24 Natural History Bulletin. 



cence long, not dense. Length, 1.7 mm. Plate X., Fig. 89. 

 Plate XII., Fig. 135. 



Head convex, vertex roof-shaped, cristate at the top, smooth, 

 interocular fovea2 deep, round, nude, circumambient sulcus 

 conspicuous, margin broad, flat, strongly punctured, w^ith the 

 lateral edge carinate; the 6 has the frontal margin arcuate- 

 triangular, continuous with the lateral border, notched at the 

 apex, overhanging the clypeus, which is separated from the 

 frontal margin by a deep, transverse excavation, and rises 

 from the middle of the base of the labrum as a three-sided 

 truncate prism with the median side concave, curved upwards; 

 the sides of the clypeus are angular, the upper external angle 

 retuse, in appearance as lateral horns. Antcnnce half as long 

 as the entire margin, first joint cylindrical, thicker than the 

 succeeding ones, roundly emarginate at the tip above for 

 the genuflexion with the second joint, which is of the same 

 width as the succeeding seven, obconical; third to eighth 

 globular; ninth, thicker, transverse; tenth four times as thick 

 as the ninth, globular, not perceptibly flattened on the lower 

 surface and with a circular fovea near the base; eleventh nar- 

 rower than the tenth, ovate, acute, obliquely impressed 

 from the middle on the outside. Palpi yellow, last joint fusi- 

 form as long as the two basal joints of the antennce. Pro- 

 thorax slightly wider than long, widest before the middle, 

 where it is acutely arcuate, anteriorly convergent, posteriorly 

 very slightl}' sinuate; the base is very little wider than the 

 neck, median sulcus deep, abbreviated near the neck, ending 

 on the posterior fourth in a deep fovea, from which point the 

 transverse sulcus branches out arcuatel}' to the irregular 

 lateral fovea?; the basal elevated lobes are limited anteriorly 

 by the transverse sulcus and pointed, each with a punctiform 

 fovea in the middle; the discal carina are interrupted near the 

 sulcus ; lateral sulcus short. Elytra ver\' convex, punctulate, 

 one-half longer than the prothorax, sides strongly arcuate, 

 sutural Hnes close, straight, base tri-foveate, discal lines shal- 

 low, short, or absent. Abdomen narrower than the elvtra at 



