BY THE REV. T. BLACKBURN. 325 



gnlose pnnctulato, latitudme majori pone medium posita, disco 

 medio carina brevi nitida oniato ; elytris punctulato-striatis, 

 puncturis sat quadratis, interstitiis (squamis rasis) sat con- 

 vexis setulis raris vix conspicuis instructis, interstitiis 5° 6° 

 que postice conjunctis sat fortiter nodulosis. 



[Long. 3, lat. 1 line. 

 The squamosity is so even and dense as almost to conceal the 

 sculpture. The general resemblance is to a feebly marked 

 example of D. maculata from which the much less rugulose pro- 

 thorax (which is at its widest distinctly behind the middle), the 

 rostrum evidently more slender and elongate (it is longer than the 

 prothorax), the short well defined nitid carina on the centre line 

 of the prothorax and the manifestly stronger nodosity at the apex 

 of the 5th and 6th elytral interstices will at once distinguish the 

 present species. The carina on the prothorax furnishes a distinc- 

 tion from all the other species of Desiantha known to me. 

 Port Lincoln, S.A. 



Desiantha obscura, sp.nov. 



Oblonga ; nigra ; antennis (clava excepta) tibiis tarsisque 

 rufis ; squamulis subtilibus setulisque pallidis suberectis ves- 

 tita ; rostro sat nitido minus elongate ; prothorace oblongo 

 minus subtiliter confertim sat rugulose punctulato ; elytris 

 punctulato-striatis, puncturis sat quadratis ; interstitiis con- 

 vexis, interstitiis 5° 6° que postice conjunctis vix nodulosis. 



[Long. 4, lat. 1^ lines. 

 Extremely like the specimens of D. nigra with elytra not pro- 

 duced at the apex, but differs in the rugulose puncturation of its pro- 

 thorax and in its elytra being at their widest immediately behind 

 the base, whereas the elytra in D. nigra are narrower at the base 

 and widen gently to about a third of their length. As in D. nigra 

 the squamosity is very inconspicuous, so that the general appear- 

 ance is much blacker than in the other species of the genus. D. 

 obscura differs from D. 7iigra, silacea, and (judging from the 

 description) caudata in having a slight nodosity near the apex of 



the elytra ; it is probably much like Brexius lineatus, Pasc, but 

 22 



