
510 THE INSECT WORLD. 
the sap flows only with difficulty into the withered organ, and 
cannot suffocate the young larvee.” 
Scolytus, Hylesinus, and Bostrichus, which are connected with 
the weevils, hollow out galleries between the wood and the 
bark of different trees, when in the larva state, and devour the 
leaves in the adult state. Fig. 557 represents the Hylesinus pini- 
perda. The Scolyti are sometimes so numerous in the forests, 
that the trees are tatooed all over by the larve. In 1837, they 
were obliged to cut down, in the Bois de Vincennes, twenty 
thousand feet of oak trees, aged from thirty to forty years, com- 
pletely ruined by the ravages of the Scolytus, whose larva is here 
represented (Fig. 558). The genus Tomicus, hairy, and of a tawny 
colour, are a terrible plague to pine forests. In 1783, in the 




cooee 

SSS 

Fig. 557.— Hylesinus piniperda. Fig. 558.—Larva of Scolytus. 
Forest of Hartz, a million and a half of trees were lost by 
these insects. Often have the priests implored, in the churches, 
the Divine clemency, to put an end to the devastations made by 
them. 
We arrive at the tribe of the Longicornes, which contains 
beautiful insects, of elegant shape and varied colours, sometimes 
also of rather large dimensions. 
The genus Cerambyx has the antenne very long ; they exceed 
in some of the species two or three times the length of the body. 
The larvee are large whitish worms, which live in the wood of trees, 
the adult insects frequenting flowers, rotten trees, &c. In the 
month of June, on the Continent, one meets on the oaks with the 
Great Capicorne (Cerambyx heros, Fig. 559), of a dark brown, 


