30 PROCEEDINGS OF THE NATIONAL. MUSEUM vol. 6S 



In general form this species resembles aspena Say, but it is 

 narrower, slightly more cuneiform, the eyes not so widely separated 

 from each other on the top, and the markings on the pronotum 

 and elytra more irregular in shape. 



PROBATIUS DOMINICUS. new species 



Female. — Form broadly elongate, subparallel, and rather strongly 

 convex, uniformly dark reddish-brown, and rather densely clothed 

 with brownish and whitish pubescence; beneath more reddish than 

 above ; mandibles reddish-brown at base, but becoming black toward 

 the tips; palpi brownish-yellow. 



Head slightly wider than long and feebly convex in front, deeply 

 depressed between the antennal tubercles, which are strongly ele- 

 vated and nearly contiguous at the base, the surface densely clothed 

 with moderately long recumbent whitish pubescence concealing the 

 punctures, and with a narrow longitudinal groove extending from 

 the epistoma to occiput: eyes rather large, moderately granulated, 

 deeply emarginate, and separated from each other on the top by one- 

 half the width of the emargination of the eyes in front, the lower 

 lobes slightly longer than wide, and the upper lobes narrow. An- 

 tennae about two times as long as the body, pale brown or luteous, 

 with the joints slightly darker apically, rather densely clothed with 

 fine whitish pubescence, and ciliate beneath with long erect hairs; 

 first joint slender, subcylindrical, feebly expanded toward apex, ex- 

 tending nearly to base of pronotum, and subequal in length to the 

 fourth joint, which is slightly shorter than the third. 



Pronotum two times as wide as long, and feebly narrower at base 

 than apex; sides slightly rounded, and with a large obtuse tooth 

 just behind the middle ; surface slightly convex, nearly even, with a 

 narrow transverse basal and apical depression, a few coarse irregu- 

 larly placed punctures along base and apical margin, and densely 

 clothed with recumbent whitish pubescence, except for a longitudi- 

 nal glabrous spot at middle, and more or less ornamented with dark 

 brown pubescence at the sides and with a longitudinal arcuate vitta 

 of the same color on each side of the middle. Scutellum elongate 

 triangular, and narrowly rounded behind. 



Elytra nearly two times as long as wide, and slightly wider than 

 the pronotum; humeri feebly developed: sides slightly attenuate, 

 more strongh^ so posteriorly, the tips separately broadly truncate, 

 arcuately emarginate, with the exterior angle long and acute, and 

 the interior one obtusely rounded ; surface regularly convex, and 

 each elytron feebly tumid near base, moderately, coarsely, and ir- 

 regularly punctate, rather densely clothed with recumbent brownish- 

 yellow pubescence, the pubescence more whitish along base and on 

 a broad transverse obsolete zigzag fascia at apical third, and with 

 numerous erect, stiff hairs over the surface. 



