BLOOD-SUCKING MUSCIDJE. 



136 A. Stomoxys. Examine and draw the demonstration specimen of the stable 

 fly. Notice that the proboscis, composed of 'abium, maxilla) and mandibles, is adapted 

 for sucking blood, 



136 B. Glossina. Examine and draw the demonstration specimen of a tsetse-fly, with 

 long, piercing and blood-sucking proboscis, 



