18 prioniDjE. 



13. Prionus dimidiatus, n. s. B.M. 



P. fuscus, elytris basi ad mediam partem rude punctatis, apice 

 lsevi, minute punctato, pilis plurimis brevibus. 



Head punctured, the middle and back part with many scattered 

 yellowish hairs. Thorax scarcely angled in front ; the sides pro- 

 duced into a spine or rather a sharp angle ; the back punctured 

 and vermiculated, with some scattered yellowish brown hairs ; the 

 fore and hind margins ciliated. Scutellum roughly and irregularly 

 punctured, the margin smooth ; under side of thorax thickly- 

 covered with longish yellowish grey outstanding hairs. Elytra 

 with the basal half roughly and deeply punctured and of a 

 darkish brown, the other half smooth, minutely punctured, of a 

 paler brown, and with short yellowish grey hairs ; under side of 

 abdomen brown, with scattered, short, adpre'ssed hairs ; antennae 

 with the joints, after the second, compressed, somewhat dilated 

 on the outside at the end, and covered with very short adpressed 

 hairs. 



Length 13^ lines. 

 Hub. Australia. 



14. Prionus mordax, n. s. B.M. 



P. capite, thorace, scutello et elytrorum basi rugoso-punctatis, 

 tibiis omnibus subcurvatis. 



Head very rugose and grooved down the middle ; mandibles 

 roughly punctured, gradually hooked to the tip, which is very 

 sharp and smooth; inner edges toothed and crenated; a deep 

 furrow across the front of the head before the insertion of the 

 antennas ; antennae with the thud and following joints somewhat 

 scabrous, fifth and following joints with many longitudinal cari- 

 nulae, thud joint equal to the seventh and eighth taken together. 

 Thorax in front projecting in the middle over the vertex, sinuated 

 on each side of the front angle, margined in front with ferru- 

 ginous cilia ; sides with two teeth, exclusive of the anterior and 

 posterior angles; the posterior of these teeth the longest and 

 somewhat bent back; the upper surface of thorax is thickly 

 and coarsely rugosely punctured. Scutellum rough, the elytra 

 bulging on each side of it. • Elytra widest about the middle, 

 rugosely punctured on the shoulders, and at the base near the 

 scutellum ; three indistinct longitudinal keels on each elytron ; 

 the surface of the elytra delicately granular. Legs long, femora 

 compressed, tibiee somewhat curved outwardly, slightly dilated at 

 the end. 



Length 18-| lines. 

 Hob. E. Indies (Coll. Warwick). 



