Flytraps and Their Operation 



ALL-METAL FLYTRAP 



There is some demand for flytraps made of more durable material 

 than those that have been described on foreo;oing pa<jes. For the 

 guidance of those who desire such traps the following directions, 

 together with a working drawing (fig. 5), are given: 



SPECIFICATIONS 



Dimensions — As per workinR drawing. 



Wire — 14-mesh galvanized or copper gauze. 



Cyinder — Wire gauze, to be soldered completely around inside of top ring 

 and at intervals of 2 inchas or less in groove of bottom ring. Vertical seam to 

 be soldered entire and placed behind one leg. Where shipment of traps is not 

 contemplated the diameter of the top of the cylinder may be the same as that 

 of the bottom. 



Top — Wire gauze to be soldered completely around periphery on inside of 

 top ring. 



Cone — Wire gauze to be soldered completely around inside of cone ring and 

 vertically along seam. A 1-inch inlet hole shall be formed at apex of cone. 



Frame — To be made of 24-gauge galvanized iron. This includes top and 

 bottom rings and legs. 



Legs — Galvanized iron channels made as per detailed drawing and secured 

 to top and bottom rings with four rivets, %-inch in diameter, to each leg. 

 First turned and drilled as per drawing. 



Bottom eylinder ring — J shaped, with bottom edge of cylinder dropped into 

 J — crimped and soldered to secure. Ends of ring riveted to secure. 



Cone ring — Galvanized iron band with fV-inch round iron wire rolled into 

 lower edge as per cross-section drawing of " cone ring." 



Wing nuts — Four copper wing bolts and nuts, as per drawing, to hold cone 

 securely in place. 



TENT TRAPS 



The tent form of trap has been widely advocated in this country, 

 but recent experiments indicate that it is much less efficient than the 

 cone trap and usually as difficult to construct and almost as expen- 

 sive. The size of these traps may vary considerably, but one con- 

 structed according to the dimensions given in Figure 4 will be found 

 most convenient. The height of the tent should be about equal to 

 the width of the base, and the holes {C) along the apex of the tent 

 should be one-half to three-fourths of an inch in diameter and 1 inch 

 apart. The box {A) should be provided with hooks to pass through 

 the eyes on the base {B). Small blocks 1 inch thick are nailed 

 beneath the corners of the tent frame to serve as legs. 



MANURE-BOX TRAPS 



Manure pits or boxes are desirable for the temporary storage of 

 manure, especially in towns and cities. These have been widely 

 advocated, but the difficulty has been that manure often becomes 

 infested before it is put into them, and flies frequently breed out 

 before the boxes are emptied and often escape through the cracks. 

 To obviate these difficulties a manure box or pit, with a modified 

 tent trap or cone trap attached, is desirable. Arthur Swaim, of 

 Florida, has devised a form of manure trap consisting of a series of 

 .screen tents with exit holes along the ridges of these, over which is a 

 screen box. The latter retains the flies as they pass through the 

 holes in the tents. The entire trap is removable. 



