Coleoptera, hy C. 0. Waterliouse. 69 



subquadrate ; ligula broad, narrowed at the base, with its 

 anterior angles rather prominent ; labial palpi acuminate at 

 the apex. Maxilla} small, rather short and broad ; the inner 

 lobe small, fringed with soft hairs ; the terminal part of the 

 outer lobe short and broad, fringed on its inner and apical 

 margins with long, dense, rather stiff hairs. Mandibles tri- 

 angular, very acute at the apex, with a small tooth beyond 

 the middle. Presternum very short ; the intercoxal process 

 narrow, arched ; coxal cavity closed behind. The anterior 

 coxa? somewhat transverse, moderately prominent ; tibia? elon- 

 gate, a little wider at the apex ; outer margin serrate, with a 

 slightly curved hook at the apex at the insertion of the tarsus. 

 Intermediate coxa? very slightly separated, transversely ovate. 

 Metasternum rather short, its episternum very narrow. Pos- 

 terior coxa? transverse. Posterior tibia? elongate, a little 

 widened at the apex, denticulate at the truncate apex, without 

 spurs. Tarsi four-jointed *, the claw-joint a little longer than 

 the three basal joints united. Pronotum separated from the 

 prothoracic episterna by an acute margin. Scutellum distinct. 

 Elytra costate. 



This genus is very closely allied to Eutomus, but the struc- 

 ture of the antenna? is quite different ; the anterior coxa? are 

 a trifle more prominent ; the metasternum shorter. In form. 

 it is even more like Etedona than Eutomus is. 



The pubescence on the head of Gh. Walkeri is very sug- 

 gestive of Xylophagous affinities, but the position of the genus 

 is, I think, certainly with the Cioidce. 



Cherostus Walkeri, sp. n. 



Oblongus, bene convexus, fusco- vel rufo-piceus, opacus ; antennis 

 pedibuspue rufo-piceis ; capite confertini punctato, antice leviter 

 concavo, aureo-pubescenti, antice cristato ; thorace transverso, 

 couvexo, antice paruin angustato, confertim fortiter punctato, 

 rugoso ; elytris parallelis, costatis, costis acutis, angustis, nitidis, 

 interstitiis rugosis. 



Long. l|-lf lin. t 



* If there be a fifth it is entirely within the tibial cavity. 

 t An allied species from Port Bowen, E. Australia, has been for some 

 years in the British Museum. I propose to call it 



Cherostus Simpsoni. 

 C. Walkeri valde affinis, ferrugineus, opacus ; capite convexo, confertim 



punctato, antice nitido, calvo ; thorace confertim fortiter punctato ; 



elytris costatis, interstitiis rugosis. 

 Long. 1^ lin. 



A trifle smaller than C. Walkeri, without pubescence on the head, and 

 with the costse of the elytra so narrow that they do not appear shining. 



