Beatles on my lawn

 I have noticed in the last month a huge increase in beatles in my yard at
night.  Tonight when i went out to put the sprinkler on (don't be jealous SE
QLDers) there was probably around 20 to 30 jumping around the path.  I
googled lawn beatles a while back but all i got was some black ones.  These
are much lighter in colour, more greyish.  The area where I have the light
is obviously where I see them (I can't see in the dark yet but once my
carrots come up i think might eyesight will improve 10 fold) but the lawn
there is very healthy.  Around the back further it is yellowing off but I
thought that may have been a fungus as it is only yellow where it got lots
and lots of water when I was establishing my vege garden.

Should i be concerned about these beatles?  I love my lawn atm as I have it
very lush and green (i know there is many lawn haters out there but i'm not
one).  Would rather not use a pesticide if it will kill off earth worms as I
am only just now starting to notice them around in the gardens but if the
choice has to be made between worm and lawn lawn will win every time.  Who
am I to sit back and let mother natures lawn die when it could be so easily
saved?

Any ideas would be very much appreciated.

Cheers
Petesin

 You could try getting Heather Mills McCartney - she would certainly ward off
any Beatles now.

As for the Beetles- maybe you could get a big native lizard as a pet? They
like eating beetles.