26 Mr. G. E.. Waterhoase on Coleopterous Insects 



slightly compressed joints ; tlie first joint is rather stouter than 

 the rest, and perhaps a trifle longer; the second and third joints 

 are short, but the third rather exceeds the second in length ; the 

 remaining joints are very nearly equal. There is an agreement 

 also in the form of the thorax, the length of which is about equal 

 to the breadth behind ; the fore-part contracted, and of the same 

 width as the head ; the posterior angles produced posteriorly, and 

 acute ; the antennal groove beneath, short, and confined to the 

 anterior part of the prsesternum, which has its point bent inwards. 

 The mesosternum has a small hollow with raised margins in front. 

 The metasternum is produced posteriorly so as partially to cover 

 the trochanter. In all these characters the Galapagos insect ap- 

 pears to me to agree with the type of the genus Physorhinus ; but, 

 on the other hand, it differs in having the head rather shorter, 

 presenting when viewed from above very nearly a semicircular 

 outline, but slightly inclining to a conical form, — whilst Germar 

 says of the genus Physorhinus, the head is longer than broad ; and 

 it differs also in having the terminal joint of the tarsus (as it 

 would appear from the figure) rather longer, so that although 

 the basal joint is long, it is not quite equal to the other four taken 

 together, as it is said to be in Physorhinus. The claws are slender 

 and simple, and the tarsi very hairy. 



Section CLAVICORNES. 



Dermestes vulpinus, Auct. 

 Cory net es rufipes, Auct. 

 From James^ Island. 



Section PALPICORNES. 



Tropisternus {lateralis, Fab.). 

 Philhydrus ? 



Section LAMELLICORNES. 



Oryctes galapagoensis. Oryct. castaneus nitidus ; capite punctate, ca- 

 rina transversa tri-emarginata obsito ; ante oculos lobis subtrigonis 

 productis ; clypeo producto, antice recurve, constricto, subemar- 

 ginato ; thorace punctis distinctis remotis, impresso ; elytris latis, 

 punctis minutissimis remote adspersis, rugisque indistincte notatis ; 

 stria punctarum apud suturam. — Long. corp. 10 lin. ; lat. thora- 

 cis 4^ lin. ; lat. elytrorum 5f lin. 



Head with large irregular scattered punctures ; these most nu- 

 merous, and confluent, on the fore-part; the vertex flat and smooth; 

 the sides produced into an obtuse angle immediately in front of 

 the eyes ; the fore-part with a distinctly elevated ridge, which is 

 most prominent in the middle, and has a deep notch ; it becomes 

 gradually less prominent towards the sides, but is there produced 



