of the Paussida, and notice of a fifth species, 461 



sides of the posterior part are broader in front, equal in 

 breadth to the fore-part, and furnished in front with a 

 double prominence shewing a short sulcus between. In the 

 centre, between the sides, are two succineous prominences, 

 divided by a longitudinal sulcus. The elytra are polished, 

 obsoletely erose-punctate, broader towards the apex, are 

 margined all round with yellowish castaneous, and a piceous 

 black patch occupies the disk, which is much darker than in 

 rufitarsis. Instead of short tufts of hair, four on each side, 

 and two at the apex, as in rufitarsis, the elytra are margined 

 with long recurved spinous setae, sometimes double, of which 

 there are seven on each side, and a double row, with four in 

 each row, at the apex of each elytron. The podex is piceous 

 and protruded. The abdomen and under side are cas- 

 taneous and glossy. 



The tibiae and tarsi are castaneous, the femora piceous, 

 and much enlarged towards the extremities, especially in 

 the intermediate pair, and are deeply and closely punctate. 



The last joint of the labial palpi is very long and subulate ; 

 the antepenultimate joint of the maxillaries is even more 

 inflated in the form, and disproportionate to the two terminal 

 ones than in rufitarsis. 



This interesting Beetle was taken in an excursion which 

 we made to the Dhoon, or valley of Dehra, at the foot of the 

 sub-Himalayan range, between the Ganges and Jumna, by 

 Dr. J. F. Bacon, a zealous collector and field-naturalist, 

 and the possessor of an extensive cabinet. I have named 

 the species after him. It was captured on the 14th August, 

 1844, in a sweeping-net among grass and bushes, at the same 

 time as a specimen of Paussus pilicornis, 



b. Antenarum clava postice excavata. 



2. — Paussus nauceras* 



P. fusco-castaneus, prothoracis lateribus antice angulatis, 

 parte postica elongatiuscula, tenuiori, picea. Elytris thora- 



