442 TERTIARY INSECTS OF NORTH AMERICA. 



6. PROCYDNUS VESPERUS. 

 PI. 28, Fig. 15. 



Head tolerably large, rounded, broader than long, together with the 

 projecting eyes more than a third the width of the thorax. Thorax almost 

 or quite three times as broad as the middle length, the shape very much as 

 in the preceding species, with an equally broad but much deeper emargina- 

 tion of the front, the surface very finely, faintly, and densely punctate. 

 Scutellum less than two-thirds as broad as the thorax, considerably broader 

 than long, the pointed angulate apex extending less than half-way to the tip 

 of the abdomen. Hemelytra with a rather short punctate corium. Tibia; 

 heavily spined. Abdomen full and broadly rounded, scarcely longer than 

 broad. Color of body blackish brown, the hemelytra with the corium 

 blackish fuliginous, the membrane faintly infumated. 



Length, 4.5 mm ; breadth, 2 65. mm . 



Florissant, Four specimens, Nos. 70, 145, 2464, 5612. 



7. PROCYDSUS EATONI. 



A poorly preserved specimen represents this species, remarkable for its 

 very large and nearly circular head, which is half as wide as the abdomen 

 and scarcely broader than long, and is deeply embedded in the thorax. The 

 latter is shaped much as in the last two or three species, nearly two and a 

 half times as broad as its median length, the front deeply and broadly 

 eiuarginate to receive the head, the emargination very regular, considerably 

 more than half as broad as the thorax, and a third as deep as broad. Scu- 

 telluni broad and short, the angulate apex not at all less than a right angle, 

 reaching much less than half-way to the tip of the abdomen. The only 

 signs of punctuation, fine and dense, are on the broadly rounded abdomen, 

 which is considerably longer than broad. Other parts not clear. The whole 

 blackish brown. 



Length, 6.75 mm ; breadth, 3.6 mm . 



Named for one of the pioneers in American geology, Amos Eaton. 



Florissant, One specimen, No. 3153. 



