544 Goleopterological Notices, VII. 



The resemblance of this genus to Leptomastax is evident prin- 

 cipally in the elongate form and peculiar habitus of the body, in 

 the structure of the legs, hind coxas, metasternum and its para- 

 jjleurse, and in the mode of antennal insertion. In Ablepton the an- 

 tennfe are inserted in much larger and more perpendicular frontal 

 cavities, and the clypeus and labrum, as well as the mandibles, are 

 altogether different from the corresponding parts in Leptomastax. 

 Papusus differs from Clidicus not only in the much smaller size of 

 its species, Clidicus grandis being some 1 mm. in length, but appar- 

 ently in the more elongate second antennal joint and well devel- 

 oped eyes. 



1. P. macer n. sp. — Elongate, rather convex, shining, impunctate an- 

 teriorly, the elytra with regular and feebly impressed series of small shallow 

 punctures toward the suture, which become finer and confused toward the 

 sides; pvibescence fine, very short and decumbent on the head, coarser, subde- 

 cumbent, equally dense but more conspicuous on the prothorax, coarse, very 

 strongly inclined and recurved, moderate in length and abundance and longer 

 toward the sides and tip on the elytra, pale in color. Head triangular, as long 

 as wide, the sides toward base including the eyes parallel and evenly arcuate; 

 eyes at their own length from the base, which is broad, the constriction deep 

 above; neck }4 as wide as head; upper surface finely impressed along the me- 

 dian line from the antennse to the base; antennal prominences very small, the 

 cavities minute beneath them. Antennee }4 ^s long as the body, rather slender, 

 gradually and feebly incrassate distally, separated at base by about }4 the 

 maximum width, strongly geniculate, the basal joint slender, gradually nar- 

 rowed toward base, as loiag as the second, third and }4 of the fourth joints and 

 distinctly thicker, smooth, with decumbent pubescence; second distinctly 

 longer and just Aasibly thicker than the third, obconic, fully twice as long as 

 wide; third %, fourth }4y longer than wide; three to six gradually a little 

 thicker, constricted at base, obconic; fifth %, sixth %, longer than wide ; 

 seventh to tenth from as long as -wide to a little wider, more triangular, with- 

 strongly rounded sides; seven to elevenformingaA^ery indistinct club; eleventh 

 not as long as the two preceding, longer than wide, very obliquely and acutely 

 pointed at tip. FrotJiorax fully as long as wide, scarcely perceptibly wider 

 than the head, widest and strongly rounded laterally at apical fourth, the sides 

 thence strongly oblique and nearly straight to the base, which is rounded and 

 scarcely more than % as wide as the broadly arcuate apex; disk evenly and 

 moderately convex throughout, without trace of subbasal modification. Elytra 

 elocgate and subelliptical, widest near basal %, % longer than wide, 2)^ time, 

 as long as the prothorax and scarcely % wider, gradually more pointed apically, 

 the sides almost evenly arcuate ; humeri obsolete, the sides broadly rounding 

 and oblique to the base of the prothorax; disk not at all impressed or modi- 

 fied. Legs moderate in length, rather stout, the posterior longer and slender; 

 femora gradually clavate, the four anterior rather strongly, the posterior mod- 

 erately. Length 1.8 mm. ; width 0.55 mm. 



