192 BOARD OF AGRICULTURE. 



tapering behind ; the elytra broader than the prothorax, the anten- 

 nae and legs very long, and are large handsome beetles, often gaily 

 ornamented. They fly in hot days about woods and timber. 

 Orlhosoma cylindricum flies into houses at light in the evening. 

 Prionus, and allies, are large, dull colored, flattened beetles, which 

 fly in the evening. The larva is broad and flattened, the head can 

 be drawn in the prothorax farther than usual. It forms cocoons of 

 the chips it makes. Asemum flies in hot days, often in great 

 numbers. 



Cerambyx, and allies, have the antennae very ^^^ ^ 



long, and are highly colored. They are found 

 in trunks of trees, or flying clumsily among the ^ ^fllx ^ 

 leaves. Glytus speciosus, bores in the locust. .2»V 



Saperda Candida, (Fig. 23.) is the apple tree borer. 

 A species of Staphylinus is, in Europe, parasitic 

 upon one of this genus. Slenocorus puiaior, the 

 oak pruner, severs the twigs of that tree, by eat- 

 ing the wood under the bark, which the wind 



breaks off". 



Leptura and the neighboring genera, narrow rapidly at the hinder 

 portion of their bodies, the antennae are rather short, and they 

 occur on flowers, such as Spiraea, &c. Ehagium lineatum has a 

 flatted larva which can be found under the bark of pines, in large 

 cells formed of its chips. Desmoceres palliafus, the " Purple cloak," 

 is found boring in the pith of elders. 



Ghrysomelidce. The insects of this family have hemispherical or 

 oval convex bodies, with small heads sunken in the thorax, and 

 live in all their stages on the leaves of plants. The larvte have 

 thick bodies, the rings composing it are very convex, and above 

 marked with tubercles and thickened deposits ; they are often gaily 

 colored. 



Donacia, which approaches the Cerambycidai in its elongated 

 body and long antennce, lives as a larva in the stems of aquatic 

 plants ; the pupa is found in silken cocoons attached to the roots 

 of the submerged plants. Lema trilineata, which closely resembles 

 the squash beetle, devours the leaves of the potato. Cassida, or the 

 Tortoise beetle, is round, depressed, and yellow. Its larva is broad 

 and flattened, with lateral ciliated filiaments, and its abdomen is 

 produced into a tail which it holds loaded with its excrement, over 

 •its back for purposes of concealment and defence. Hispa is a leaf 



