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.) 



M 



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. 



