What is "blatta gigantea"

Drummer \Drum"mer\, n.

1. One whose office is to best the drum, as in military exercises and marching.

2. One who solicits custom; a commercial traveler. [Colloq. U.S.]
   --Bartlett.

3. (Zo["o]l.) A fish that makes a sound when caught; as:

   1. The squeteague.

   2. A California sculpin.

4. (Zo["o]l.) A large West Indian cockroach ( Blatta gigantea) which drums on woodwork, as a sexual call.