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 piceus). 2. Eggs of Moths (Bombyx neustria). 3. Eggs of Moths (Lasiocampa pini). 4. Eggs of Orthoptera (Acridides). 5. Eggs of Orthoptera (Blatta). 6. Eggs of Neuroptera (Hemeroba). 7. Egg of Diptera (Œstrides). 8. Eggs of Louse.
and following rings are furnished with fleshy protuberances, without articulations, which are designated as membranous legs.
In the third variety, larvæ are regarded as apodous, in which,
Fig. 2.—Larva with Articulated Legs, and Apodous Larva. while they have no articulated legs, the locomotive apparatus is often represented by pads similar to the membranous legs.
Some larvæ bear silky tufts, others a sort of spines, and others fleshy appendages of curious forms. Many, like certain caterpillars, wear a brilliant livery, while others present a dull color that offers to the eye only false tones, passing from a dirty white to a
