s.»ne Auilraliun (Jinculitjiiiil;«\ KJl 



from all otlitrs of tlic allied genera, by the alxloiiiiiial 

 tuljercie. Soiue spetimens resemble some of I), roucinua, 

 I), tiii/rorariti, and J), famelira. It ban been refei red to 

 Diethiisa on account of its compact form and dense elotbinj?. 

 Tbe elotbin<Tf on tbe under surface is wbite, and on llie lcji;s 

 wbifc or in parts pale ocbreons. On tbe protborax tbcre is 

 usually a larj^e sooty patcb in tbe uiid>lle, ocbreous scab's at 

 tbe sidi's of same, and tbcn wbite ones. On tbe elytra tbe 

 ocbreous scales arc in tbe majority, but tbcrc are nnmi'rous 

 spots or fasciie of sooty scales, and almost equally numerous 

 ubite spots. On tbe female tbe s(joty spots are sometimes 

 entirely absent, on such specimens tbe majority of tbe scales 

 on tbe up[)er surface arc somcwbat golden, mixed wilb sjjota 

 of white. 



Diethusa mctasternalis, sp. n. 



S . Reddish castaneous. Clothed with scarlet and strami- 

 neous scales on upper surface, under surface mostly with 

 white scales, but with a conspicuous line of golden setie. 



Rostrum ratber long, thin, and parallel-sided ; on basal 

 Ijalf witii coarse punctures in lines, eLsewbere with smaller 

 but clearly defined ones. Scape thin, the length of funicle, 

 inserted one-third from apex of rostrum, lirst joint of 

 funicle about as long as sceoml and third combined ; club 

 ratber laigc and wide. Protliorax lightly transverse ; with 

 dense, partially concealed punctures. Klijlra subeordate, 

 base strongly trisinuate ; with rows of large, partially con- 

 cealed punctures ; interstices wide, with dense, normally 

 concealed punciures, the lateral ones, comniencing with the 

 seventh, more or less distinctly ridged along middle; suture 

 acutely carinated. Mctastemum and ba^al segment of 

 abdomen with a deep sulcus containing the line of goMcn 

 s( tie ; apical segment with a wide shallow impression. 

 leinora stout and strongly dentate. 

 Length 4—1^ mm. 



? . Differs in being rather more robust, rostram decidedly 

 longer, thinner, aiul* smoother, with snuiUer and sparser 

 j)uncturcs, antenme inserted not so close to apex of rostrum, 

 metasternuni and abdomen not suleate in midillc, and with- 

 out the line of setie, apical segment not impressed, and ft)ur 

 front tibia; with the apical hook to each commencing at the 

 summit of the apical slope, instead of more than halfway 

 down the same. 



lld/j. New South Wales : Ourimbah and Sydney (G. f^. 

 Bn/f/ii/), Sydney (//. If. Cox). 



