae, longer, sparser, and less depressed on elytra than 

 on prothorax. Front tibiae with long but sparse cilia. 



Rostnim with carina more or less concealed by clothing. 

 Antennae rather thin. Frothorax flattened, moderately trans- 

 verse, sides strongly and regularly rounded ; median line 

 absent ; with transverse granules or interrupted carinae, more 

 or less concealed by clothing. Elytra conjointly arcuate at 

 base ; with large, round punctures the width of interstices, 

 but appearing much smaller through clothing, interstices re- 

 gular. Abdomen with two basal segments very feebly con- 

 cave in middle. Legs stout, especially front femora; coxae 

 widely separated, front tibiae strongly curved at apex. 

 Length, 2^ mm. 



Female. Differs in having- the prothorax narrower and 

 elytra wider, abdomen gently convex and front tibiae 

 straighter. 



Hah.—^ew South Wales: Rooty Hill (E. W. Ferguson). 



In appearance like a small Polyphrades, and the sexes 

 differ in much the same way, but the claws are separated at 

 an angle of about 45 degrees. 



Mandalotus trisinuatus, n. sp. 



Male. Reddish-brown, appendages paler. 



nostrum with carina very feebly or not at all traceable 

 through clothing. Antennae rather thin. Prothorax mode- 

 rately convex and transverse ; sides strongly rounded : median 

 line absent ; with large transverse granules or interrupted 

 carinae. Elytra trisinuate at base ; with large round punc- 

 tures, the width of, or wider than, interstices, but more or 

 less concealed: alternate interstices raised. Abdomen with 

 two basal segments gently concave. Legs stout; front coxae 

 rather widely separated, middle coxae not quite so widely sepa- 

 rated ; front tibiae rather strongly curved at apex, hind pair 

 inflated and distorted at apex, and subdentate at basal third 

 internally. Length 3 mm. 



//</6.— Victoria: Bright (C. French). 



