Zoological Society. 71 



gin behind, produced into a slight process directed backwards ; a 

 strong crested ridge over each eye, at the end directed outwards ; 

 antennae, palpi and legs rufous, antennae blackish at the base ; jaws, 

 excepting at the end and on the edges (where they are smooth) roughly 

 punctured : head, thorax and elytra, at the base, somewhat roughly 

 punctured, the elytra more dehcately pimctured towards the end. 

 Hab. Mexico. 



P. Atys. 



Head midway between the eyes and the hind margin, with a small 

 wide spine ; a slight, crested, straight ridge over each eye, the space 

 between slightly grooved ; antennae thickish. In colour it is of a 

 dark pitchy brown ; the apex of the elytra somewhat ferruginous ; 

 legs pitchy brown ; tarsi and tips of tibiae ferruginous ; palpi of a 

 clear ferruginous : sculpture much as in last. 



Hab. Andes of Peru. 



P. Iphis. 



Deep black, coarsely punctured and rugose ; antennae at the end?, 

 palpi, tibiae at apex and tarsi reddish ; head midway between the eyes 

 and hind margin, with a strong wide spine on each side ; head with 

 the two keels over the eyes short and straight, the space between 

 them deeply grooved. 



Hab. Mexico. 



Calocomus morosus. 



Antennae ferruginous, black at the base ; 13-jointed, very strongly 

 serrated on the outside, the terminal joint deeply notched, nine at 

 least of the terminal joints with the outer edge elongated at the tip : 

 head, thorax, scutellum, abdomen and legs pitchy black ; head, tho- 

 rax and scutellum thickly punctured ; elytra thickly and finely y)unc- 

 tured, the punctures of the base coarser ; elytra wide, shorter than 

 the abdomen, ferruginous, in some places darkish brown. 



Hah. Bolivia. From the Collection of Mr. Bridges. 



This makes the fourth species of Calocomus, a genus which seems, 

 Uke some of the other Prionidce, to be very variable in the number of 

 joints in the antennae ; the type C. Besmarestii has eleven joints ; this 

 species has thirteen ; while the Calocomus Lycius, and C. Kreuckelyi, 

 described by M. Buquet, have no less than twenty-two. 



Pyrodes tenuicornis. 



Head and thorax deeply, coarsely and irregularly punctured, washed 

 with golden green, in some lights tinged with a deep purplish rufous ; 

 jaws golden green, tips and edges pitchy ; antennae with the first joint 

 flattened above, golden green except at the end, which is bluish 

 green ; third joint much elongated, as long as the fourth and fifth 

 taken together ; the first six joints punctured, base of the seventh 

 punctured, tip of the seventh joint and the whole surface of the ter- 

 minal four grooved. Elytra varied with green and purplish red, 

 much depressed, the margin and shoulders lively green ; scutelhini 

 notched at the end, slightly grooved down the middle, and with a 



