ART. 22 NEW CEEAMBYCID BEETLES FISHER 6 



confluently punctured, and distinctly pubescent, each elytron with 

 two longitudinal costae, and the pubescence distinctly shorter, basal 

 joints of antennae scabrous, and the prosternum finely, confluently 

 punctured. 



This is the first sjDecies of the oriental tribe Xixuthri to be found in 

 America. All the other described species of this tribe are indigenous 

 to the East Indies, It is the second species of oriental Cerambycidae 

 to be recorded from the West Indies, the other species being Bato- 

 cera ruhus Linnaeus. 



MONODESMUS ATRATUS, new species 



Male. — Broadly elongate, strongly flattened above, rather strongly 

 shining, and uniformly black above and beneath. 



Head strongly transverse, somewhat uneven, and deeply, trans- 

 versely concave in front, strongly, deeply concave between the an- 

 tennal tubercules, which are widely separated and rather strongly 

 elevated, the surface nearly glabrous, coarsely, deeply, confluently 

 punctate, and more or less rugose; eyes large, strongly convex, 

 moderately emarginate, and separated from each other on the top 

 by nearly twice the width of the upper lobe. Antenna one and one- 

 fourth times as long as the body, finely, densely punctate, vaguely 

 pubescent, the joints flattened, and strongly, longitudinally carinate; 

 first joint short, cylindrical, feebly expanded toward apex, one-half 

 as long as the third joint, which is distinctly longer than the fourth ; 

 eleventh joint distinctly longer than the tenth. 



Pronotum one and one-half times as wide as long, subequal in 

 width at base and apex, and widest at middle ; sides parallel, sinuate, 

 and armed on each side at middle with a very long, acute tooth; 

 disk uneven, with two large, round, coarsely punctured gibbosities, 

 arranged longitudinally on each side of the middle, and a smooth, 

 elongate gibbosity in front of the scutellum ; surface coarsely, irregu- 

 larly, confluently punctate, and sparsely clothed with long, incon- 

 spicuous hairs. Scutellum elongate-triangular, rounded at apex, and 

 coarsely punctate. 



Elytra five times as long as pronotum, and at base distinctly wider 

 than pronotum at middle; sides nearly parallel, feebly, broadly con- 

 stricted behind middle, the tips conjointly, broadly rounded, with 

 a small, distinct tooth at the sutural angles; disk moderately convex; 

 surface coarsely, deeply, confluently punctate from base to apex, 

 clothed with a few semierect, inconspicuous hairs, and each elytron 

 with two vague, longitudinal costae, extending from base to apical 

 fifth. 



Abdomen beneath finely, densely granulose, finely, sparsely punc- 

 tate, and rather densely clothed with long, semierect, whitish hairs ; 



