394 TERTIARY INSECTS OF NORTH AMERICA. 



enlarging regularl}' from base to apex, where it is nearly twice as large as 

 at the base. Thorax very coarsely and not very distantly punctate, as is 

 also the scutellum. Hemelytra fusco-fuliginous, coarsely punctate in serial 

 rows along the course of the veins. The femora rather stout, the middle 

 pair being but little more than twice as long as broad. Abdomen with the 

 sides scarcely ampliated, and a premarginal pallid line. 



Length, 6.15"""; antenn;^, 2.25"°'; breadth of thorax, 1.85'"'": middle 

 of abdomen, 2.15"'". 



Named for Mr. G. R. Bechler, topographer of the Hayden Survey 

 during its work in Colorado and elseAvhere. 



Florissant. One specimen. No. 13664. 



10. CTEREACORIS gen. nov. {uripea, m' pi?). 



Head broader than long, rounded subti'iangular, with the moderately 

 large eyes broader than the apex of the prothorax ; the front prominent and 

 rounded; antenna? considerably shorter than the head iind thorax together, 

 the basal joint stout, surpassing the front of tiie head, the second and third 

 joints about equal in length, slender, less than half the width of the basal 

 joint, the apical joint slightly the longest, incrassate to the stoutness of the 

 ba.sal joint. Thorax more than twice as broad as the head, the posterior 

 decidedly shorter than the anterior lobe, with straight and parallel sides 

 and truncate anterior and posterior margins ; the anterior lobe tapering 

 rapidly with straight oblique sides, the anterior margin gently emarginate, 

 the whole nearly three times as broad as long. Middle femora very much 

 shorter than the breadth of the body at their insertion. Corium of heme- 

 lytra barely surpassing the middle of the abdomen. Abdomen broad and 

 rounded. 



A single species is known. 



Ctereacokis primigenus. 



Head, thorax, scutellum, and corium of hemelytra black, antenna; 

 blackish fuscous, abdomen dark fusco-fuliginous. Head smooth, the 

 antennae, especially the apical joint, a little roughened. Thorax and scu- 

 tellum coarsely punctate. Corium of hemelytra the same, the punctse fol- 

 lowing mostly the course of the veins ; membrane clear. Abdomen 

 obscurely and coarsely punctate. 



