458 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lo* 



Psammodius fimbriatus, new species 



Holotype oblong oval, moderately shining, piceous. Antennae 

 rufotestaceous. Head convex, closely strongly verrucose, occipital 

 area with a band of close, fine to moderate punctures above and be- 

 tween the eyes, smooth posteriorly. Clypeus widely, shallowly emar- 

 ginate, the angles sharply dentate each side, sides weakly arcuate and 

 reflexed ; genae very sparsely fimbriate, not prominent, broadly arcuate 

 in outline, smooth, with a small deep pit close in front of the eye. 

 Pronotum convex, width 1.4 mm., length 0.9 mm., all angles broadly 

 rounded, sides and base crenate, fimbriate with moderately long, stiff, 

 tapering, sharply pointed hairs, base weakly lobed medially, sides and 

 base distinctly margined except at middle of base; without transverse 

 grooves, surface with intermixed, close, very fine and moderate punc- 

 tures, the latter separated by less than their diameters, gradually 

 shghtly finer outward from disc and sparser laterally. Elytra as wide 

 as pronotum at base, width 1.75 mm., length 2.15 mm., base finely 

 margined, humeri not distinctly dentate, margins crenate, fimbriate 

 with moderately long, fine bristles, scattered bristles around apical 

 third also, expecially on ninth and tenth intervals, sides straight and 

 diverging over basal half then strongly arcuate and curving to apex; 

 striae fine, moderately deep, with fine punctures crenating edges of 

 the flat to very weakly convex intervals, intervals with widely scattered 

 irregularly spaced fine punctures usually near margins. Metasternum 

 somewhat depressed, rather short, ordy as long as two-thirds the \vidth 

 of posterior femur, smooth and shining at middle, short midline sharp 

 and deep over half the total length at middle, slightly roughened at 

 extreme sides. Abdominal segments shining, with scattered very fine 

 punctures at middle, slightly more numerous at sides and bearing very 

 short fine hairs, terminal segment with an anterior row of about 12 

 to 14 long fine hairs, segments very finely crenate in front, the last 

 segment more widely so at middle. Pygidium finely scabrous. An- 

 terior femur smooth, shining, a few scattered, very finely setigerous 

 punctures posteriorly and with a distinct anterior marginal line. 

 Middle and hind femurs smooth and shining with moderately close 

 scattered setigerous punctures along margin and a posterior row of 

 the same extending outward to the knee; posterior femur about twice 

 as wide as middle femur. Posterior tibia about twice as long as 

 apical width, spurs short, foliaceous, equal in length to first two tarsal 

 joints combined ; basal tarsal joint apically widened. Length 3.5 mm., 

 width 1.75 mm. 



Type: In collection of A. Martinez, Buenos Aires, Argentina. 



Type locality: "S. F. del Chipiriri," Province of Chapare, State 

 of Cochabamba, Bolivia, 400 m., Nov. 1953, A. Martinez. 



