THE CHARACTERISTICS OF INSECTS. 



225 



In the second variety the articulated legs are six in number. 

 They are, besides, inserted as already described, but the fourth 



Fig. 1. Eggs of Insects. 1. Eggs of Coleoptera (opened shell of Hydrophilus picens). 2. 

 E<zgs of Moths (Bomhyx neustria). 3. Eggs of Moths {Lasiocampa pint). 4. Eggs of 

 Orthoptera (Acrididcs). 5. Eggs of Orthopiera (Blatta). 6. Eggs of Neuroptera {Heme- 

 -roba). 7. Egg of Diptera {(Estr ides). 8. Eggs of Louse. 



and following rings are furnished with fleshy protuberances, with- 

 out articulations, which are designated as membranous legs. 



In the third variety, larvae are regarded as apodous, in which, 



while they have no t 



articulated legs, 

 the locomotive ap- 

 paratus is often 

 represented by 

 pads similar to the 

 membranous legs. 

 Some larvae bear 

 silky tufts, others 

 a sort of spines, 

 and others fleshy 

 appendages of cu- 

 rious forms. Many, 

 like certain cater- 

 pillars, wear a 



Fig. 2. Larva with Articulated Legs, and Apodous Larva. 



brilliant livery, while others present a dull color that offers 

 to the eye only false tones, passing from a dirty white to a 



VOL. XXXIX. 17 



