186 



tlie characters of the dilated tarsi in the male. Their facies 

 is, however, different, owing to their shorter and more convex 

 form. 



iV". niger, sp. nov. Minus nitidus ; niger antennis pedibusque 

 picescentibus ; prothorace transverso, margiue antico pos- 

 tico latitudiue ?equali ; eljtris (stria suturali excepta) 

 hand striatis. Long. 1^ — 1| 1. 



The antenna? are slender and reach back considerably beyond 

 the base of the thorax ; the frontal impressions of the head are 

 very slight ; the thorax is rather more than half again as wide 

 as long, has no dorsal channel and is impunctate and in fx'ont 

 nearly truncate. The sides are considerably arched, the re- 

 flexed margin very fine and the hind angles rounded off, near 

 which there is a large impression on either side. The scutel- 

 lum is large but scarcely penetrates between the elytra. These 

 latter are nearly three times as long as the thorax, not very 

 convex, and are arched on the sides ; excepting some marginal 

 impressions near the apex, a faint costa just within them, a 

 puncture on either side behind, about where the third inter- 

 stice would be if it existed, and a sutural stria, there is no 

 trace of punctures or striae ; the surface, however, is not very 

 shining. The anterior and intermediate tarsi in the male are 

 moderately dilated, the basal three joints being about equal in 

 width ; the second is distinctly longest and is quite twice the 

 length of the fourth ; the first and third are about equal to 

 each other and are not much shorter than the second ; none of 

 them is transverse unless the fourth, which is scarcely so. The 

 hind tarsi are not much shorter than their tibi?e ; their first 

 joint is a little shorter than the second and third together, the 

 fourth short, the fifth nearly equal to the first. In general 

 appearance this species reminds one of JBlechrits, though of 

 course the thorax is wider. 



Port Lincoln. 



iV^. gracilis, sp. nov. Sat nitidus ; niger ; antennis pedibusque 

 piccescentibus ; prothorace transverso, antice quam postice 

 vix latiori; elytris obsolete striatis, striis latera versus 

 deficientibus. Long. 1^ — If 1. 

 Very closely resembles the preceding, but is smaller, a little 

 narrower, and more shining. There is a single well defined 

 puncture on the centre of the surface of the head. The thorax 

 is scarcely so transverse as in JV. niger, is slightly more nar- 

 rowed behind, and has a depression all across the base, in 

 which the posterior impressions are included. The elytra are 

 striated, the sutural stria being well defined and two or three 

 striae besides being traceable which, however, become gradually 

 feebler as they recede from the suture and then cease alto- 



