AMERICAN COLEOPTEKA. 437 



Second and third joints of anterior tarsi together longer than the fourth. PI. 

 xiv, fig. 316. 

 Dark piceous or black, antennal club elongate, acuminate; elytral interspaces 

 without a row of setai. PI. xiv, fig. 30. 

 Lobes of third tarsal joint longer, fourth not projecting more than the length 

 of the third joint. Pl.-xiv, fig. 316. 



Oblong, tarsi slender, no sutural vitta Illiif lihiliN. 



Broadly oval, tarsi stout, a white sutural vitta OViiliK. 



Lobes of third tarsal joint short, the fourth projecting more than the length 

 of the third. 



Larger, scales not intermixed with fine ])ubescence intoriiiofliiis. 



Smaller, above finely pubescent, sprinkled with larger scales- ii mil iiliiM. 

 Legs ferruginous, antennal club less elongate, ovoidal (if entirely black, elytra 

 with rows of erect seta'). 

 Elytral intersjiaees without rows of setae. 



Densely and uniformly scjuamous ham il toil i. 



Pubescent above, apical part of elytra more or less rufous. 



Tarsi stouter, second and third joints about equal, fourth projecting 



scarcely more than the length of the third joint pil^io. 



Tarsi nior'^ slender, joints 1-3 gradually shorter, fourth long, ijrojecting 



nearly twice the length of the third ad^persiillis. 



Elytral inters])aces with a row of erect setai. 



Larger, oblong, prothorax less rounded on the sides, legs ferruginous. 



piiMilliis. 

 Very small, entirely blackish, oval, prothorax strongly rounded on the sides. 



pauxillus. 

 Second and third joints together, of anterior tarsi, shorter than the fourth ; an- 

 tennal club broadly oval, not acuminate, elytra with rows of sub- 

 erect setae. PI. xiv, figs. 31c, 30a con vcxicollis. 



C. iniitabilis n. sp. PI. xiv, figs. 30, 316. — Oblong oval, entirely black, 

 above sparsely clothed with larger, appressed, white scales, intermixed with small, 

 siiberect, piliform scales arranged in one or more irregular rows on the elytral 

 interspaces, underside clothed with whitish scales, which are rounded or oval on 

 the sterna, piliform on the abdomen. Beak long and slender, curved, striate and 

 punctured, squamous at the base; antennse slender, club, elongate-elliptic, acu- 

 minate. Eyes not entirely concealed in repose. Head convex, densely ])unctured, 

 front flattened or slightly coticave : ])rothorax wider than long, one-third wider 

 at the ba.se than at the apex, strongly rounded cm the sides, rather suddenly nar- 

 rowed in front, strongly and broadly constricted at the apex, apical margin ele- 

 vated, straight or nearly so, ocular lobes prominent, lateral tubercles small, trans- 

 verse, dorsal sulcus entire, well impressed throughout, disc densely and rather 

 finely punctured, each i)uncture bearing a coarse, scale-like hair, a line each side 

 and along the dorsal channel of pale scales; scutel small, glabrous. Elytra a 

 little wider at the base than the prothorax, oblong, a little narrowed behind, 

 slightly rounded on the sides, posterior callus with a grouj) of acute granules, 

 striae wide, well impressed, distinctly and closely punctured, interspaces some- 

 what convex, very rugose, a scutellar spot and short sutural line of white scales 

 more or less distinct; pygidium and underside densely punctured. Legs clothed 

 with squamiform pubescence, femora clavate. mutic. tibiie subparallel. tarsi slen- 



TRANS. AM. ENT. SOC. XXIII. DECEMBEE. 1896. 



