64 Natural History Bulletin. 



space very convex, supra-antennal tubercles very large, angu- 

 late externally; frontal ridge strong, feebly notched in the 

 middle; labrum with the lateral angles acute, transverse. 

 AntenncB as long as the head and prothorax together, formed 

 like those of E. spini/er. Elytra, across the high shoulders 

 slightly wider than the prothorax, sides more arcuate, disk 

 more convex, more nearly quadrate compared with E. spin- 

 ifcr. Abdomen as wide as the elytra, sides straight, parallel, 

 carinse on the two basal segments more distant, parallel, and 

 three-fourths as long as the segment. Legs slender and 

 rather long. The 3 characters resemble very much those of 

 E. spinifer, except that the fourth and fifth segments are 

 emarginate posteriorly for their entire width. 

 Habitat. South Carolina, Georgia. 



E. interruptus, Lee. Form more robust, shoulders 

 broader, pubescence not dense. Color, rust red. Length 1.4 

 to 1.6 mm. Plate XL, Fig. 108. Plate XII., Fig. 122. 



Head large, eyes large, tempora as long as the eye, arcu- 

 ately convergent, occiput not sinuate nor impressed, frontal 

 margin straight, sharp, fovese large, in a line with the middle 

 of the eye, connecting sulcus deep, parallel to the sides, 

 broader and arcuate behind the frontal margin, inclosed space 

 very convex, smooth. Sides, external to the sulcus, some- 

 what punctured, lateral frontal tubercles strong. AntenncB 

 not quite as long the head and prothorax together, first joint 

 larger than the second; third to eighth joints much narrower 

 than the second, equal in width, gradually more transverse; 

 ninth longer, nearly twice as wide, obconical, truncate at the 

 base; tenth of the same form, larger; eleventh slightly wider 

 than long, annulate near the acute apex. Prothorax widest 

 before the middle, where it is arcuately rounded, and slightly 

 sinuate anteriorly, sides, toward the base, nearly straight, con- 

 vergent; near the lateral foveas they are imperceptibly sinu- 

 ate; the basal angles are rounded; disk convex, minutely 

 punctulate, with a small central fovea; basal sulcus one-fourth 

 from the base, deeply arcuate, lateral foveee large and deep. 



