324 



slightly greenish or golden one. The ocular lobes are 

 unusually feeble and the emargination of the prosternum less 

 pronounced than is usual in the genus. 



Mandalotus tenuicornis, Lea. 

 Numerous specimens of this species have been taken at 

 Robe by Messrs. Feuerheerdt and Seeker. Their clothing 

 varies from that of the types to a dingy greyish-white or slaty- 

 white, more or less conspicuously mottled with sooty or 

 sooty-brown. On the males the sides of the prothorax, near 

 the base, are often distinctly wider than the base of the 

 elytra. 



Mandalotus hoplosternus, n. sp. 



c? . Dull reddish-brown, some parts more or less deeply 

 infuscated. Densely clothed with muddy-brown scales, thickly 

 interspersed with stout setae. 



Rostrum short, median carina traceable through clothing. 

 Scape rather long and not very stout ; second joint of f unicle 

 distinctly longer than first. Prothorax rather strongly 

 transverse, sides strongly and almost evenly rounded, median 

 line narrow, deep, and almost continuous throughout ; with 

 large, subvermiculate, obtuse granules, readily traceable 

 through clothing. Elytra somewhat angular, extreme base 

 slightly narrower than widest part of prothorax ; with several 

 feeble subtubercular elevations about middle and base and 

 on apical slope, but with a conspicuous tubercle on each side 

 oehind shoulder; with rows of large punctures not much 

 smaller on apical slope than about base. Prosternum with a 

 conspicuous keel between and in front of coxae. Abdomen 

 with basal segment gently depressed in middle. Front coxae 

 widely separated ; front tibiae triangularly produced at inner 

 apex, hind ones strongly narrowed before and strongly dilated 

 at apex. Length, 6 mm. 



Hab. — Victoria: Melbourne (J. W. Mellor). Type 

 (unique), I. 5571. 



The prosternum armed in front associates this species 

 with armipectus in the latest table of the genus, ( 8 ) but on 

 that species (which is also a much smaller one) the armature 

 is like a semi-double transverse ridge ; on the present species 

 it is an obtuse, but very conspicuous, longitudinal one. In 

 general appearance its upper-surface is strikingly like that of 

 mcisus, simulator, and niger. The prothorax is almost 

 entirely dark, the elytra are dark, but in places conspicuously 

 diluted with red ; but the colour of the derm is not to be 

 relied upon in Mandalotus. On the elytra the setae are 

 usually pale and confined to the elevated parts. 



(8) Ante, 1914, p. 298. 



