80 Objects for t/ie Microscope. 



ANTENNA OF COCKCHAFER, 



another Lamellicorne beetle, every leaflet of whose beautiful 

 antennae shows a cellular tissue of oval cells, with nucleus 

 and nucleolus, according to Quekett ; but with an external 

 cuticle of hexagonal cells, according to Carpenter. The 

 organs of sensation, sacs and sacculi, are found in them, 

 and occupy the place of the nucleoli of Quekett. (See 

 antennae of Syrphus.) The leaflets of the male are much 

 longer than those of the female. 



ANTENNAE OF NITIDULARIA. 



An example of Claricorne antennae. These Nitidularia 

 are small beetles which haunt our flowers and swarm upon 

 nettles all the summer long, and may be recognised by their 

 antennae having eleven joints, the last three clubbed. 



ANTENNAE OF HYDROPHILUS, 



is an example of Palpicorne antennae ; clubbed also, but 

 differently shaped, and having only nine joints never 

 more. 



ANTENNAE OF ELATER. 



Here is a common little beetle, often called Skip-jack, 

 from its springing up with a jerk when laid on its back ; 

 easily recognised on plants by its depressed head, and 

 long dark body; also by its habit of falling down as if 

 dead when alarmed. The antennae are an example of the 

 Serricornes, toothed or serrated, especially those of the male 

 insect. 



For examples of variety of antennae in the Diptera, look 

 at the heads of Dolichopus, Empis, Sepedon, and Syrphus, 

 Phora, Tabanus, &c. Compare these with the antennae of 

 Bee, Saw-fly, Ichneumon-fly, and Dragon-fly. The antennae 

 not only vary in the species, but in the sexes, and are 

 always most beautiful in the male ; as in the head of a 

 Gnat, which is plumed, whilst that of the female is quite 

 plain. 



The wild Bees, Saw-flies, and Beetles, present many 

 examples where the different shape and length of the 



