PHYSOKHLNUS.— ANCHASTUS. 389 



resembles P. distigma, var. sericeus, but is a little less elongate, the thorax is more 

 closely punctured, and the elytra are more parallel, with the margins feebly serrate at 

 the apex. 



7. PhysorhillUS longicornis. (Tab. XVII. figg. 12, d; 12 a, antenna.) 



Elongate, somewhat fusiform, moderately convex, shining, thickly clothed with fine yellowish pubescence ; 

 black, the head pale flavous, the elytra, except at the base in some specimens, brownish-testaceous, the 

 abdomen rufo-testaceous, the antennas and legs piceous, the femora sometimes obscure testaceous. Head 

 thickly punctured ; antennas rather slender, extending to beyond the middle of the elytra in the male, 

 a little shorter in the female, joint 3 slightly longer than -2, the two together very much shorter than 4. 

 Prothorax transverse, rapidly and obliquely narrowing from a little before the base to the apex, the sides 

 parallel behind ; the hind angles acute, obliquely unicarinate ; the surface thickly, finely punctate. 

 Elytra moderately elongate, rapidly narrowing from the base, the apical margins finely denticulate ; some- 

 what thickly, finely punctate and obsoletely striate, the sutural stria fine but distinct. Beneath thickly 

 punctured ; the median dilated portion of the posterior coxal plates sharply angulate behind. 



Length 9^-11, breadth 2|-3 millim. ( J $ .) 



Hal. Gutemala, Cerro Zunil 4000 to 5000 feet (Champion). 



Five specimens, from the vicinity of the coffee-plantation of Las Nubes, on the 

 Pacific slope. P. longicornis differs from all the described species of the genus in its 

 elongate, comparatively slender antennae, these organs extending to beyond the middle 

 of the elytra in the male sex. It resembles P. sturmi in colour, but differs from that 

 insect in the unicarinate hind angles of the thorax, the less parallel elytra, the apical 

 margins of which are denticulate, &c. 



8. PhysorhillUS Stellatus. (Tab. XVII. figg. 13, $; 13 a, hind angles of 

 prothorax.) 



Physorhinus stellatus, Cand. Monogr. Elat. ii. p. 391, t. 3. fig. 6 l . 



Hab. Panama, Volcan de Chiriqui (Champion). — Colombia 1 . 



This handsome species is not uncommon in Chiriqui. It may be known from the 

 allied forms by the three spots on each elytron, and by the unicarinate hind angles of 

 the thorax, the usual long supra-marginal carina being almost entirely obliterated. In 

 the nearly related P. sexnotatus, Steinh., from Colombia, the small additional spot on 

 each elytron is placed at the middle of the base, and the hind angles of the thorax 

 are bicarinate. 



ANCHASTUS. 



Anchastus, Leconte, Trans. Am. Phil. Soc. n. ser. x. p. 459 (1853) ; Candeze, Monogr. Elat. ii. 



p. 397 (part.). 

 Brachycrepis, Leconte, loc. cit. p. 460 ; Kiesenwetter, Naturg. Ins. Deutschl. iv. 2, p. 349. 

 Crepidotritus, Leconte, Class. Col. N. Am. p. 167 (1861). 

 Monelasmus, Candeze, Monogr. Elat. iv. p. 332 (1863) (part.). 



Anchastus, as adopted here, includes the majority of the species referred to it by 



