GADFLY (Tabanus bovinusj, the largest British species of the genus. 

 With its strong and well-developed mouth organs, wliich are beneath the head and cannot be seen in the specimen, it pierces the hides of 

 cattle and sucks their blood. Its enormous masses of compound ejes will be noticed oceupving nearly the whole of the surface of the head. The 

 two hom-like objects projecting from the front of the head are the antennte. Tlie first two pairs of legs were bent under the bodv in the 

 specimen photographed, and only the knees of the first pair can be seen. One of the halteres, or balancers, the substitutes for hind-wings in the 

 Diptera, can be seen as a knobbed stalk just above the left hind leg. 



QUEEN BEE. 



WORKER BEE. 



DRONE. 



(Apis meUiJica). 



The queen is the^mother as well as the ruler of the hive, being the only perfectly developed female present ; 

 her long, pointed abdomen distingiiishes her. She is furnished with a sting. The drone is the male bee, and may be 

 known by his broad, bulky body, and longer antennae ; he has very large eyes, which meet on liis forehead, and large and 

 powerful wings. Both of these peculiarities give him an advantage in mating with the queen in the air ; by his superior 

 sight he can see her at a distance, and by the strength of his wings he can rise above her. He is stingless, and his legs 

 are not provided with the means of collecting pollen, so that he rarely, if ever, visits flowers. The worker is the smallest 

 of the three, and being an imperfectly developed female, is provided with a sting. The workers have depressions on the 

 hind legs for carrying poUen, and by them all the work of the hive is performed. 



