58 ANIMAL ACTIVITIES. 
Do you find spiracles on either thorax or abdomen ? 
Do you find eyes and ocelli? 
Do you find antennz ? 
Write resemblances and differences for fly and grass- 
hopper. 
Fic. 57.—Larva and Pupa_ Fic. 58.—Right Fic. 59.—Balancer 
ofthe House-fly. 4, larva Winglet of of Bluebottle 
(magnified); ¢, pupa (mag- Bluebottle (magnified . 
nified ). (magnified). 
Summary of Drawings. (a) A fly as seen from 
above with the wings extended at right angles to the 
body xX 5. 
(0) The larva and pupa of a fly x 5. 
(c) One wing X 5. 
(2) A balancer much enlarged. 
(ec) One antenna as seen with the microscope. 
(7) One leg and foot as seen with the microscope. 
