DESCRIPTIONS OF NEW SPECIES. 113 



peculiar ; small scattered granules are visible, equally distributed ; 

 the rest of the surface is nearly smooth at the base, but gradually 

 becomes granulated, until at the tip the granules are quite dis- 

 tinct, though the difference between them and the larger scattered 

 granules is quite obvious. The body beneath is nearly smooth 

 with a few long yellow hairs near the edge of the prothorax 

 and on the epipleurse ; a few wrinkles are also seen near the 

 anterior coxae. 



This species indicates a different section of the genus from any 

 heretofore described. 



The singular arrangement of the epipleural limits in the differ- 

 ent sections of this genus seems to demonstrate the necessity of 

 uniting the Praocini with the Coniontini. In this case the tribe 

 Branchini should be suppressed, unless the short gular fissure is 

 sufficient to separate it. 



352. Eu. laevis. Ovalis convexus, niger subopacus, impunctatus, 

 thorace angulis posticis retrorsum productis ; elytris a basi ultra medium 

 paulo ampliatis, et lateribus fere rectis. Long. -56 ; lat. -32. 



Cape San Lucas, Lower California; Mr. Xdntus. Less rounded 

 in outline than Eu. reticuJatus, with the sides of the elytra almost 

 straight from the base to beyond the middle, and nearly parallel, 

 though very slightly wider behind. The upper surface is dull 

 and entirely without sculpture ; the under surface is also dull, 

 and marked with only a few wrinkles on the under part of the 

 prothorax near the coxre. The elytra are suddenly declivous at 

 the sides,. not margined as in Eu. reticulatus, but the epipleurae, 

 as in that species, are well defined, and suddenly dilated at the 

 base. It therefore indicates a separate section of the genus inter- 

 mediate between Discodemus and typical Eusattus. The anterior 

 tibiae are obliquely prolonged at the outer angle, which is rounded 

 at the tip. 



CONIONTIS ESCH. 



353. C. lata. Ovalis robusta convexa, piceo-nigra, subopaca, capite 

 thorace elytrisque sequaliter punctulatis, thorace latitudine duplo brevi- 

 ore, a basi antrorsum fortiter angustato, lateribus rotundatis, angulis 

 posticis magis productis ; subtus nitida punctulata, prothorace versus 

 coxas longitudinaliter rugoso, antennis pedibusque piceis. Long. '46 ; 

 lat. -24 long. -40 ; lat. -20. 



Island of San Clemente, California ; Dr. J. G. Cooper. Of the 



December, 1865. 



