April, 1S44.J 45 



latter slightly indented each side near the base ; elytra with punctured strioe, 

 sprinkled with black. Length 3^ lines : breadth 2 ; > lines. 



Body reddish-brown. Head obscurely brown, flat, deeply punctured. La- 

 brum short, obtusely emarginate. Thorax piceous, the sides pale ; punctured ; 

 an indentation each side, near the basal margin, and a slight impression on the 

 middle, near the base. Scutel black, forming an oblong triangle, with a few 

 scattered profound punctures. Elytra reddish-brown, sprinkled with irregular 

 black spots; region of the scutel immaculate; punctate-striate ; alternate in- 

 terstitial lines slightly elevated behind. Antennas, palpi, and feet, dark-brown. 

 Pennsylvania. 



Hydrophilus, Fabr. 



H. ovalis. Black, oblong-oval; antennae and palpi piceous. Length 15 

 lines. 



Body black, with a greenish tinge, oblong-oval. Head with irregular im- 

 pressed punctures each side, on the front and before the eyes; orbits punctured. 

 Clypeus deeply emarginate. Antennae, and palpi piceous. Thorax with im- 

 pressed punctures near the anterior angles; a series of punctures each side, 

 and a few each side before the middle, near the anterior margin. Elytra with 

 four series of punctures, of which the third is abbreviated anteriorly, and the 

 fourth double; lateral margins finely and closely punctured. Pectus bifid. 

 Postpectus with minute yellowish hairs. Sternum canaliculate before; 

 posterior half with a slightly impressed line. Beneath black; venter with an 

 obsolete rufous spot on each segment. Pennsylvania. 



This species somewhat resembles the H. triangularis of Say, but may be 

 readily distinguished from that insect by the more oval form of its body. 



Coprobics, Latr. 



C. obtusidens. Black ; clypeus not profoundly emarginate at tip ; teeth of 

 the tibias short, obtusely rounded. Length 9 lines : breadth 6 lines. 



Body deep black. Clypeus not profoundly emarginate at tip, tip but slightly 

 reflected ; lateral edge, from the tip to beyond the middle, subrectilinear. 

 Antennae and palpi reddish-piceous, club of the former dull rufous. Elytra 

 striated; strice impunctured ; interstitial spaces with numerous small, elevated 

 points. Teeth of the anterior tibias proportionally short, obtusely rounded ; 

 the posterior tooth rather small, and widely separated from the others. Penn- 

 sylvania. 



A very rare insect. It is larger than the C. volvens, F., and differs from it 

 in colour, being of a deeper black, and in the denticulation of the anterior tibia?, 

 the terminal tooth being more remote from the two anterior ones, leaving a 

 wider space which is occupied by four small roundish tubercles instead of two, 

 as is the case in that species. It is also distinguished from the volvens in 

 having the clypeus less rounded, less deeply emarginated, and much less acutely 

 angulated at each end of the emargination. 



Pandarus, Meg. 

 P.? brunneus. Reddish-brown, hairy ; eyes black ; antennas and feet dull 

 rufous. Length rather more than 2 lines. 



Body oval, a little oblong, somewhat depressed ; dark reddish-brown ; covered 



