INSECTS AFFECTING MAN AND ANIMALS 179 



FIG. 127. Top of garbage can with small balloon fly trap of the 

 Hodge type attached. (After Bishopp, U. S. Dept. Agr.) 



FIG. 128. Conical hoop fly trap; side view. (After Bishopp, U. S. 



Dept. Agr.) 



A, hoops forming frame at bottom; B, hoops forming frame at top; C top 

 of trap made of barrel head; D, strips around door ; E, door frame ; F, screen on 

 door; G, buttons holding door; H, screen on outside of trap; /, strips on side of 

 trap between hoops; J, tips of these strips projecting to form legs; K, cone- L 

 united edges of screen forming cone; M, aperture at apex of cone. 



