PH.3SDK0MUS. 67 



narrower, attenuated, but subincrassated near the apex ; the fourth 

 and fifth are of the same form as, but shorter than, the third ; the 

 sixth to the eleventh are shorter, more ovate, less truncate at the 

 apex ; the apical joint being acuminated : the whole are sparingly 

 clothed with fine pubescence, two or three longer and separate hairs 

 being discernible at the apex of each joint. 



Eyes large and globose, situated at the base of, and at the sides of 

 the head, distant, extending laterally somewhat beyond the anterior 

 angles of the thorax. 



Head short, transverse, narrower than the thorax, not produced in 

 front. 



Thorax transverse, broader than the head, anteriorly not emar- 

 ginate ; the sides are finely marginate, and produced in front of the 

 middle into a broad, well-defined obtuse angle, of the same form as, 

 but more transverse than, the thoracic angle in the genus Boicus ; the 

 surface is flattened throughout and subdepressed at the base. 



Scutellum almost obsolete, in the same plane as the elytra, im- 

 punctate. 



Elytra subparallel, slightly broader than the thorax, depressed, 

 rounded and not attenuated at the apex ; at the sides evenly 

 marginate, in P. Waterhousii finely punctate. 



Legs : the anterior femora tolerably robust, hardly incrassated. The 

 tibiae, are inflected downwards at their immediate base, and gradually 

 incurved though their whole length, slightly dilated near the apex. 

 The tarsi are broad ; the first joint sub triangular, and of the same 

 breadth as the apex of the tibia ; the second of the same form, but 

 more minute ; the third broader than the first, transversely trian- 

 gular, not bilobed: all three are densely clothed with a thick pubescence 

 on their under sides and at their margins. The posterior femora are 

 broadly incrassated and ovate, tapering gradually towards the apex. 

 The tibia (Tab. III. fig. 1 g) is of the same form as the anterior, 

 slightly incurved throughout, and gradually increasing in thickness 

 towards the apex ; the hinder surface (when viewed posteriorly) is 

 flattened and longitudinally marginate ; near the apex the outline of 

 this margination is slightly sinuate (not dilated into a tooth, as in 

 preceding forms), and extended to the extreme apex, so as to form 

 the socket for the insertion of the base of the tarsus ; this socket is 

 broadly truncate, terminating ultimately in two short claw-like teeth : 

 the surface is clothed sparingly throughout with a bristle-like rigid 

 pubescence. The posterior tarsus is attenuated; the basal joint is 

 narrow, subdilated towards the apex ; the second of the same form 

 as, but shorter than the first ; the third broad, subcircular ; the whole 

 of these three joints being clothed at their apex (marginally and at their 



f2 



6 



