494 Memoirs on the Coleoptera 



Pacomes n. gen. 



In this remarkable genus the body is subparallel, convex, feebly 

 sculptured and apparently with scarcely any special modifications 

 due to sex. The beak is rather long, feebly but subevenly arcuate, 

 gradually and very slightly tapering, with small decussate mandibles 

 and separated from the head by a narrow impression, this being 

 wholly distinct from the deep irregular subbasal constriction of 

 distortus and ramifer. Antennae in the type rather long and slender, 

 slightly beyond the middle, the scape moderately long, but only 

 extending to the inferior subbasal constriction, the funicular joints 

 all more or less elongate and swollen at apex, the first not quite as 

 long as the second but thicker, the second not quite equal to the 

 next two, the outer joints with oblique coronse of long oblique 

 bristles, the club elongate-suboval, narrow, as long as the three 

 preceding joints, its first segment elongate-obconic, fully three- 

 fifths the total length and gradually more sparsely pubescent 

 basally, the remainder conoidal, with moderate sutures. Prester- 

 num long before the coxae, evenly convex in transverse section and 

 separating the coxae by less than a third their width, truncate at 

 base, the short intercoxal suture deep. Prothorax elongate, conical 

 in distal half, not evidently tubulate and with the truncate basal 

 margin broadly and feebly arcuate medially, the scutellum moderate, 

 quadrate and free. Elytra transversely impressed or exarate at 

 base, coarsely exarate at apex, with just visibly tumid humeri and 

 feeble subapical umbones, the striae diversified. Pygidium well 

 exposed, flat, vertical, semicircular and fully twice as wide as long. 

 Legs long and slender, the anterior femora longer than the others, 

 apparently in both sexes; tarsi dilated, the claws small. The four 

 species now before me are as follows: 



Anterior femora bifurcate at apex, the lower ramus more slender, curved and 

 spur-like 2 



Anterior femora not bifurcate, but with an acute tooth at apical fourth; upper 

 surface and elytral striation virtually as in distortus 4 



2 — Body sparsely squamose above, more densely at the sides of the prothorax, 

 the under surface' more or less closely squamose, the hind body finely and 

 sparsely, except the densely scaly met-episterna; elytral striae very coarse 

 and deeply impressed. Integuments somewhat shining, piceous, the elytra 

 more nearly black; beak (cf 9) slender, rather long but evidently shorter 

 than the prothorax, moderately and loosely punctate, constricted only 

 moderately and solely on the under surface at basal third, not separated 

 from the head by trace of impression; antennae at apical third to two-fifths, 

 the first segment of the club only a little more than half the length; pro- 

 thorax very long, four-sevenths to two-thirds longer than wide, the sides 

 parallel and feebly arcuate in about basal half, thence converging and slightly 

 arcuate to the feebly constricted apex, which is evidently more than half as 

 wide as the base; punctures rather strong but sparse, the smooth biabbre- 

 viated median line feebly subprominent; scutellum small, very free and 



