Does StandardWrapperValve create new instances of servlets?

[José Cornado]

I am studying the following diagram:

https://tomcat.apache.org/tomcat-9.0-doc/architecture/
requestProcess/request-process.png

And I have the following question: is StandardWrapperValve in charge of
creating new instances of servlets?

If I wanted to intercept servlet instance(s) prior to service, am I looking
the right place?

Thanks a lot!