BioQuip Malaise traps are effective 24-hour collectors of any insect species that flies. They enable entomologists to conduct random survey sampling for migration, population and ecological studies. Optimum location for set up is in natural flyway such as stream bed, wooded area opening, wash or gully. Insects encounter netting sides of the trap during normal flight and are directed to crawl upward into the collecting chamber. The sloping top prevents escape from the upper area.
Traps may be erected and left unattended for long periods of time with periodic servicing of the collecting chamber. Because of their designs, Malaise traps collect insects flying from all directions as air movement changes. They are especially effective for collection of Diptera and Hymenoptera.
2875A and 2875AG traps are square in configuration, 7′ tall and 4’on the sides, with four central vanes to stop insect flight. Model 2875D is H shaped, 6′ tall x 6′ wide with 2-4′ sides (depth), and based on the Townes pattern (Ent. News 83:239-247, 1972) with the collecting head located at the top. Traps weight about 7-8 lbs. each.
The tent portion is made of white or green tricot polyester netting, carefully sewn and reinforced at the seams with nylon carpet tape. White netting has been used in BioQuip Malaise trap tents for many years. Dark green netting is also listed for those who feel that white tents reflect too much sunlight and influence quantity of specimens or number of species captured. It blends well with most backgrounds and may assure a more representative sampling than white netting.
The dry-type collecting head is an 8″ x 4″ diameter clear acrylic tube with inverted truncated funnel at the bottom to direct insects into the chamber and prevent escape. Permanently mounted bungee cords are used to attach the cap to the collecting head, and to secure the collecting head to the trap socket. The collecting chamber is easily removed for access to specimens or for recharging by unhooking the bungee loops. A chamber for cyanide or DDVP is built into the head.
NOTE: Liquid killing agents such as ethyl acetate or acetone must not be used in the collecting head as these chemicals will fracture or otherwise degrade the plastic. Ethyl alcohol in dilution greater than 20% will cause the acrylic to fracture
If you prefer a combination wet or dry collecting head, see #2875WDH.
Center support poles are swaged aluminum tube segments. A 12″ steel spike is partially inserted into the bottom segment, with the point driven into the ground for center pole stability. Nylon cord tie-downs and plastic tent stakes are provided to secure tautness in set up. Assembly instructions are included.
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