70 ORDER COLEOPTER&. 



Gonua casolimjs. ( Plate xii, 6g. 8.) 



Body thick, obtuse behind : clypeus round and entire before, hut famished with a single 

 notch in fronl of the eye, from which there is a depressed line running backwards, 

 and terminating at the base of the tubercles, the middle of which is much the most 

 prominenl and pointed. The front of the thorax rises into a strong serrated ridge, and 

 there arc two lateral rounded depressions : the pjmcta are fine, and the posterior part 

 is smooth, and marked with a Blight central furrow which does not reach the elytra. 

 Elytra stronglj furrowed, and punctate. The abdomen appears as if truncated. The 

 color is dark chestnut-brown : body beneath clothed with reddish brown hairs : the 

 margin of the thorax is ciliate. The dilatations of the tibia are similar to Battened 

 funnels : the tibia of the forelegs arc thick, and have four strong notches upon their 

 outer edges. Length one inch. 

 This beetle is common in Virginia and Maryland, hut 1 have not observed it in New- 

 York, though Cetonia and Phanaus, which accompany it there, arc not uncommon here. 

 This insect does not roll up a hall, hut makes a collection or heap of soft and fresh 

 manure, iu which the eggs are deposited. It penetrates quite deeply into the ground be- 

 neath the droppings in pastures and by the roadsides. 



Trogidae. 



Tins is a family embracing but a lew genera : they are ovate and gihbose, with iuflex 

 elytra. The head is deflexed, the thorax short and transverse, and the surface of the elytra 

 rough. The antenna' are nine- or ten-jointed, and the extremity is formed of three leaves 

 somewhal distant from each other : the labrum is coriaceous and exserted ; the labium is 

 concealed by the mention ; the mandibles are horny, and sometimes toothed. 



This family is allied to the Geotrupidje. The most reliable information is that they feed 

 upon carrion, or decaying animal matter, being found in the carcases of dead animals : 

 they have also been found in rotten wood, and at the same time they are known to inhabit 

 sandy places under ground. Some of the family are apterous. 



Genus TROX ( Fabr.). Scarabjetjs ( Linn.) 

 Antenna? ten-jointed ; body subovate, convex ; thorax rugous. 



Trox pokcatls. ( Plate xxiv, fig. iii.) 



Dull brown : clypeus rounded in front, and marked by a shallow transverse groove, 



angnlated in the middle, with small pointed tubercles on the line < f flexure ; thorax 



wideh grooved in the middle ; elytra traversed by a series of reticulated lines, forming 



a spe ( aes of network upon their surfaces and angles behind. Length half an inch. 



