BY W. MACLEAY, ESQ., F.L.S. 151 



as in the last species, but witli the grooves less deeply marked. 

 Elytra brownish yellow. Abdomen as in the last species. Legs 

 yellow. 



Sub-family PiestiDjE. 



257. — ISOMALUS PLANICOLLIS. n. sp. 



Length 2 lines. 

 Black, nitid, very flat and smooth. Head large, square and 

 fitting to the thorax. Thorax triangular, the apex towards the 

 abdomen. Elytra longer than the breadth, of a piceous hue and 

 with a puncture in the middle of each elytron. Abdomen with 

 the apical edge of the second and third segments slightly red. 

 The legs, antennae, palpi, and mandibles are piceous. 



Sub-family Omalid^. 

 258. — Omalidm Gatndahense. n. sp. 

 Length 1 line. 



Black, subnitid. Head and thorax very finely punctured, the 

 latter transverse, truncate in front and behind, and slightly 

 rounded on the sides. Elytra more closely punctured, and of a 

 dark brown colour. Abdomen broad and rounded at the apex. 

 Legs red. Antennee brown. 



PSELAPHID^. 



259. — Tmesiphorus Kingii. n. sp. 

 Length 1| lines. 

 Brown, opaque, and roughly punctured. Antennae with the 

 ninth and tenth joints large, and oblong, and with the eleventh still 

 larger and round. Head with a deep groove in front between the 

 antennte, and two large punctures on the forehead. Thorax 

 gibbous. Elytra red and finely punctured, with a deep longitudinal 

 impression at the base on each side midway between the suture and 

 humeral angle. Abdomen finely punctured, bordered laterally 

 and bicarinated, the carina not extending beyond the second 

 segment. 



