Vera, Vladimir & the broken butterfly

In Speak Memory, Nabokov keeps talking about having to get outside with his butterfly net and his killing jar.  The killing jar -- I picture a big, clear glass mason jar and in my head it's getting all mixed up with the 7 hour BBC series about Auschwitz that I'm in the middle of watching.  Talk about killing.
Vera was Jewish.  One of the death camps killed over 700,000 people in the month of August in 1942.
The Nazis made factory work of it.  I know it is vastly different than one boy running outside with his butterfly net and his killing jar.  I do know that.  And times are different now.  If Nabokov was a boy now he might have a wonderful camera ... and a blog.