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Assassin Bugs

Wheel bug

Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta

Order: Hemiptera

Family: Reduviidae

Assassin bugs are also known as Conenose, Kissing, and Wheel bugs. There are about 3000 different kinds of this insect. They vary widely in coloration, but are all fairly similar in shape. The Assassin bug as a group is mostly beneficial, feeding on insects such as mosquitos, flies and caterpillars, or other harmful pests. Injecting a toxin that quickly paralyzes its prey is how it got its name. This insect is aggressive, and will readily attack a perceived foe larger than itself. When left alone, they are a benefit, but certain kinds of Assassin bugs (known as the Conenose or Kissing bug) feed on the blood of vertebrates, which often includes humans. It is this type of Assassin bug that is considered a pest, and if bitten, you can experience a very painful ordeal. Conenose bugs are known for biting at night when their prey are asleep, and have the habit of biting around the mouth (thus the Kissing bug name). The welts are quite pronounced. Homes that are drafty, such as older log cabins, are often easy for this large bug to enter, They can be found in cracks or gaps, and around sinks. Diseases like Chagas are transmitted from the bites, putting these bugs in the pest category.

How They Travel

This insect is able to fly, and very good at climbing. Some species are attracted to lights, and easily find their way into

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homes via open doors. They are common in both North and South America. Different varieties can be found worldwide. 

How Best to Identify Assassin Bugs

The Assassin bug takes on a variety of colors and markings, but most are menacing in appearance. Noted for their beak-like proboscis and prominent eyes, Assassin bugs are insects with 6 legs, a head, thorax, and abdomen. With their wings folded over their backs, the colors often make very distinctive markings, such as X’s or outlines that contrast with their usually dull body color. Life stages take one year to complete with five molts. Nymphs resemble the adults, and need blood meals to advance to the next molt. There is one generation per year, and single eggs are often laid in cracks and crevices.

Treatment and Elimination

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Exterior spraying for Assassin bugs can be quite difficult. Treatment around doors, windows, and light sources will be the most effective. At times, a power spray of the surrounding grounds and shrubbery may be needed should populations build up. Bifen I/T will work for this type of exterior work. Dusting gaps, cracks, and other entry points is key to stop those bugs trying to enter in, or females who are in search of a place to lay their eggs. DeltaDust, Drione, DE (diatomaceous earth), or Boric acid should do nicely. This insect is commonly found in crawl spaces coming up through loose flooring or plumbing gaps, so attention should be paid in this section of any home up off the ground. Since this bug is rather large in size, you should at least attempt to seal up as many entry points as possible with caulks, tightening screens, door sweeps, or other necessary methods. Reduced lighting can be very beneficial. Interior sprays using Tempo, Demand CS, or Suspend SC, as well as other labeled products, will aid in control. Treating care around sinks, plumbing, or other interior access points with the aforementioned products will also be beneficial.