BY W. MACLEAY, JUN., ESQ. 193 



long as broad, and have seven indistinct ridges on each. The 

 apical pu.nctures are in the same position as in the other species. 

 The fore tibioe are acutely tridentate externally. 



There is one specimen of this species in the Museum. The 

 sculpture of the elytra, and the impressions on the forehead render 

 it easy of recognition. 



4. — SCARITBS JaCKSONIENSIS. 



Niger nitidus, capite transversim subimpresso, thorace sub- 

 quadrato, corpore subplano, elytris lasvibus apice utrinque 

 bipunctatis. 

 Long. 11 lin., lat. 3^ lin. 

 Hab. Lane Cove, Port Jackson. 

 The head in this species is also slightly impressed between the 

 longitudinal grooves, and is very slightly, if at all, corrugated. 

 The thorax is very slightly emarginate at the base, with longi- 

 tudinal foveee near the posterior angles. The elytra are smooth, 

 with the apical punctures small, the one nearest the apex being 

 the largest. The fore tibiae are bluntly tridentate. 



This species was presented to the Museum by Mr. M'Intosh, 

 of Lane Cove ; another insect from the same place also in the 

 Museum, differs so much from the one now described as to look 

 like another species, until, however, other specimens are procm'ed, 

 it will be impossible to judge with accuracy. 



5. — SCAEITES PLANIUSCULUS. 



Niger subnitidus planus, thorace subtransverso, elytris sub- 

 tilissime striolatis apice utrinque bipunctatis. 



Long. 11 lin., lat. 3| lin. 



Hab. Victoria River, Mitchell's Expedition. 

 The only known specimen of this insect is in the IMuseum. 

 It is the flattest of the genus, and is of a rather dull black. The 

 head is broad, and almost without wrinkles in front. The thorax 

 is broader than long, truncate in front, and slightly emarginate 

 at the base, with the posterior angles rounded. The elytra 

 present the appearance, under a powerful lens, of being covered 

 with a great many short longitudinal scratches, while the most 



