62 TEKTIAEY EnYNCHOrHOKOUS COLEOPTERA. 



EUDOMUS (ev6o/uo?), gen. nov. 



Body stout, less than twice as long as broad. Rostrum as long as the 

 Ik •:!(!, ] iictry st( >ut, equal, the tip broadly rounded. Eyes strongly transverse, 

 oval, siibai'uininate, very large, as long- as the lateral breadth of the I'ostruin. 

 Scrobes strongly arcuate, ])assing beneath the eyes. x\ntenna' short, club 

 not at all stout, long-oval, the apical as large as the two preceding joints. 

 Thorax broader and higher than long, ^^•ith prominent subangnlate ocular 

 lobes, l-'.lvrra much liroader than the thorax at base, with rounded humeri 

 and parallel sid<\s. Second abdominal segment longer than the two follow- 

 ing, its anterior suture strongly arcuate ; intercoxal proress l)road, tapering, 

 truncate at tij). Metasternal side 2:)iece nioderateK' wide, ex])anded ante- 

 riorly by a narrow ti-iangular side process directed inwardly; mesosterual 

 side pieces sul)equal, the episternura separated from the epimeron by a sin- 

 uous suture so directed that the lateral outer margin oi' the epimeron is 

 coiisideralily longer than its })Osterior margin, the opposite of what is found 

 in Eudiao-Qo-us. 



This genus eA'identK' falls in the I'l'omecopini in the vicinity of ImkII- 

 agogus, but difi'ers i'roui it as froui ;dl li\ing genera in tlu; much mliuster 

 foi-m and larger size, as well as in most of the details of structure given 

 above. 



Two species occur, both at Florissant. 



Table of the sjweics of Endomux. 



Elytra consideralily Jess than twice as loug as the rest of the body robustus. 



Elytra almost twice as long as the rest of the body pingtiin. 



EUDOMUS ROBUSTUS. 



PI. Ill, Figs. 2, 4. 



Head, including rostrum, and thorax tinely an<l denselv l)eaded, the 

 markings a little coarser and more })ronounced on the thorax than else- 

 where. Similar marking's occur on the under side of the thorax. The elvti'a 

 are considerably less than twice as long as the rest of the body, and have 

 punctured, sti'ongh- impressed stri;i?, the punctures l»eing circular or scarcely 



