INSECTS. 



149 



Fig. 140), representing an insect which frequents stony places, 

 and is allied, in its structure, to that found in sugar {Lepinna). 

 The name Podura, meaning literally a "leg in the tail," Avas 

 bestowed by Linnaeus on those which have the tail forked 



Fig. UI. — PODUBA (MAG.NIFIBO). 



Fig. 140. 

 Machilis (maqnifikd). 



Fig. 142. — The common LoroK 



(magnified), with toe EOG8 

 TUB NATURAL SI7.B AND MAO- 

 MIPIED. 



{Fig. 141). It is kept bent underneath the body when not 

 in use; when unbent it acts as a spring, and has given origin 

 to their English name of Spring-tails."* Some species 

 abound on pools, leaping even on the surface of the water; 

 others may be found under stones or beneath decaying leaves. 



III. Parasita The Louse {Fig. 142) and its alUes 



insects parasitic on man and the lower animals — form the 

 numerous but unpopular genera comprised in the present order. 



• A Paper, by Robert Templeton, Esq. on the Irish species of spring- 

 tailed insects, ia published in the Transactions of the Entomological 

 Society, voL L 



