68 Natural History Bulletin. 



E. LINEARIS, Lec. Form more parallel, pubescence coarse, 

 color uniformly brown; surface punctulate. Length 1.3 to 

 1.6 mm. Plate XL, Fig. 107. 



Head trapezoidal, wider than long, eyes large, tempora 

 slightly arcuate, convergent, base sinuate, with a median 

 impression, frontal margin straight; supra-antennal tubercles 

 strong, angularl}^ rounded, occipital foveee far apart, in line 

 with the posterior Hmits of the eyes; sulcus parallel to the 

 sides, where it is deepest, wider toward the frontal margin; 

 from this point it presents a surface slanting upwards to the 

 triangularly elevated vertex. Antennm nearl}'^ as long as the 

 head and prothorax together, first joint rather robust; second 

 much smaller, third to eighth equal, transversely globular; 

 ninth twace as wide as long; eleventh as wide as the tenth, and 

 one-half longer than wide, annulate near the acute tip. Pro- 

 thorax slightly wider than the head, widest before the middle, 

 sides slightly sinuate anteriorly, very convergent, the middle 

 evenly arcuate, behind nearly straight; neck not half as wide 

 as the middle, base two-thirds of the total width, disk broadly 

 convex, median sulcus fusiform, widest and deepest near the 

 center, connected with the transverse doubly-arcuate sulcus; 

 the lateral foveas are large and deep. Elytra rather fiat in- 

 side of a triangle limited by the base and two lines drawn from 

 the shoulders to the posterior end of the suture, the remaining 

 triangles being more convex and declivous; across the shoulders 

 they are as wide as the prothorax, and near the tip are one- 

 fifth wider; sides divergent, nearly straight behind; discal lines 

 abbreviated before the middle, sutural lines deep, interval very 

 slightly dilated behind the middle, the three basal foveee rather 

 deep. Abdomen broadly margined, sides of the first three 

 segments parallel; carin^e of the first and second segments 

 short, including one-fifth of the total width. The under sur- 

 face of the head and abdomen more strongly punctured. 

 3, last ventral lozenge-shaped, punctate, carinate in the middle. 

 Habitat. East of the Mississippi river. 



