Which roach species is described as being attracted to light?

• A. German roaches
• B. Asian roaches are attracted to light
• C. Brown banded roaches are attracted to light
• D. All roaches are attracted to light

Answer: (B)

Many cockroaches respond to light differently, a trait called phototaxis. The Asian cockroach is described as being attracted to light, meaning they’re drawn toward light sources and can be guided into traps or observed near lamps. This makes light-based monitoring and control particularly effective for them.

In contrast, German cockroaches typically conceal themselves in dark, humid harborage and are not known for being drawn to light, so light traps are less reliable for them. Brown-banded cockroaches tend to inhabit higher, dry areas and aren’t the species primarily noted for a strong attraction to light in standard guidance. Saying all roaches are attracted to light isn’t accurate because not every species shows this behavior.

So, the reason the choice about Asian roaches fits best is that their positive phototaxis is a distinctive, practically used trait for monitoring and control.