Coleoptera, hy C. O. Waterliouse. 69 



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

 anterior angles rather prominent ; labial palpi acuminate at 

 the apex, Maxillai 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. Prosternum very short ; the intercoxal process 

 narrow, arched ; coxal cavity closed beliind. The anterior 

 coxaj somewhat transverse, moderately prominent ; tibiaj 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 coxse very slightly separated, transversely ovate. 

 Metasternum rather short, its episternum very narrow. Pos- 

 terior coxje transverse. Posterior tibite 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 

 ])rothoracic episterna by an acute margin. Scutelluui distiact. 

 Elytra costate. 



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

 ture of the antennae is quite different ; the anterior coxjb are 

 a trifle more prominent ; the metasternum shorter. In forui 

 it is even more like ELedona than Eutomus is. 



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

 gestive of Xylophagous affinities, but the position of the genus 

 IS, I think, certainly with the Gioidce. 



Cherostus Walkeri^ sp. n. 



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

 pedibuspue rufo-piceis ; capita confertim punctate, antice leviter 

 concavo, aureo-pubescenti, antice cristate ; thorace transverse, 

 convexo, antice parum angustato, confertim fortiter punctato, 

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

 interstitiis rugosis. 



Long. 11-1 1 Un. 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. I5 lin. 



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

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



